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Posted to notifications@dubbo.apache.org by li...@apache.org on 2019/07/03 07:22:37 UTC

[dubbo-samples] branch master updated: Add nacos samples (#100)

This is an automated email from the ASF dual-hosted git repository.

liujun pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/dubbo-samples.git


The following commit(s) were added to refs/heads/master by this push:
     new bf8f90f  Add nacos samples (#100)
bf8f90f is described below

commit bf8f90f29fbc38a1c236da18ab2abd5444541b23
Author: ken.lj <ke...@gmail.com>
AuthorDate: Wed Jul 3 15:22:33 2019 +0800

    Add nacos samples (#100)
---
 dubbo-samples-async/pom.xml                        |   1 +
 .../org/apache/dubbo/samples/server/Provider1.java |   2 +-
 .../org/apache/dubbo/samples/server/Provider2.java |   2 +-
 .../resources/spring/dubbo-consumer.properties     |   2 +-
 .../resources/spring/dubbo-provider.properties     |   2 +-
 .../dubbo-samples-configcenter-xml/pom.xml         |   2 +-
 .../apache/dubbo/samples/configcenter/ZKTools.java |   2 +-
 .../samples/configcenter/impl/DemoServiceImpl.java |   1 -
 .../src/main/resources/config-center.properties    |   2 +-
 .../pom.xml                                        |  55 ++---
 .../apache/dubbo/samples/basic/BasicConsumer.java  |  20 +-
 .../apache/dubbo/samples/basic/BasicProvider.java  |  25 +-
 .../dubbo/samples/basic/EmbeddedZooKeeper.java     | 255 +++++++++++++++++++++
 .../dubbo/samples/basic/api/DemoService.java       |   4 +-
 .../dubbo/samples/basic}/impl/DemoServiceImpl.java |   9 +-
 .../src/main/resources/log4j.properties            |   8 +-
 .../main/resources/spring/dubbo-demo-consumer.xml  |  36 +++
 .../main/resources/spring/dubbo-demo-provider.xml  |  36 +++
 .../apache/dubbo/samples/basic/DemoServiceIT.java  |  41 ++++
 .../dubbo-samples-applevel-override/pom.xml        |   2 +-
 .../apache/dubbo/samples/governance/ZKTools.java   |  15 +-
 .../src/main/resources/dubbo-override.yml          |   2 +-
 .../dubbo-samples-configconditionrouter/pom.xml    |   2 +-
 .../apache/dubbo/samples/governance/ZKTools.java   |  11 +-
 .../main/resources/spring/dubbo-demo-provider.xml  |   2 +-
 .../apache/dubbo/samples/governance/ZKTools.java   |  18 +-
 .../dubbo-samples-tagrouter/pom.xml                |   2 +-
 .../apache/dubbo/samples/governance/RuleUtil.java  |   4 +-
 .../main/resources/spring/dubbo-demo-provider.xml  |   2 +-
 .../dubbo-samples-nacos-conditionrouter}/pom.xml   |  15 +-
 .../dubbo/samples/governance/BasicConsumer.java}   |  32 +--
 .../dubbo/samples/governance/BasicProvider.java}   |  21 +-
 .../dubbo/samples/governance/api/DemoService.java} |   4 +-
 .../samples/governance/api/DemoService2.java}      |   4 +-
 .../samples/governance}/impl/DemoServiceImpl.java  |   6 +-
 .../samples/governance/impl/DemoServiceImpl2.java  |  12 +-
 .../main/resources/dubbo-routers-condition.yml}    |  14 +-
 .../src/main/resources/log4j.properties            |   9 +-
 .../main/resources/spring/dubbo-demo-consumer.xml  |  11 +-
 .../main/resources/spring/dubbo-demo-provider.xml  |   2 +-
 .../dubbo-samples-nacos-configcenter}/pom.xml      |  15 +-
 .../dubbo/samples/configcenter/BasicConsumer.java  |  21 +-
 .../dubbo/samples/configcenter/BasicProvider.java} |  23 +-
 .../samples/configcenter/EmbeddedZooKeeper.java    | 250 ++++++++++++++++++++
 .../samples/configcenter/api/DemoService.java}     |   4 +-
 .../samples/configcenter/impl/DemoServiceImpl.java |   1 -
 .../src/main/resources/config-center.properties    |   5 +-
 .../src/main/resources/log4j.properties            |   9 +-
 .../resources/spring/configcenter-consumer.xml     |  16 +-
 .../resources/spring/configcenter-provider.xml     |  31 +++
 .../dubbo/samples/configcenter/DemoServiceIT.java  |  41 ++++
 .../dubbo-samples-nacos-override}/pom.xml          |  36 ++-
 .../dubbo/samples/governance/BasicConsumer.java}   |  22 +-
 .../dubbo/samples/governance/BasicProvider.java}   |  20 +-
 .../dubbo/samples/governance/api/DemoService.java} |   6 +-
 .../samples/governance}/impl/DemoServiceImpl.java  |  18 +-
 .../src/main/resources/dubbo-override.yml          |  15 +-
 .../src/main/resources/log4j.properties            |   9 +-
 .../main/resources/spring/dubbo-demo-consumer.xml  |  14 +-
 .../main/resources/spring/dubbo-demo-provider.xml  |  12 +-
 .../dubbo-samples-nacos-registry}/pom.xml          |  17 +-
 .../apache/dubbo/samples/ConsumerBootstrap.java    |   0
 .../apache/dubbo/samples/ProviderBootstrap.java    |   0
 .../samples/action/GreetingServiceConsumer.java    |   0
 .../apache/dubbo/samples/api/GreetingService.java  |   0
 .../samples/impl/AnnotatedGreetingService.java     |   0
 .../src/main/resources/log4j.properties            |   0
 .../resources/spring/dubbo-consumer.properties     |   0
 .../resources/spring/dubbo-provider.properties     |   0
 .../dubbo-samples-nacos-tagrouter}/pom.xml         |  17 +-
 .../dubbo/samples/governance/BasicConsumer.java    |  60 +++++
 .../dubbo/samples/governance/BasicProvider.java}   |  20 +-
 .../apache/dubbo/samples/governance/RuleUtil.java  |   4 +-
 .../dubbo/samples/governance/api/DemoService.java} |   4 +-
 .../samples/governance/api/DemoService2.java}      |   4 +-
 .../samples/governance}/impl/DemoServiceImpl.java  |   6 +-
 .../samples/governance/impl/DemoServiceImpl2.java  |  12 +-
 .../src/main/resources/dubbo-routers-tag.yml}      |  15 +-
 .../src/main/resources/log4j.properties            |   9 +-
 .../main/resources/spring/dubbo-demo-consumer.xml  |  14 +-
 .../main/resources/spring/dubbo-demo-provider.xml  |   6 +-
 .../dubbo/samples/governance/DemoServiceIT.java    |  73 ++++++
 dubbo-samples-nacos/pom.xml                        |  83 +++----
 pom.xml                                            |   1 +
 84 files changed, 1214 insertions(+), 394 deletions(-)

diff --git a/dubbo-samples-async/pom.xml b/dubbo-samples-async/pom.xml
index 605438e..ee2f62d 100644
--- a/dubbo-samples-async/pom.xml
+++ b/dubbo-samples-async/pom.xml
@@ -31,6 +31,7 @@
         <module>dubbo-samples-async-generated-future</module>
         <module>dubbo-samples-async-original-future</module>
         <module>dubbo-samples-async-provider</module>
+        <module>dubbo-samples-async-onerror</module>
     </modules>
 
 </project>
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider1.java b/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider1.java
index 4ef486e..98b6cca 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider1.java
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider1.java
@@ -56,7 +56,7 @@ public class Provider1 {
         dubboConfigurations.put("dubbo.registry.address", "zookeeper://127.0.0.1:2181");
         // you will need to add the configcenter address if you want to use the service governance features in 2.7,
         // e.g., overrides and routers, but notice it will not be used for gathering startup configurations.
-        dubboConfigurations.put("dubbo.configcenter.address", "zookeeper://127.0.0.1:2181");
+        dubboConfigurations.put("dubbo.config-center.address", "zookeeper://127.0.0.1:2181");
 
         return dubboConfigurations;
     }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider2.java b/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider2.java
index 8f5328d..ea4c233 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider2.java
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-api/src/main/java/org/apache/dubbo/samples/server/Provider2.java
@@ -71,7 +71,7 @@ public class Provider2 {
         dubboConfigurations.put("dubbo.registry.address", "zookeeper://" + zookeeperHost + ":2181");
         // you will need to add the config center address if you want to use the service governance features in 2.7,
         // e.g., overrides and routers, but notice it will not be used for gathering startup configurations.
-        dubboConfigurations.put("dubbo.configcenter.address", "zookeeper://" + zookeeperHost + ":2181");
+        dubboConfigurations.put("dubbo.config-center.address", "zookeeper://" + zookeeperHost + ":2181");
 
         return dubboConfigurations;
     }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-consumer.properties b/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-consumer.properties
index c4bcfc4..79c6442 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-consumer.properties
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-consumer.properties
@@ -18,4 +18,4 @@
 #
 dubbo.application.name=configcenter-multi-registries-consumer
 dubbo.config-center.address=zookeeper://${zookeeper.address:127.0.0.1}:2181
-dubbo.configCenter.configFile=dubbo.properties
+dubbo.config-center.config-file=dubbo.properties
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties b/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties
index ed0967a..ac58273 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties
@@ -18,4 +18,4 @@
 #
 dubbo.application.name=configcenter-multi-registries-provider
 dubbo.config-center.address=zookeeper://${zookeeper.address:127.0.0.1}:2181
-dubbo.configCenter.configFile=dubbo.properties
+dubbo.config-center.config-file=dubbo.properties
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
index ecc2d60..38213a8 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
@@ -31,7 +31,7 @@
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/ZKTools.java b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/ZKTools.java
index ebd89b3..c9ebebd 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/ZKTools.java
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/ZKTools.java
@@ -64,7 +64,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/configcenter-consumer/dubbo.properties";
+            String path = "/dubbo/config/configcenter-provider/dubbo.properties";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
index a4deb00..62bd159 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
@@ -19,7 +19,6 @@
 
 package org.apache.dubbo.samples.configcenter.impl;
 
