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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2020/03/05 12:34:18 UTC
[GitHub] [servicecomb-java-chassis] zhufeizzz opened a new issue #1622: 跟SpringMVC共用的时候会存在路径冲突
zhufeizzz opened a new issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622
```
@RestSchema(schemaId = "RepeatServiceA")
@RequestMapping(path = "/rest/repeat-a")
public class RepeatService
@RestController("RepeatServiceB")
@RequestMapping(path = "/rest/repeat-a")
public class RepeatService {
```
比如下面这两种，因路径冲突SpringMVC会报“Ambiguous mapping”异常。即使CSE和SpringMVC分别声明了独立的根路径。这种问题有什么解决建议吗？
```
spring:
mvc:
servlet:
path: /ui
servicecomb:
servlet:
urlPattern: /cse/*
```
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604197570
按照你说的， 应该是 spring MVC 自己加载了下面的两个类作为 Controller。 我发的配置项只控制 java-chassis 不加载 `@RestController`。 需要像个办法让 spring MVC 不加载 `@RestSchema` , 否则只能避免名字冲突了。
```
@RestSchema(schemaId = "RepeatServiceA")
@RequestMapping(path = "/rest/repeat-a")
public class RepeatService
@RestController("RepeatServiceB")
@RequestMapping(path = "/rest/repeat-a")
public class RepeatService
```
BWT: 实际应用场景需要 RepeatServiceA 和 RepeatServiceB 有一样的 url 吗？ 感觉这个是个错误。 是不是 "/rest/repeat-b"?
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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604177277
这个异常没碰到过，可能需要具体看看是什么情况下，哪个组件抛出来的。 也可以加上`servicecomb.provider.rest.scanRestController` 试试。
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604177277
这个异常没碰到过，可能需要具体看看是申请情况下，哪个组件抛出来的。 也加上`servicecomb.provider.rest.scanRestController` 试试。
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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604177277
这个异常没碰到过，可能需要具体看看是什么情况下，哪个组件抛出来的。 也加上`servicecomb.provider.rest.scanRestController` 试试。
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[GitHub] [servicecomb-java-chassis] zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-595207392
SpringMVC本身可以根据Bean名称前缀进行排除，CSE是不是可以考虑生成Bean的时候按这个规范来生成啊
`org.springframework.web.servlet.handler.AbstractHandlerMethodMapping#SCOPED_TARGET_NAME_PREFIX`
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[GitHub] [servicecomb-java-chassis] zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604192165
@liubao68 你说的这个配置已经添加，问题的原因是SpringMVC会扫描到RestSchema类，并通过此方法判断`org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#isHandler`，因为用到的RequestMapping注解，所以被扫描到。
```
protected boolean isHandler(Class<?> beanType) {
return (AnnotatedElementUtils.hasAnnotation(beanType, Controller.class) ||
AnnotatedElementUtils.hasAnnotation(beanType, RequestMapping.class));
}
```
完整错误日志如下：
```
[2020-03-26 10:20:35,366]-[]-[]-[main]-[org.springframework.boot.SpringApplication.reportFailure(SpringApplication.java:826)]-[ERROR] Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'RepeatServiceA' method
com.huawei.mateinfo.demo.repeat.controller.a.RepeatService#hello()
to {GET /rest/repeat-a/hello}: There is already 'repeatService' bean method
com.huawei.mateinfo.demo.repeat.api.a.RepeatService#hello() mapped.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1803) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at com.huawei.mateinfo.demo.SDKDemoApplication.main(SDKDemoApplication.java:16) [classes/:?]
Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'RepeatServiceA' method
com.huawei.mateinfo.demo.repeat.controller.a.RepeatService#hello()
to {GET /rest/repeat-a/hello}: There is already 'repeatService' bean method
com.huawei.mateinfo.demo.repeat.api.a.RepeatService#hello() mapped.
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.validateMethodMapping(AbstractHandlerMethodMapping.java:633) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping$MappingRegistry.register(AbstractHandlerMethodMapping.java:600) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod(AbstractHandlerMethodMapping.java:318) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.registerHandlerMethod(RequestMappingHandlerMapping.java:350) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.registerHandlerMethod(RequestMappingHandlerMapping.java:67) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lambda$detectHandlerMethods$1(AbstractHandlerMethodMapping.java:288) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684) ~[?:1.8.0_211]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods(AbstractHandlerMethodMapping.java:286) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.processCandidateBean(AbstractHandlerMethodMapping.java:258) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:217) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:205) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:171) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1862) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1799) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
... 15 more
```
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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604177277
这个异常没碰到过，可能需要具体看看是什么情况下，哪个组件抛出来的， 可以提供下详细的错误堆栈。 也可以加上`servicecomb.provider.rest.scanRestController=false` 试试。
----------------------------------------------------------------
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[GitHub] [servicecomb-java-chassis] zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
zhufeizzz commented on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604199014
@liubao68 因为CSE和SpringMVC是分别编写的，很难控制命名冲突，比如同样一个用户创建的接口，CSE和SpringMVC可能都叫/user/create，目前的规避措施是SpringMVC全都加上一层前缀，如：/web/user/create，但体验就比较差了。
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[GitHub] [servicecomb-java-chassis] zhufeizzz removed a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
zhufeizzz removed a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-595207392
SpringMVC本身可以根据Bean名称前缀进行排除，CSE是不是可以考虑生成Bean的时候按这个规范来生成啊
`org.springframework.web.servlet.handler.AbstractHandlerMethodMapping#SCOPED_TARGET_NAME_PREFIX`
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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #1622: 跟SpringMVC共用的时候会存在路径冲突
URL: https://github.com/apache/servicecomb-java-chassis/issues/1622#issuecomment-604177277
这个异常没碰到过，可能需要具体看看是什么情况下，哪个组件抛出来的， 可以提供下详细的错误堆栈。 也可以加上`servicecomb.provider.rest.scanRestController` 试试。
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