[GitHub] [rocketmq] Oliverwqcwrw commented on a diff in pull request #5895: [ISSUE #5896] feat:add pop consumer example

["Oliverwqcwrw (via GitHub)" <gi...@apache.org>]

Oliverwqcwrw commented on code in PR #5895:
URL: https://github.com/apache/rocketmq/pull/5895#discussion_r1093169596


##########
example/src/main/java/org/apache/rocketmq/example/simple/PopConsumer.java:
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@@ -0,0 +1,67 @@
+/*
+ * 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.rocketmq.example.simple;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
+import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
+import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
+import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
+import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
+import org.apache.rocketmq.common.message.MessageExt;
+import org.apache.rocketmq.common.message.MessageRequestMode;
+import org.apache.rocketmq.remoting.protocol.route.BrokerData;
+import org.apache.rocketmq.tools.admin.DefaultMQAdminExt;
+
+public class PopConsumer {
+    public static final String TOPIC = "TopicTest";
+    public static final String CONSUMER_GROUP = "CID_JODIE_1";
+    public static void main(String[] args) throws Exception {
+        switchPop();
+        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer(CONSUMER_GROUP);
+        consumer.subscribe(TOPIC, "*");
+        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
+        //wrong time format 2017_0422_221800
+        consumer.setConsumeTimestamp("20181109221800");
+        consumer.setNamesrvAddr("127.0.0.1:9876");

Review Comment:
   I notice that this line doesn't exist in the latest code,
   how about adding it to avoid user doesn't set environment variable



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