-
 import org.apache.dubbo.rpc.RpcContext;
 import org.apache.dubbo.samples.configcenter.api.DemoService;
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties
index 3b8c65d..ef421ba 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties
+++ b/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties
@@ -15,7 +15,7 @@
 # Add the following global external properties to `/dubbo/config/dubbo/dubbo.properties`
 dubbo.registry.address=zookeeper://127.0.0.1:2181
 dubbo.protocol.port=20880
-dubbo.metadataReport.address=zookeeper://127.0.0.1:2181
+dubbo.metadata-report.address=zookeeper://127.0.0.1:2181
 dubbo.registry.simplified=true
 # Optional. Add the following application(Consumer) specific external properties
 # to `/dubbo/config/configcenter-consumer/dubbo.properties`
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml b/dubbo-samples-environment-keys/pom.xml
similarity index 80%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
copy to dubbo-samples-environment-keys/pom.xml
index ecc2d60..66dd476 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
+++ b/dubbo-samples-environment-keys/pom.xml
@@ -1,23 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~
-  ~   Licensed to the Apache Software Foundation (ASF) under one or more
-  ~   contributor license agreements.  See the NOTICE file distributed with
-  ~   this work for additional information regarding copyright ownership.
-  ~   The ASF licenses this file to You under the Apache License, Version 2.0
-  ~   (the "License"); you may not use this file except in compliance with
-  ~   the License.  You may obtain a copy of the License at
-  ~
-  ~       http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~   Unless required by applicable law or agreed to in writing, software
-  ~   distributed under the License is distributed on an "AS IS" BASIS,
-  ~   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~   See the License for the specific language governing permissions and
-  ~   limitations under the License.
-  ~
-  -->
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
@@ -26,13 +23,12 @@
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configcenter-xml</artifactId>
+    <artifactId>dubbo-samples-environment-keys</artifactId>
 
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
-        <spring.version>4.3.16.RELEASE</spring.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
         <jib-maven-plugin.version>1.2.0</jib-maven-plugin.version>
@@ -40,8 +36,8 @@
         <maven-failsafe-plugin.version>2.21.0</maven-failsafe-plugin.version>
         <image.name>${artifactId}:${dubbo.version}</image.name>
         <dubbo.port>20880</dubbo.port>
-        <zookeeper.port>2181</zookeeper.port>
-        <main-class>org.apache.dubbo.samples.configcenter.BasicProvider</main-class>
+        <main-class>org.apache.dubbo.samples.basic.BasicProvider</main-class>
+        <spring-test.version>4.3.16.RELEASE</spring-test.version>
     </properties>
 
     <dependencies>
@@ -68,7 +64,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-            <version>${spring.version}</version>
+            <version>${spring-test.version}</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -101,7 +97,7 @@
                         <version>${jib-maven-plugin.version}</version>
                         <configuration>
                             <from>
-                                <image>openjdk:8</image>
+                                <image>${java-image.name}</image>
                             </from>
                             <to>
                                 <image>${image.name}</image>
@@ -110,14 +106,11 @@
                                 <mainClass>${main-class}</mainClass>
                                 <ports>
                                     <port>${dubbo.port}</port>
-                                    <port>${zookeeper.port}</port>
+                                    <port>2181</port>
                                 </ports>
                                 <environment>
                                     <DUBBO_IP_TO_REGISTRY>${dubbo-local-address}</DUBBO_IP_TO_REGISTRY>
                                 </environment>
-                                <jvmFlags>
-                                    <jvmFlag>-Dzookeeper.address=${dubbo-local-address}</jvmFlag>
-                                </jvmFlags>
                             </container>
                         </configuration>
                         <executions>
@@ -141,7 +134,7 @@
                                     <run>
                                         <ports>
                                             <port>${dubbo.port}:${dubbo.port}</port>
-                                            <port>${zookeeper.port}:${zookeeper.port}</port>
+                                            <port>2181:2181</port>
                                         </ports>
                                         <wait>
                                             <log>dubbo service started</log>
@@ -179,9 +172,6 @@
                                     <goal>verify</goal>
                                 </goals>
                                 <configuration>
-                                    <systemPropertyVariables>
-                                        <zookeeper.address>${dubbo-local-address}</zookeeper.address>
-                                    </systemPropertyVariables>
                                     <includes>
                                         <include>**/*IT.java</include>
                                     </includes>
@@ -207,5 +197,4 @@
             </plugin>
         </plugins>
     </build>
-
 </project>
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicConsumer.java
similarity index 60%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java
copy to dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicConsumer.java
index 5e7ba3d..4532160 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java
+++ b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicConsumer.java
@@ -17,17 +17,19 @@
  *
  */
 
-package org.apache.dubbo.samples.impl;
+package org.apache.dubbo.samples.basic;
 
-import org.apache.dubbo.config.annotation.Service;
-import org.apache.dubbo.samples.api.GreetingService;
+import org.apache.dubbo.samples.basic.api.DemoService;
 
-@Service
-public class AnnotatedGreetingService implements GreetingService {
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-    public String sayHello(String name) {
-        System.out.println("greeting service received: " + name);
-        return "hello, " + name;
-    }
+public class BasicConsumer {
 
+    public static void main(String[] args) {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
+        context.start();
+        DemoService demoService = (DemoService) context.getBean("demoService");
+        String hello = demoService.sayHello("world");
+        System.out.println(hello);
+    }
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicProvider.java
similarity index 58%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
copy to dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicProvider.java
index 3c640b6..7e64a53 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
+++ b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/BasicProvider.java
@@ -17,24 +17,25 @@
  *
  */
 
-package org.apache.dubbo.samples;
+package org.apache.dubbo.samples.basic;
 
-import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
-import org.springframework.context.annotation.AnnotationConfigApplicationContext;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.PropertySource;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-public class ProviderBootstrap {
+public class BasicProvider {
 
     public static void main(String[] args) throws Exception {
-        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ProviderConfiguration.class);
+        new EmbeddedZooKeeper(2181, false).start();
+        // wait for embedded zookeeper start completely.
+        Thread.sleep(1000);
+
+        System.setProperty("dubbo.labels", "dubbo.key1=value1; dubbo.key2=value2");
+        System.setProperty("dubbo.env.keys", "DUBBO_KEY1, DUBBO_KEY2");
+
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
         context.start();
+
+        System.out.println("dubbo service started");
         System.in.read();
     }
 
-    @Configuration
-    @EnableDubbo(scanBasePackages = "org.apache.dubbo.samples.impl")
-    @PropertySource("classpath:/spring/dubbo-provider.properties")
-    static class ProviderConfiguration {
-    }
 }
diff --git a/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/EmbeddedZooKeeper.java b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/EmbeddedZooKeeper.java
new file mode 100644
index 0000000..969c9b8
--- /dev/null
+++ b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/EmbeddedZooKeeper.java
@@ -0,0 +1,255 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.samples.basic;
+
+import org.apache.zookeeper.server.ServerConfig;
+import org.apache.zookeeper.server.ZooKeeperServerMain;
+import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.SmartLifecycle;
+import org.springframework.util.ErrorHandler;
+import org.springframework.util.SocketUtils;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import java.util.Properties;
+import java.util.UUID;
+
+/**
+ * from: https://github.com/spring-projects/spring-xd/blob/v1.3.1.RELEASE/spring-xd-dirt/src/main/java/org/springframework/xd/dirt/zookeeper/ZooKeeperUtils.java
+ *
+ * Helper class to start an embedded instance of standalone (non clustered) ZooKeeper.
+ *
+ * NOTE: at least an external standalone server (if not an ensemble) are recommended, even for
+ * {@link org.springframework.xd.dirt.server.singlenode.SingleNodeApplication}
+ *
+ * @author Patrick Peralta
+ * @author Mark Fisher
+ * @author David Turanski
+ */
+public class EmbeddedZooKeeper implements SmartLifecycle {
+
+    /**
+     * Logger.
+     */
+    private static final Logger logger = LoggerFactory.getLogger(EmbeddedZooKeeper.class);
+
+    /**
+     * ZooKeeper client port. This will be determined dynamically upon startup.
+     */
+    private final int clientPort;
+
+    /**
+     * Whether to auto-start. Default is true.
+     */
+    private boolean autoStartup = true;
+
+    /**
+     * Lifecycle phase. Default is 0.
+     */
+    private int phase = 0;
+
+    /**
+     * Thread for running the ZooKeeper server.
+     */
+    private volatile Thread zkServerThread;
+
+    /**
+     * ZooKeeper server.
+     */
+    private volatile ZooKeeperServerMain zkServer;
+
+    /**
+     * {@link ErrorHandler} to be invoked if an Exception is thrown from the ZooKeeper server thread.
+     */
+    private ErrorHandler errorHandler;
+
+    private boolean daemon = true;
+
+    /**
+     * Construct an EmbeddedZooKeeper with a random port.
+     */
+    public EmbeddedZooKeeper() {
+        clientPort = SocketUtils.findAvailableTcpPort();
+    }
+
+    /**
+     * Construct an EmbeddedZooKeeper with the provided port.
+     *
+     * @param clientPort  port for ZooKeeper server to bind to
+     */
+    public EmbeddedZooKeeper(int clientPort, boolean daemon) {
+        this.clientPort = clientPort;
+        this.daemon = daemon;
+    }
+
+    /**
+     * Returns the port that clients should use to connect to this embedded server.
+     *
+     * @return dynamically determined client port
+     */
+    public int getClientPort() {
+        return this.clientPort;
+    }
+
+    /**
+     * Specify whether to start automatically. Default is true.
+     *
+     * @param autoStartup whether to start automatically
+     */
+    public void setAutoStartup(boolean autoStartup) {
+        this.autoStartup = autoStartup;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isAutoStartup() {
+        return this.autoStartup;
+    }
+
+    /**
+     * Specify the lifecycle phase for the embedded server.
+     *
+     * @param phase the lifecycle phase
+     */
+    public void setPhase(int phase) {
+        this.phase = phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int getPhase() {
+        return this.phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isRunning() {
+        return (zkServerThread != null);
+    }
+
+    /**
+     * Start the ZooKeeper server in a background thread.
+     * <p>
+     * Register an error handler via {@link #setErrorHandler} in order to handle
+     * any exceptions thrown during startup or execution.
+     */
+    @Override
+    public synchronized void start() {
+        if (zkServerThread == null) {
+            zkServerThread = new Thread(new ServerRunnable(), "ZooKeeper Server Starter");
+            zkServerThread.setDaemon(daemon);
+            zkServerThread.start();
+        }
+    }
+
+    /**
+     * Shutdown the ZooKeeper server.
+     */
+    @Override
+    public synchronized void stop() {
+        if (zkServerThread != null) {
+            // The shutdown method is protected...thus this hack to invoke it.
+            // This will log an exception on shutdown; see
+            // https://issues.apache.org/jira/browse/ZOOKEEPER-1873 for details.
+            try {
+                Method shutdown = ZooKeeperServerMain.class.getDeclaredMethod("shutdown");
+                shutdown.setAccessible(true);
+                shutdown.invoke(zkServer);
+            }
+
+            catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+
+            // It is expected that the thread will exit after
+            // the server is shutdown; this will block until
+            // the shutdown is complete.
+            try {
+                zkServerThread.join(5000);
+                zkServerThread = null;
+            }
+            catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                logger.warn("Interrupted while waiting for embedded ZooKeeper to exit");
+                // abandoning zk thread
+                zkServerThread = null;
+            }
+        }
+    }
+
+    /**
+     * Stop the server if running and invoke the callback when complete.
+     */
+    @Override
+    public void stop(Runnable callback) {
+        stop();
+        callback.run();
+    }
+
+    /**
+     * Provide an {@link ErrorHandler} to be invoked if an Exception is thrown from the ZooKeeper server thread. If none
+     * is provided, only error-level logging will occur.
+     *
+     * @param errorHandler the {@link ErrorHandler} to be invoked
+     */
+    public void setErrorHandler(ErrorHandler errorHandler) {
+        this.errorHandler = errorHandler;
+    }
+
+    /**
+     * Runnable implementation that starts the ZooKeeper server.
+     */
+    private class ServerRunnable implements Runnable {
+
+        @Override
+        public void run() {
+            try {
+                Properties properties = new Properties();
+                File file = new File(System.getProperty("java.io.tmpdir")
+                    + File.separator + UUID.randomUUID());
+                file.deleteOnExit();
+                properties.setProperty("dataDir", file.getAbsolutePath());
+                properties.setProperty("clientPort", String.valueOf(clientPort));
+
+                QuorumPeerConfig quorumPeerConfig = new QuorumPeerConfig();
+                quorumPeerConfig.parseProperties(properties);
+
+                zkServer = new ZooKeeperServerMain();
+                ServerConfig configuration = new ServerConfig();
+                configuration.readFrom(quorumPeerConfig);
+
+                zkServer.runFromConfig(configuration);
+            }
+            catch (Exception e) {
+                if (errorHandler != null) {
+                    errorHandler.handleError(e);
+                }
+                else {
+                    logger.error("Exception running embedded ZooKeeper", e);
+                }
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/api/DemoService.java
similarity index 92%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/api/DemoService.java
index 997ece7..f83ffaf 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/api/DemoService.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.basic.api;
 
-public interface GreetingService {
+public interface DemoService {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/impl/DemoServiceImpl.java
similarity index 83%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/impl/DemoServiceImpl.java
index a4deb00..242fcc3 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-environment-keys/src/main/java/org/apache/dubbo/samples/basic/impl/DemoServiceImpl.java
@@ -17,11 +17,10 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.basic.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
+import org.apache.dubbo.samples.basic.api.DemoService;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -30,8 +29,8 @@ public class DemoServiceImpl implements DemoService {
 
     @Override
     public String sayHello(String name) {
-        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " +
-                name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
+        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " + name +
+                ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
 
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-environment-keys/src/main/resources/log4j.properties
similarity index 92%
copy from dubbo-samples-nacos/src/main/resources/log4j.properties
copy to dubbo-samples-environment-keys/src/main/resources/log4j.properties
index dcb78e2..d6ecd5c 100644
--- a/dubbo-samples-nacos/src/main/resources/log4j.properties
+++ b/dubbo-samples-environment-keys/src/main/resources/log4j.properties
@@ -6,18 +6,20 @@
 #   The ASF licenses this file to You under the Apache License, Version 2.0
 #   (the "License"); you may not use this file except in compliance with
 #   the License.  You may obtain a copy of the License at
-#  
+#
 #       http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 #   Unless required by applicable law or agreed to in writing, software
 #   distributed under the License is distributed on an "AS IS" BASIS,
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-#  
+#
 #
 
+###set log levels###
 log4j.rootLogger=info, stdout
+###output to the console###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
diff --git a/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-consumer.xml b/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-consumer.xml
new file mode 100644
index 0000000..86f34b4
--- /dev/null
+++ b/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-consumer.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
+       xmlns="http://www.springframework.org/schema/beans"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
+
+    <!-- consumer's application name, used for tracing dependency relationship (not a matching criterion),
+    don't set it same as provider -->
+    <dubbo:application name="demo-consumer"/>
+
+    <!-- use multicast registry center to discover service -->
+    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
+
+    <!-- generate proxy for the remote service, then demoService can be used in the same way as the
+    local regular interface -->
+    <dubbo:reference id="demoService" check="true" interface="org.apache.dubbo.samples.basic.api.DemoService"/>
+
+</beans>
diff --git a/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-provider.xml
new file mode 100644
index 0000000..9e13902
--- /dev/null
+++ b/dubbo-samples-environment-keys/src/main/resources/spring/dubbo-demo-provider.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
+       xmlns="http://www.springframework.org/schema/beans"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd">
+
+    <!-- provider's application name, used for tracing dependency relationship -->
+    <dubbo:application name="demo-provider"/>
+
+    <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
+
+    <!-- service implementation, as same as regular local bean -->
+    <bean id="demoService" class="org.apache.dubbo.samples.basic.impl.DemoServiceImpl"/>
+
+    <!-- declare the service interface to be exported -->
+    <dubbo:service interface="org.apache.dubbo.samples.basic.api.DemoService" ref="demoService"/>
+
+</beans>
diff --git a/dubbo-samples-environment-keys/src/test/java/org/apache/dubbo/samples/basic/DemoServiceIT.java b/dubbo-samples-environment-keys/src/test/java/org/apache/dubbo/samples/basic/DemoServiceIT.java
new file mode 100644
index 0000000..6d7d7ec
--- /dev/null
+++ b/dubbo-samples-environment-keys/src/test/java/org/apache/dubbo/samples/basic/DemoServiceIT.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.samples.basic;
+
+import org.apache.dubbo.samples.basic.api.DemoService;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "classpath*:spring/dubbo-demo-consumer.xml")
+public class DemoServiceIT {
+    @Autowired
+    @Qualifier("demoService")
+    private DemoService service;
+
+    @Test
+    public void testGreeting() throws Exception {
+        Assert.assertTrue(service.sayHello("dubbo").startsWith("Hello dubbo"));
+    }
+}
diff --git a/dubbo-samples-governance/dubbo-samples-applevel-override/pom.xml b/dubbo-samples-governance/dubbo-samples-applevel-override/pom.xml
index ba0ce4f..8813b8b 100644
--- a/dubbo-samples-governance/dubbo-samples-applevel-override/pom.xml
+++ b/dubbo-samples-governance/dubbo-samples-applevel-override/pom.xml
@@ -31,7 +31,7 @@
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
diff --git a/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java b/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
index 90d5abc..0329805 100644
--- a/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
+++ b/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
@@ -16,8 +16,6 @@
  */
 package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.common.utils.StringUtils;
-
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
@@ -63,7 +61,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/governance-appoverride-provider/configurators";
+            String path = "/dubbo/config/dubbo/governance-appoverride-provider.configurators";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().withMode(CreateMode.PERSISTENT).forPath(path);
             }
@@ -93,7 +91,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/governance-appoverride-consumer/configurators";
+            String path = "/dubbo/config/dubbo/governance-appoverride-consumer.configurators";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().withMode(CreateMode.PERSISTENT).forPath(path);
             }
@@ -122,7 +120,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/org.apache.dubbo.samples.governance.api.DemoService/configurators";
+            String path = "/dubbo/config/dubbo/org.apache.dubbo.samples.governance.api.DemoService::.configurators";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().withMode(CreateMode.PERSISTENT).forPath(path);
             }
@@ -136,11 +134,4 @@ public class ZKTools {
         client.setData().forPath(path, data.getBytes());
     }
 
-    private static String pathToKey(String path) {
-        if (StringUtils.isEmpty(path)) {
-            return path;
-        }
-        return path.replace("/dubbo/config/", "").replaceAll("/", ".");
-    }
-
 }
diff --git a/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/resources/dubbo-override.yml b/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/resources/dubbo-override.yml
index 622d4b1..3abab95 100644
--- a/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/resources/dubbo-override.yml
+++ b/dubbo-samples-governance/dubbo-samples-applevel-override/src/main/resources/dubbo-override.yml
@@ -17,7 +17,7 @@
 #
 #
 
-# Execute on governance-appoverride-provider only and only those instances who's port is 20880 will be lifted to 1000.
+# Execute on governance-appoverride-provider only and only those instances whose port is 20880 will be lifted to 1000.
 # This will take effect on all services in governance-appoverride-provider.
 ---
 configVersion: v2.7
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml b/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
index e82713c..db77509 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
+++ b/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
@@ -31,7 +31,7 @@
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java b/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
index b8cd14d..4e55a52 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
+++ b/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
@@ -16,8 +16,6 @@
  */
 package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.common.utils.StringUtils;
-
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
@@ -54,7 +52,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/governance-conditionrouter-consumer/condition-router";
+            String path = "/dubbo/config/dubbo/governance-conditionrouter-consumer.condition-router";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
@@ -68,11 +66,4 @@ public class ZKTools {
         client.setData().forPath(path, data.getBytes());
     }
 
-    private static String pathToKey(String path) {
-        if (StringUtils.isEmpty(path)) {
-            return path;
-        }
-        return path.replace("/dubbo/config/", "").replaceAll("/", ".");
-    }
-
 }
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
index 0c332a4..fed3425 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
@@ -29,7 +29,7 @@
 
     <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
+    <dubbo:protocol port="${dubbo.port:-1}"/>
 
     <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
diff --git a/dubbo-samples-governance/dubbo-samples-servicelevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java b/dubbo-samples-governance/dubbo-samples-servicelevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
index 353f6bf..bf9c612 100644
--- a/dubbo-samples-governance/dubbo-samples-servicelevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
+++ b/dubbo-samples-governance/dubbo-samples-servicelevel-override/src/main/java/org/apache/dubbo/samples/governance/ZKTools.java
@@ -16,8 +16,6 @@
  */
 package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.common.utils.StringUtils;
-
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
@@ -56,7 +54,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/org.apache.dubbo.samples.governance.api.DemoService/configurators";
+            String path = "/dubbo/config/dubbo/org.apache.dubbo.samples.governance.api.DemoService::.configurators";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
@@ -84,7 +82,7 @@ public class ZKTools {
         System.out.println(str);
 
         try {
-            String path = "/dubbo/config/governance-serviceoverride-consumer/configurators";
+            String path = "/dubbo/config/dubbo/governance-serviceoverride-consumer.configurators";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
@@ -96,11 +94,11 @@ public class ZKTools {
 
     public static void cleanup() {
         try {
-            String path = "/dubbo/config/org.apache.dubbo.samples.governance.api.DemoService/configurators";
+            String path = "/dubbo/config/dubbo/org.apache.dubbo.samples.governance.api.DemoService::.configurators";
             if (client.checkExists().forPath(path) != null) {
                 client.delete().forPath(path);
             }
-            path = "/dubbo/config/governance-serviceoverride-consumer/configurators";
+            path = "/dubbo/config/dubbo/governance-serviceoverride-consumer.configurators";
             if (client.checkExists().forPath(path) != null) {
                 client.delete().forPath(path);
             }
@@ -112,12 +110,4 @@ public class ZKTools {
     private static void setData(String path, String data) throws Exception {
         client.setData().forPath(path, data.getBytes());
     }
-
-    private static String pathToKey(String path) {
-        if (StringUtils.isEmpty(path)) {
-            return path;
-        }
-        return path.replace("/dubbo/config/", "").replaceAll("/", ".");
-    }
-
 }
diff --git a/dubbo-samples-governance/dubbo-samples-tagrouter/pom.xml b/dubbo-samples-governance/dubbo-samples-tagrouter/pom.xml
index cb7ebd4..73cd617 100644
--- a/dubbo-samples-governance/dubbo-samples-tagrouter/pom.xml
+++ b/dubbo-samples-governance/dubbo-samples-tagrouter/pom.xml
@@ -30,7 +30,7 @@
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
diff --git a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java b/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
index 68dffad..53d4a2d 100644
--- a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
+++ b/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
@@ -44,7 +44,7 @@ public class RuleUtil {
 
     public static void generateRule() {
         try (InputStream yamlStream = RuleUtil.class.getResourceAsStream("/dubbo-routers-tag.yml")) {
-            String path = "/dubbo/config/governance-tagrouter-provider/tag-router";
+            String path = "/dubbo/config/dubbo/governance-tagrouter-provider.tag-router";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
@@ -55,7 +55,7 @@ public class RuleUtil {
     }
 
     public static void deleteRule() throws Exception {
-        String path = "/dubbo/config/governance-tagrouter-provider/tag-router";
+        String path = "/dubbo/config/dubbo/governance-tagrouter-provider.tag-router";
         if (client.checkExists().forPath(path) == null) {
             client.create().creatingParentsIfNeeded().forPath(path);
         }
diff --git a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
index f0a7b10..186372a 100644
--- a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
@@ -29,7 +29,7 @@
 
     <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <dubbo:protocol name="dubbo" port="${dubbo.port:20880}" heartbeat="10000"/>
+    <dubbo:protocol name="dubbo" port="${dubbo.port:-1}" heartbeat="10000"/>
 
     <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/pom.xml
similarity index 95%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/pom.xml
index e82713c..9246da7 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/pom.xml
@@ -26,12 +26,12 @@
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configconditionrouter</artifactId>
+    <artifactId>dubbo-samples-nacos-conditionrouter</artifactId>
     
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
@@ -54,6 +54,17 @@
 
         <dependency>
             <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-configcenter-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-dependencies-zookeeper</artifactId>
             <version>${dubbo.version}</version>
             <type>pom</type>
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
similarity index 52%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
index 3c640b6..4ec8b0f 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
@@ -17,24 +17,30 @@
  *
  */
 
-package org.apache.dubbo.samples;
+package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
-import org.springframework.context.annotation.AnnotationConfigApplicationContext;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.PropertySource;
+import org.apache.dubbo.samples.governance.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService2;
 
-public class ProviderBootstrap {
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class BasicConsumer {
 
     public static void main(String[] args) throws Exception {
-        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ProviderConfiguration.class);
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
         context.start();
-        System.in.read();
-    }
 
-    @Configuration
-    @EnableDubbo(scanBasePackages = "org.apache.dubbo.samples.impl")
-    @PropertySource("classpath:/spring/dubbo-provider.properties")
-    static class ProviderConfiguration {
+        DemoService demoService = context.getBean("demoService", DemoService.class);
+        DemoService2 demoService2 = context.getBean("demoService2", DemoService2.class);
+
+        while (true) {
+            String hello = demoService.sayHello("world");
+            System.out.println(hello);
+
+            String hello2 = demoService2.sayHello("world again");
+            System.out.println(hello2);
+
+            Thread.sleep(200);
+        }
     }
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
similarity index 63%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
index 98266bf..a59334c 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
@@ -17,20 +17,19 @@
  *
  */
 
-package org.apache.dubbo.samples.action;
+package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.config.annotation.Reference;
-import org.apache.dubbo.samples.api.GreetingService;
-import org.springframework.stereotype.Component;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-@Component("annotatedConsumer")
-public class GreetingServiceConsumer {
+import java.util.concurrent.CountDownLatch;
 
-    @Reference
-    private GreetingService greetingService;
+public class BasicProvider {
 
-    public String doSayHello(String name) {
-        return greetingService.sayHello(name);
-    }
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
+        context.start();
 
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
+    }
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
similarity index 91%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
index 997ece7..bde5f6e 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.governance.api;
 
-public interface GreetingService {
+public interface DemoService {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
similarity index 91%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
index 997ece7..828d87c 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.governance.api;
 
-public interface GreetingService {
+public interface DemoService2 {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
similarity index 92%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
index a4deb00..87ed741 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
@@ -17,11 +17,10 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.governance.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -34,5 +33,4 @@ public class DemoServiceImpl implements DemoService {
                 name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
-
 }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
similarity index 79%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
index a4deb00..31fa42b 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
@@ -17,22 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.governance.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService2;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
-public class DemoServiceImpl implements DemoService {
+public class DemoServiceImpl2 implements DemoService2 {
 
     @Override
     public String sayHello(String name) {
-        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " +
-                name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
+        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " + name +
+                ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
-
 }
diff --git a/dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/dubbo-routers-condition.yml
similarity index 71%
copy from dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/dubbo-routers-condition.yml
index 5cc28f7..1ee148d 100644
--- a/dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/dubbo-routers-condition.yml
@@ -17,6 +17,14 @@
 #
 #
 
-dubbo.application.name=demo-consumer
-dubbo.registry.address=nacos://localhost:8848
-dubbo.consumer.timeout=3000
+---
+scope: application
+force: true
+runtime: true
+enabled: true
+priority: 2
+key: governance-conditionrouter-consumer
+conditions:
+- interface=org.apache.dubbo.samples.governance.api.DemoService&method=sayHello=>address=*:20880
+- interface=org.apache.dubbo.samples.governance.api.DemoService2&method=sayHello=>address=*:20881
+...
\ No newline at end of file
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/log4j.properties
similarity index 92%
copy from dubbo-samples-nacos/src/main/resources/log4j.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/log4j.properties
index dcb78e2..f30fda0 100644
--- a/dubbo-samples-nacos/src/main/resources/log4j.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/log4j.properties
@@ -6,18 +6,19 @@
 #   The ASF licenses this file to You under the Apache License, Version 2.0
 #   (the "License"); you may not use this file except in compliance with
 #   the License.  You may obtain a copy of the License at
-#  
+#
 #       http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 #   Unless required by applicable law or agreed to in writing, software
 #   distributed under the License is distributed on an "AS IS" BASIS,
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-#  
 #
-
+#
+###set log levels###
 log4j.rootLogger=info, stdout
+###output to the console###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-consumer.xml
similarity index 76%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-consumer.xml
index 0c332a4..9226781 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-consumer.xml
@@ -25,17 +25,12 @@
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
     <context:property-placeholder/>
 
-    <dubbo:application name="governance-conditionrouter-provider"/>
+    <dubbo:application name="governance-conditionrouter-consumer"/>
 
     <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
-
     <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
-
-    <bean id="demoService2" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl2"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService2" ref="demoService2"/>
+    <dubbo:reference id="demoService" check="false" interface="org.apache.dubbo.samples.governance.api.DemoService"/>
+    <dubbo:reference id="demoService2" check="false" interface="org.apache.dubbo.samples.governance.api.DemoService2"/>
 </beans>
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
similarity index 97%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
index 0c332a4..fed3425 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-conditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
@@ -29,7 +29,7 @@
 
     <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
+    <dubbo:protocol port="${dubbo.port:-1}"/>
 
     <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/pom.xml
similarity index 94%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/pom.xml
index ecc2d60..8505897 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/pom.xml
@@ -26,12 +26,12 @@
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configcenter-xml</artifactId>
+    <artifactId>dubbo-samples-nacos-configcenter</artifactId>
 
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
@@ -53,6 +53,17 @@
 
         <dependency>
             <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-configcenter-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-dependencies-zookeeper</artifactId>
             <version>${dubbo.version}</version>
             <type>pom</type>
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicConsumer.java
similarity index 61%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicConsumer.java
index a4deb00..567d6e9 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicConsumer.java
@@ -17,22 +17,19 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
+package org.apache.dubbo.samples.configcenter;
 
-
-import org.apache.dubbo.rpc.RpcContext;
 import org.apache.dubbo.samples.configcenter.api.DemoService;
 
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-public class DemoServiceImpl implements DemoService {
+public class BasicConsumer {
 
-    @Override
-    public String sayHello(String name) {
-        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " +
-                name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
-        return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
+    public static void main(String[] args) {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/configcenter-consumer.xml");
+        context.start();
+        DemoService demoService = (DemoService) context.getBean("demoService");
+        String hello = demoService.sayHello("world");
+        System.out.println(hello);
     }
-
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicProvider.java
similarity index 58%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicProvider.java
index 98266bf..3ab3cc6 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/BasicProvider.java
@@ -17,20 +17,23 @@
  *
  */
 
-package org.apache.dubbo.samples.action;
+package org.apache.dubbo.samples.configcenter;
 
-import org.apache.dubbo.config.annotation.Reference;
-import org.apache.dubbo.samples.api.GreetingService;
-import org.springframework.stereotype.Component;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-@Component("annotatedConsumer")
-public class GreetingServiceConsumer {
+import java.util.concurrent.CountDownLatch;
 
-    @Reference
-    private GreetingService greetingService;
+public class BasicProvider {
 
-    public String doSayHello(String name) {
-        return greetingService.sayHello(name);
+    public static void main(String[] args) throws Exception {
+        new EmbeddedZooKeeper(2181, false).start();
+
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/configcenter-provider.xml");
+        context.registerShutdownHook();
+        context.start();
+
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
     }
 
 }
diff --git a/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/EmbeddedZooKeeper.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/EmbeddedZooKeeper.java
new file mode 100644
index 0000000..e2013f3
--- /dev/null
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/EmbeddedZooKeeper.java
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.samples.configcenter;
+
+import org.apache.zookeeper.server.ServerConfig;
+import org.apache.zookeeper.server.ZooKeeperServerMain;
+import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.SmartLifecycle;
+import org.springframework.util.ErrorHandler;
+import org.springframework.util.SocketUtils;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import java.util.Properties;
+import java.util.UUID;
+
+/**
+ * from: https://github.com/spring-projects/spring-xd/blob/v1.3.1.RELEASE/spring-xd-dirt/src/main/java/org/springframework/xd/dirt/zookeeper/ZooKeeperUtils.java
+ * <p>
+ * Helper class to start an embedded instance of standalone (non clustered) ZooKeeper.
+ * <p>
+ * NOTE: at least an external standalone server (if not an ensemble) are recommended, even for
+ * {@link org.springframework.xd.dirt.server.singlenode.SingleNodeApplication}
+ *
+ * @author Patrick Peralta
+ * @author Mark Fisher
+ * @author David Turanski
+ */
+public class EmbeddedZooKeeper implements SmartLifecycle {
+
+    /**
+     * Logger.
+     */
+    private static final Logger logger = LoggerFactory.getLogger(EmbeddedZooKeeper.class);
+
+    /**
+     * ZooKeeper client port. This will be determined dynamically upon startup.
+     */
+    private final int clientPort;
+
+    /**
+     * Whether to auto-start. Default is true.
+     */
+    private boolean autoStartup = true;
+
+    /**
+     * Lifecycle phase. Default is 0.
+     */
+    private int phase = 0;
+
+    /**
+     * Thread for running the ZooKeeper server.
+     */
+    private volatile Thread zkServerThread;
+
+    /**
+     * ZooKeeper server.
+     */
+    private volatile ZooKeeperServerMain zkServer;
+
+    /**
+     * {@link ErrorHandler} to be invoked if an Exception is thrown from the ZooKeeper server thread.
+     */
+    private ErrorHandler errorHandler;
+
+    private boolean daemon = true;
+
+    /**
+     * Construct an EmbeddedZooKeeper with a random port.
+     */
+    public EmbeddedZooKeeper() {
+        clientPort = SocketUtils.findAvailableTcpPort();
+    }
+
+    /**
+     * Construct an EmbeddedZooKeeper with the provided port.
+     *
+     * @param clientPort port for ZooKeeper server to bind to
+     */
+    public EmbeddedZooKeeper(int clientPort, boolean daemon) {
+        this.clientPort = clientPort;
+        this.daemon = daemon;
+    }
+
+    /**
+     * Returns the port that clients should use to connect to this embedded server.
+     *
+     * @return dynamically determined client port
+     */
+    public int getClientPort() {
+        return this.clientPort;
+    }
+
+    /**
+     * Specify whether to start automatically. Default is true.
+     *
+     * @param autoStartup whether to start automatically
+     */
+    public void setAutoStartup(boolean autoStartup) {
+        this.autoStartup = autoStartup;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isAutoStartup() {
+        return this.autoStartup;
+    }
+
+    /**
+     * Specify the lifecycle phase for the embedded server.
+     *
+     * @param phase the lifecycle phase
+     */
+    public void setPhase(int phase) {
+        this.phase = phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public int getPhase() {
+        return this.phase;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isRunning() {
+        return (zkServerThread != null);
+    }
+
+    /**
+     * Start the ZooKeeper server in a background thread.
+     * <p>
+     * Register an error handler via {@link #setErrorHandler} in order to handle
+     * any exceptions thrown during startup or execution.
+     */
+    @Override
+    public synchronized void start() {
+        if (zkServerThread == null) {
+            zkServerThread = new Thread(new ServerRunnable(), "ZooKeeper Server Starter");
+            zkServerThread.setDaemon(daemon);
+            zkServerThread.start();
+        }
+    }
+
+    /**
+     * Shutdown the ZooKeeper server.
+     */
+    @Override
+    public synchronized void stop() {
+        if (zkServerThread != null) {
+            // The shutdown method is protected...thus this hack to invoke it.
+            // This will log an exception on shutdown; see
+            // https://issues.apache.org/jira/browse/ZOOKEEPER-1873 for details.
+            try {
+                Method shutdown = ZooKeeperServerMain.class.getDeclaredMethod("shutdown");
+                shutdown.setAccessible(true);
+                shutdown.invoke(zkServer);
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+
+            // It is expected that the thread will exit after
+            // the server is shutdown; this will block until
+            // the shutdown is complete.
+            try {
+                zkServerThread.join(5000);
+                zkServerThread = null;
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                logger.warn("Interrupted while waiting for embedded ZooKeeper to exit");
+                // abandoning zk thread
+                zkServerThread = null;
+            }
+        }
+    }
+
+    /**
+     * Stop the server if running and invoke the callback when complete.
+     */
+    @Override
+    public void stop(Runnable callback) {
+        stop();
+        callback.run();
+    }
+
+    /**
+     * Provide an {@link ErrorHandler} to be invoked if an Exception is thrown from the ZooKeeper server thread. If none
+     * is provided, only error-level logging will occur.
+     *
+     * @param errorHandler the {@link ErrorHandler} to be invoked
+     */
+    public void setErrorHandler(ErrorHandler errorHandler) {
+        this.errorHandler = errorHandler;
+    }
+
+    /**
+     * Runnable implementation that starts the ZooKeeper server.
+     */
+    private class ServerRunnable implements Runnable {
+
+        @Override
+        public void run() {
+            try {
+                Properties properties = new Properties();
+                File file = new File(System.getProperty("java.io.tmpdir")
+                        + File.separator + UUID.randomUUID());
+                file.deleteOnExit();
+                properties.setProperty("dataDir", file.getAbsolutePath());
+                properties.setProperty("clientPort", String.valueOf(clientPort));
+
+                QuorumPeerConfig quorumPeerConfig = new QuorumPeerConfig();
+                quorumPeerConfig.parseProperties(properties);
+
+                zkServer = new ZooKeeperServerMain();
+                ServerConfig configuration = new ServerConfig();
+                configuration.readFrom(quorumPeerConfig);
+
+                zkServer.runFromConfig(configuration);
+            } catch (Exception e) {
+                if (errorHandler != null) {
+                    errorHandler.handleError(e);
+                } else {
+                    logger.error("Exception running embedded ZooKeeper", e);
+                }
+            }
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/api/DemoService.java
similarity index 91%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/api/DemoService.java
index 997ece7..b42cbc5 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/api/DemoService.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.configcenter.api;
 
-public interface GreetingService {
+public interface DemoService {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
similarity index 99%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
index a4deb00..62bd159 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
@@ -19,7 +19,6 @@
 
 package org.apache.dubbo.samples.configcenter.impl;
 
-
 import org.apache.dubbo.rpc.RpcContext;
 import org.apache.dubbo.samples.configcenter.api.DemoService;
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/config-center.properties
similarity index 88%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/config-center.properties
index 3b8c65d..6230f4a 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/resources/config-center.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/config-center.properties
@@ -13,9 +13,8 @@
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
 # Add the following global external properties to `/dubbo/config/dubbo/dubbo.properties`
-dubbo.registry.address=zookeeper://127.0.0.1:2181
-dubbo.protocol.port=20880
-dubbo.metadataReport.address=zookeeper://127.0.0.1:2181
+dubbo.registry.address=nacos://127.0.0.1:8848
+dubbo.protocol.port=-1
 dubbo.registry.simplified=true
 # Optional. Add the following application(Consumer) specific external properties
 # to `/dubbo/config/configcenter-consumer/dubbo.properties`
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/log4j.properties
similarity index 92%
copy from dubbo-samples-nacos/src/main/resources/log4j.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/log4j.properties
index dcb78e2..f30fda0 100644
--- a/dubbo-samples-nacos/src/main/resources/log4j.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/log4j.properties
@@ -6,18 +6,19 @@
 #   The ASF licenses this file to You under the Apache License, Version 2.0
 #   (the "License"); you may not use this file except in compliance with
 #   the License.  You may obtain a copy of the License at
-#  
+#
 #       http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 #   Unless required by applicable law or agreed to in writing, software
 #   distributed under the License is distributed on an "AS IS" BASIS,
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-#  
 #
-
+#
+###set log levels###
 log4j.rootLogger=info, stdout
+###output to the console###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-consumer.xml
similarity index 65%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-consumer.xml
index 0c332a4..cb13e9d 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-consumer.xml
@@ -21,21 +21,15 @@
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
        xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
-       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
-    <context:property-placeholder/>
-
-    <dubbo:application name="governance-conditionrouter-provider"/>
 
-    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <context:property-placeholder/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
+    <dubbo:application name="configcenter-consumer"/>
 
-    <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center highest-priority="false" address="nacos://${nacos.address:127.0.0.1}:8848"/>
 
-    <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
+    <dubbo:reference id="demoService" interface="org.apache.dubbo.samples.configcenter.api.DemoService"/>
 
-    <bean id="demoService2" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl2"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService2" ref="demoService2"/>
 </beans>
diff --git a/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-provider.xml
new file mode 100644
index 0000000..691af59
--- /dev/null
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/main/resources/spring/configcenter-provider.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://dubbo.apache.org/schema/dubbo"
+       xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
+       http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+
+    <context:property-placeholder/>
+    <dubbo:application name="configcenter-provider"/>
+    <dubbo:config-center address="nacos://${nacos.address:127.0.0.1}:8848"/>
+
+    <bean id="demoService" class="org.apache.dubbo.samples.configcenter.impl.DemoServiceImpl"/>
+    <dubbo:service interface="org.apache.dubbo.samples.configcenter.api.DemoService" ref="demoService"/>
+</beans>
diff --git a/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/test/java/org/apache/dubbo/samples/configcenter/DemoServiceIT.java b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/test/java/org/apache/dubbo/samples/configcenter/DemoServiceIT.java
new file mode 100644
index 0000000..ccaf83f
--- /dev/null
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-configcenter/src/test/java/org/apache/dubbo/samples/configcenter/DemoServiceIT.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.samples.configcenter;
+
+import org.apache.dubbo.samples.configcenter.api.DemoService;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "classpath*:spring/configcenter-consumer.xml")
+public class DemoServiceIT {
+    @Autowired
+    @Qualifier("demoService")
+    private DemoService demoService;
+
+    @Test
+    public void test() throws Exception {
+        Assert.assertTrue(demoService.sayHello("world").startsWith("Hello world"));
+    }
+}
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml b/dubbo-samples-nacos/dubbo-samples-nacos-override/pom.xml
similarity index 89%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/pom.xml
index ecc2d60..2a5ddba 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/pom.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/pom.xml
@@ -18,20 +18,20 @@
   ~
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <groupId>org.apache.dubbo</groupId>
     <version>1.0-SNAPSHOT</version>
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configcenter-xml</artifactId>
+    <artifactId>dubbo-samples-nacos-override</artifactId>
 
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
@@ -41,7 +41,7 @@
         <image.name>${artifactId}:${dubbo.version}</image.name>
         <dubbo.port>20880</dubbo.port>
         <zookeeper.port>2181</zookeeper.port>
-        <main-class>org.apache.dubbo.samples.configcenter.BasicProvider</main-class>
+        <main-class>org.apache.dubbo.samples.governance.BasicProvider</main-class>
     </properties>
 
     <dependencies>
@@ -53,6 +53,18 @@
 
         <dependency>
             <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-configcenter-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-dependencies-zookeeper</artifactId>
             <version>${dubbo.version}</version>
             <type>pom</type>
@@ -108,10 +120,6 @@
                             </to>
                             <container>
                                 <mainClass>${main-class}</mainClass>
-                                <ports>
-                                    <port>${dubbo.port}</port>
-                                    <port>${zookeeper.port}</port>
-                                </ports>
                                 <environment>
                                     <DUBBO_IP_TO_REGISTRY>${dubbo-local-address}</DUBBO_IP_TO_REGISTRY>
                                 </environment>
@@ -137,11 +145,18 @@
                         <configuration>
                             <images>
                                 <image>
+                                    <name>zookeeper:latest</name>
+                                    <run>
+                                        <ports>
+                                            <port>${zookeeper.port}:${zookeeper.port}</port>
+                                        </ports>
+                                    </run>
+                                </image>
+                                <image>
                                     <name>${image.name}</name>
                                     <run>
                                         <ports>
                                             <port>${dubbo.port}:${dubbo.port}</port>
-                                            <port>${zookeeper.port}:${zookeeper.port}</port>
                                         </ports>
                                         <wait>
                                             <log>dubbo service started</log>
@@ -207,5 +222,4 @@
             </plugin>
         </plugins>
     </build>
-
 </project>
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
similarity index 59%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
index 98266bf..d922f93 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
@@ -17,20 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.action;
+package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.config.annotation.Reference;
-import org.apache.dubbo.samples.api.GreetingService;
-import org.springframework.stereotype.Component;
+import org.apache.dubbo.samples.governance.api.DemoService;
 
-@Component("annotatedConsumer")
-public class GreetingServiceConsumer {
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-    @Reference
-    private GreetingService greetingService;
+public class BasicConsumer {
 
-    public String doSayHello(String name) {
-        return greetingService.sayHello(name);
-    }
+    public static void main(String[] args) {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
+        context.start();
 
+        DemoService demoService = context.getBean("demoService", DemoService.class);
+        String hello = demoService.sayHello("world", 5000);
+        System.out.println(hello);
+    }
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
similarity index 63%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
index 98266bf..033bf62 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
@@ -17,20 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.action;
+package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.config.annotation.Reference;
-import org.apache.dubbo.samples.api.GreetingService;
-import org.springframework.stereotype.Component;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-@Component("annotatedConsumer")
-public class GreetingServiceConsumer {
+import java.util.concurrent.CountDownLatch;
 
-    @Reference
-    private GreetingService greetingService;
+public class BasicProvider {
 
-    public String doSayHello(String name) {
-        return greetingService.sayHello(name);
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
+        context.start();
+
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
     }
 
 }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
similarity index 86%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
index 997ece7..957c601 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
@@ -17,10 +17,10 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.governance.api;
 
-public interface GreetingService {
+public interface DemoService {
 
-    String sayHello(String name);
+    String sayHello(String name, long millis);
 
 }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
similarity index 71%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
index a4deb00..8be2656 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
@@ -17,22 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.governance.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
-
-import java.text.SimpleDateFormat;
-import java.util.Date;
+import org.apache.dubbo.samples.governance.api.DemoService;
 
 public class DemoServiceImpl implements DemoService {
 
     @Override
-    public String sayHello(String name) {
-        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " +
-                name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
+    public String sayHello(String name, long millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
-
 }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/dubbo-override.yml
similarity index 71%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/dubbo-override.yml
index ed0967a..2d1b0f0 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-multi-registries/src/main/resources/spring/dubbo-provider.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/dubbo-override.yml
@@ -16,6 +16,15 @@
 #   limitations under the License.
 #
 #
-dubbo.application.name=configcenter-multi-registries-provider
-dubbo.config-center.address=zookeeper://${zookeeper.address:127.0.0.1}:2181
-dubbo.configCenter.configFile=dubbo.properties
+# All Consumers that consume the service org.apache.dubbo.samples.governance.api.DemoService will increase the timeout value to 6000
+---
+configVersion: v2.7
+scope: service
+key: org.apache.dubbo.samples.governance.api.DemoService
+enabled: true
+configs:
+- addresses: [0.0.0.0]
+  side: consumer
+  parameters:
+    timeout: 6000
+...
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/log4j.properties
similarity index 92%
copy from dubbo-samples-nacos/src/main/resources/log4j.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/log4j.properties
index dcb78e2..f30fda0 100644
--- a/dubbo-samples-nacos/src/main/resources/log4j.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/log4j.properties
@@ -6,18 +6,19 @@
 #   The ASF licenses this file to You under the Apache License, Version 2.0
 #   (the "License"); you may not use this file except in compliance with
 #   the License.  You may obtain a copy of the License at
-#  
+#
 #       http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 #   Unless required by applicable law or agreed to in writing, software
 #   distributed under the License is distributed on an "AS IS" BASIS,
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-#  
 #
-
+#
+###set log levels###
 log4j.rootLogger=info, stdout
+###output to the console###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-consumer.xml
similarity index 68%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-consumer.xml
index 0c332a4..e871db4 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-consumer.xml
@@ -25,17 +25,11 @@
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
     <context:property-placeholder/>
 
-    <dubbo:application name="governance-conditionrouter-provider"/>
+    <dubbo:application name="governance-serviceoverride-consumer"/>
 
-    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center address="nacos://${nacos.address:127.0.0.1}:8848"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
+    <dubbo:reference timeout="1000" id="demoService" check="false"
+                     interface="org.apache.dubbo.samples.governance.api.DemoService"/>
 
-    <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
-
-    <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
-
-    <bean id="demoService2" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl2"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService2" ref="demoService2"/>
 </beans>
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-provider.xml
similarity index 77%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-provider.xml
index 0c332a4..fa3166b 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-override/src/main/resources/spring/dubbo-demo-provider.xml
@@ -25,17 +25,13 @@
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
     <context:property-placeholder/>
 
-    <dubbo:application name="governance-conditionrouter-provider"/>
+    <dubbo:application name="governance-serviceoverride-provider"/>
 
-    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center address="nacos://${nacos.address:127.0.0.1}:8848"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
-
-    <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:protocol name="dubbo" port="-1"/>
 
     <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
 
-    <bean id="demoService2" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl2"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService2" ref="demoService2"/>
+    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
 </beans>
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml b/dubbo-samples-nacos/dubbo-samples-nacos-registry/pom.xml
similarity index 94%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-registry/pom.xml
index e82713c..7e18e8c 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-registry/pom.xml
@@ -26,12 +26,12 @@
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configconditionrouter</artifactId>
+    <artifactId>dubbo-samples-nacos-registry</artifactId>
     
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
@@ -42,7 +42,7 @@
         <dubbo.port.1>20880</dubbo.port.1>
         <dubbo.port.2>20881</dubbo.port.2>
         <zookeeper.port>2181</zookeeper.port>
-        <main-class>org.apache.dubbo.samples.governance.BasicProvider</main-class>
+        <main-class>org.apache.dubbo.samples.ProviderBootstrap</main-class>
     </properties>
 
     <dependencies>
@@ -54,6 +54,17 @@
 
         <dependency>
             <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-configcenter-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-dependencies-zookeeper</artifactId>
             <version>${dubbo.version}</version>
             <type>pom</type>
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ConsumerBootstrap.java b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/ConsumerBootstrap.java
similarity index 100%
rename from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ConsumerBootstrap.java
rename to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/ConsumerBootstrap.java
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
similarity index 100%
rename from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
rename to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/ProviderBootstrap.java
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
similarity index 100%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
similarity index 100%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java
similarity index 100%
rename from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java
rename to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/java/org/apache/dubbo/samples/impl/AnnotatedGreetingService.java
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/log4j.properties
similarity index 100%
copy from dubbo-samples-nacos/src/main/resources/log4j.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/log4j.properties
diff --git a/dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/spring/dubbo-consumer.properties
similarity index 100%
copy from dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties
copy to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/spring/dubbo-consumer.properties
diff --git a/dubbo-samples-nacos/src/main/resources/spring/dubbo-provider.properties b/dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/spring/dubbo-provider.properties
similarity index 100%
rename from dubbo-samples-nacos/src/main/resources/spring/dubbo-provider.properties
rename to dubbo-samples-nacos/dubbo-samples-nacos-registry/src/main/resources/spring/dubbo-provider.properties
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/pom.xml
similarity index 95%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/pom.xml
index e82713c..e2e1ada 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/pom.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/pom.xml
@@ -26,12 +26,11 @@
 
     <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>dubbo-samples-configconditionrouter</artifactId>
-    
+    <artifactId>dubbo-samples-nacos-tagrouter</artifactId>
     <properties>
         <source.level>1.8</source.level>
         <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
+        <dubbo.version>2.7.3-SNAPSHOT</dubbo.version>
         <spring.version>4.3.16.RELEASE</spring.version>
         <junit.version>4.12</junit.version>
         <docker-maven-plugin.version>0.30.0</docker-maven-plugin.version>
@@ -54,6 +53,18 @@
 
         <dependency>
             <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-configcenter-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-registry-nacos</artifactId>
+            <version>${dubbo.version}</version>
+        </dependency>
+
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-dependencies-zookeeper</artifactId>
             <version>${dubbo.version}</version>
             <type>pom</type>
diff --git a/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
new file mode 100644
index 0000000..09f433d
--- /dev/null
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicConsumer.java
@@ -0,0 +1,60 @@
+/*
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements.  See the NOTICE file distributed with
+ *   this work for additional information regarding copyright ownership.
+ *   The ASF licenses this file to You under the Apache License, Version 2.0
+ *   (the "License"); you may not use this file except in compliance with
+ *   the License.  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ */
+
+package org.apache.dubbo.samples.governance;
+
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.rpc.cluster.Constants;
+import org.apache.dubbo.samples.governance.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService2;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+import static org.apache.dubbo.rpc.Constants.FORCE_USE_TAG;
+
+public class BasicConsumer {
+
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-consumer.xml");
+        context.start();
+        DemoService demoService = context.getBean("demoService", DemoService.class);
+        DemoService2 demoService2 = context.getBean("demoService2", DemoService2.class);
+
+        while (true) {
+            try {
+                RpcContext.getContext().setAttachment(Constants.TAG_KEY, "tag1");
+                String hello = demoService.sayHello("world");
+                System.out.println(hello);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+            try {
+                RpcContext.getContext().setAttachment(FORCE_USE_TAG, "true");
+                RpcContext.getContext().setAttachment(Constants.TAG_KEY, "tag2");
+                String hello2 = demoService2.sayHello("world again");
+                System.out.println(hello2);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+            Thread.sleep(1000);
+        }
+    }
+}
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
similarity index 63%
rename from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
rename to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
index 98266bf..033bf62 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/action/GreetingServiceConsumer.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/BasicProvider.java
@@ -17,20 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.action;
+package org.apache.dubbo.samples.governance;
 
-import org.apache.dubbo.config.annotation.Reference;
-import org.apache.dubbo.samples.api.GreetingService;
-import org.springframework.stereotype.Component;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-@Component("annotatedConsumer")
-public class GreetingServiceConsumer {
+import java.util.concurrent.CountDownLatch;
 
-    @Reference
-    private GreetingService greetingService;
+public class BasicProvider {
 
-    public String doSayHello(String name) {
-        return greetingService.sayHello(name);
+    public static void main(String[] args) throws Exception {
+        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("spring/dubbo-demo-provider.xml");
+        context.start();
+
+        System.out.println("dubbo service started");
+        new CountDownLatch(1).await();
     }
 
 }
diff --git a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
similarity index 94%
copy from dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
index 68dffad..53d4a2d 100644
--- a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/RuleUtil.java
@@ -44,7 +44,7 @@ public class RuleUtil {
 
     public static void generateRule() {
         try (InputStream yamlStream = RuleUtil.class.getResourceAsStream("/dubbo-routers-tag.yml")) {
-            String path = "/dubbo/config/governance-tagrouter-provider/tag-router";
+            String path = "/dubbo/config/dubbo/governance-tagrouter-provider.tag-router";
             if (client.checkExists().forPath(path) == null) {
                 client.create().creatingParentsIfNeeded().forPath(path);
             }
@@ -55,7 +55,7 @@ public class RuleUtil {
     }
 
     public static void deleteRule() throws Exception {
-        String path = "/dubbo/config/governance-tagrouter-provider/tag-router";
+        String path = "/dubbo/config/dubbo/governance-tagrouter-provider.tag-router";
         if (client.checkExists().forPath(path) == null) {
             client.create().creatingParentsIfNeeded().forPath(path);
         }
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
similarity index 91%
copy from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
index 997ece7..bde5f6e 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.governance.api;
 
-public interface GreetingService {
+public interface DemoService {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
similarity index 91%
rename from dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
rename to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
index 997ece7..828d87c 100644
--- a/dubbo-samples-nacos/src/main/java/org/apache/dubbo/samples/api/GreetingService.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/api/DemoService2.java
@@ -17,9 +17,9 @@
  *
  */
 
-package org.apache.dubbo.samples.api;
+package org.apache.dubbo.samples.governance.api;
 
-public interface GreetingService {
+public interface DemoService2 {
 
     String sayHello(String name);
 
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
similarity index 92%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
index a4deb00..87ed741 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl.java
@@ -17,11 +17,10 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.governance.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -34,5 +33,4 @@ public class DemoServiceImpl implements DemoService {
                 name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
-
 }
diff --git a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
similarity index 79%
copy from dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
index a4deb00..31fa42b 100644
--- a/dubbo-samples-configcenter/dubbo-samples-configcenter-xml/src/main/java/org/apache/dubbo/samples/configcenter/impl/DemoServiceImpl.java
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/java/org/apache/dubbo/samples/governance/impl/DemoServiceImpl2.java
@@ -17,22 +17,20 @@
  *
  */
 
-package org.apache.dubbo.samples.configcenter.impl;
-
+package org.apache.dubbo.samples.governance.impl;
 
 import org.apache.dubbo.rpc.RpcContext;
-import org.apache.dubbo.samples.configcenter.api.DemoService;
+import org.apache.dubbo.samples.governance.api.DemoService2;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
-public class DemoServiceImpl implements DemoService {
+public class DemoServiceImpl2 implements DemoService2 {
 
     @Override
     public String sayHello(String name) {
-        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " +
-                name + ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
+        System.out.println("[" + new SimpleDateFormat("HH:mm:ss").format(new Date()) + "] Hello " + name +
+                ", request from consumer: " + RpcContext.getContext().getRemoteAddress());
         return "Hello " + name + ", response from provider: " + RpcContext.getContext().getLocalAddress();
     }
-
 }
diff --git a/dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/dubbo-routers-tag.yml
similarity index 81%
rename from dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties
rename to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/dubbo-routers-tag.yml
index 5cc28f7..89a01f9 100644
--- a/dubbo-samples-nacos/src/main/resources/spring/dubbo-consumer.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/dubbo-routers-tag.yml
@@ -17,6 +17,15 @@
 #
 #
 
-dubbo.application.name=demo-consumer
-dubbo.registry.address=nacos://localhost:8848
-dubbo.consumer.timeout=3000
+---
+force: false
+runtime: true
+enabled: true
+priority: 1
+key: governance-tagrouter-provider
+tags:
+- name: tag1
+  addresses: ["*.*.*.*:20881"]
+- name: tag2
+  addresses: ["*.*.*.*:20880"]
+...
diff --git a/dubbo-samples-nacos/src/main/resources/log4j.properties b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/log4j.properties
similarity index 92%
rename from dubbo-samples-nacos/src/main/resources/log4j.properties
rename to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/log4j.properties
index dcb78e2..f30fda0 100644
--- a/dubbo-samples-nacos/src/main/resources/log4j.properties
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/log4j.properties
@@ -6,18 +6,19 @@
 #   The ASF licenses this file to You under the Apache License, Version 2.0
 #   (the "License"); you may not use this file except in compliance with
 #   the License.  You may obtain a copy of the License at
-#  
+#
 #       http://www.apache.org/licenses/LICENSE-2.0
-#  
+#
 #   Unless required by applicable law or agreed to in writing, software
 #   distributed under the License is distributed on an "AS IS" BASIS,
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-#  
 #
-
+#
+###set log levels###
 log4j.rootLogger=info, stdout
+###output to the console###
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.Target=System.out
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
diff --git a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-consumer.xml
similarity index 68%
copy from dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-consumer.xml
index 0c332a4..c18c885 100644
--- a/dubbo-samples-governance/dubbo-samples-configconditionrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-consumer.xml
@@ -25,17 +25,11 @@
        http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
     <context:property-placeholder/>
 
-    <dubbo:application name="governance-conditionrouter-provider"/>
+    <dubbo:application name="governance-tagrouter-consumer"/>
 
-    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center highest-priority="true" address="nacos://${nacos.address:127.0.0.1}:8848"/>
 
-    <dubbo:protocol port="${dubbo.port:20880}"/>
+    <dubbo:reference id="demoService" check="false" interface="org.apache.dubbo.samples.governance.api.DemoService"/>
+    <dubbo:reference id="demoService2" check="false" interface="org.apache.dubbo.samples.governance.api.DemoService2"/>
 
-    <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
-
-    <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
-
-    <bean id="demoService2" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl2"/>
-    <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService2" ref="demoService2"/>
 </beans>
diff --git a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
similarity index 87%
copy from dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
copy to dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
index f0a7b10..df375b1 100644
--- a/dubbo-samples-governance/dubbo-samples-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/main/resources/spring/dubbo-demo-provider.xml
@@ -27,11 +27,9 @@
 
     <dubbo:application name="governance-tagrouter-provider"/>
 
-    <dubbo:registry address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:protocol name="dubbo" port="${dubbo.port:-1}" heartbeat="10000"/>
 
-    <dubbo:protocol name="dubbo" port="${dubbo.port:20880}" heartbeat="10000"/>
-
-    <dubbo:config-center highest-priority="false" address="zookeeper://${zookeeper.address:127.0.0.1}:2181"/>
+    <dubbo:config-center highest-priority="true" address="nacos://${nacos.address:127.0.0.1}:8848"/>
 
     <bean id="demoService" class="org.apache.dubbo.samples.governance.impl.DemoServiceImpl"/>
     <dubbo:service interface="org.apache.dubbo.samples.governance.api.DemoService" ref="demoService"/>
diff --git a/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/test/java/org/apache/dubbo/samples/governance/DemoServiceIT.java b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/test/java/org/apache/dubbo/samples/governance/DemoServiceIT.java
new file mode 100644
index 0000000..ff66e5e
--- /dev/null
+++ b/dubbo-samples-nacos/dubbo-samples-nacos-tagrouter/src/test/java/org/apache/dubbo/samples/governance/DemoServiceIT.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.samples.governance;
+
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.rpc.RpcException;
+import org.apache.dubbo.rpc.cluster.Constants;
+import org.apache.dubbo.samples.governance.api.DemoService;
+
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import static org.apache.dubbo.rpc.Constants.FORCE_USE_TAG;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = {"classpath:/spring/dubbo-demo-consumer.xml"})
+public class DemoServiceIT {
+    @Autowired
+    @Qualifier("demoService")
+    private DemoService demoService;
+
+    @BeforeClass
+    public static void setUp() throws Exception {
+        RuleUtil.initClient();
+        RuleUtil.generateRule();
+        Thread.sleep(1000);
+    }
+
+    @Test
+    public void testDemoService1() throws Exception {
+        for (int i = 0; i < 10; i++) {
+            RpcContext.getContext().setAttachment(FORCE_USE_TAG, "true");
+            RpcContext.getContext().setAttachment(Constants.TAG_KEY, "tag1");
+            Assert.assertTrue(demoService.sayHello("world").contains("20881"));
+        }
+    }
+
+    @Test
+    public void testDemoService2() throws Exception {
+        for (int i = 0; i < 10; i++) {
+            RpcContext.getContext().setAttachment(FORCE_USE_TAG, "true");
+            RpcContext.getContext().setAttachment(Constants.TAG_KEY, "tag2");
+            Assert.assertTrue(demoService.sayHello("world").contains("20880"));
+        }
+    }
+
+    @Test(expected = RpcException.class)
+    public void testDemoService3() throws Exception {
+        RpcContext.getContext().setAttachment(Constants.TAG_KEY, "tag3");
+        demoService.sayHello("world");
+    }
+}
diff --git a/dubbo-samples-nacos/pom.xml b/dubbo-samples-nacos/pom.xml
index 5c26848..cad31c3 100644
--- a/dubbo-samples-nacos/pom.xml
+++ b/dubbo-samples-nacos/pom.xml
@@ -1,60 +1,39 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~
+  ~   Licensed to the Apache Software Foundation (ASF) under one or more
+  ~   contributor license agreements.  See the NOTICE file distributed with
+  ~   this work for additional information regarding copyright ownership.
+  ~   The ASF licenses this file to You under the Apache License, Version 2.0
+  ~   (the "License"); you may not use this file except in compliance with
+  ~   the License.  You may obtain a copy of the License at
+  ~
+  ~       http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~   Unless required by applicable law or agreed to in writing, software
+  ~   distributed under the License is distributed on an "AS IS" BASIS,
+  ~   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~   See the License for the specific language governing permissions and
+  ~   limitations under the License.
+  ~
+  -->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>dubbo-samples-all</artifactId>
-        <groupId>org.apache.dubbo</groupId>
-        <version>1.0-SNAPSHOT</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.apache.dubbo</groupId>
+    <version>1.0-SNAPSHOT</version>
 
+    <modelVersion>4.0.0</modelVersion>
+    <packaging>pom</packaging>
     <artifactId>dubbo-samples-nacos</artifactId>
 
-    <properties>
-        <source.level>1.8</source.level>
-        <target.level>1.8</target.level>
-        <dubbo.version>2.7.2</dubbo.version>
-    </properties>
-
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.apache.dubbo</groupId>
-                <artifactId>dubbo-dependencies-bom</artifactId>
-                <version>${dubbo.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo</artifactId>
-            <version>${dubbo.version}</version>
-        </dependency>
-
-        <dependency>
-            <groupId>com.alibaba.nacos</groupId>
-            <artifactId>nacos-client</artifactId>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>${source.level}</source>
-                    <target>${target.level}</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
+    <modules>
+        <module>dubbo-samples-nacos-override</module>
+        <module>dubbo-samples-nacos-conditionrouter</module>
+        <module>dubbo-samples-nacos-configcenter</module>
+        <module>dubbo-samples-nacos-tagrouter</module>
+        <module>dubbo-samples-nacos-registry</module>
+    </modules>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/pom.xml b/pom.xml
index 7173797..c8882af 100644
--- a/pom.xml
+++ b/pom.xml
@@ -72,6 +72,7 @@
         <module>dubbo-samples-edas</module>
         <module>dubbo-samples-nacos</module>
         <module>dubbo-samples-metrics</module>
+        <module>dubbo-samples-environment-keys</module>
     </modules>
     <properties>
         <!-- Test libs -->


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