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导入spring boot devtool依赖导致dubbo注册问题 #214

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yoqu opened this issue Mar 1, 2017 · 2 comments
Closed

导入spring boot devtool依赖导致dubbo注册问题 #214

yoqu opened this issue Mar 1, 2017 · 2 comments

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@yoqu
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yoqu commented Mar 1, 2017

在maven中导入spring devtools依赖后出现的没有，没有导入情况下正常。

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
		</dependency>
  1. 当server和client都导入该包时，启动client端访问zoomkeeper报异常。
    异常为：
java.lang.IllegalArgumentException: interface com.chixunsoft.match.service.MemberService is not visible from class loader
	at com.alibaba.dubbo.common.bytecode.Proxy.getProxy(Proxy.java:98) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.common.bytecode.Proxy.getProxy(Proxy.java:67) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:35) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.proxy.AbstractProxyFactory.getProxy(AbstractProxyFactory.java:49) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.proxy.wrapper.StubProxyFactoryWrapper.getProxy(StubProxyFactoryWrapper.java:60) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.ProxyFactory$Adpative.getProxy(ProxyFactory$Adpative.java) ~[na:2.5.3]
	at com.alibaba.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:426) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:300) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:138) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.config.spring.AnnotationBean.refer(AnnotationBean.java:302) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.config.spring.AnnotationBean.postProcessBeforeInitialization(AnnotationBean.java:233) ~[dubbo-2.5.3.jar:2.5.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1575) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:751) [spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) [spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) [spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]

2.当server导入该依赖，client不导入时，在client方法调用server时，会报强制类型转换异常，实际类型都是一致的，异常：

com.alibaba.dubbo.rpc.RpcException: Failed to invoke remote proxy method login to registry://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=dubbo-provider&dubbo=2.5.3&export=dubbo%3A%2F%2F192.168.0.100%3A20880%2Fcom.chixunsoft.match.service.MemberService%3Fanyhost%3Dtrue%26application%3Ddubbo-provider%26dubbo%3D2.5.3%26interface%3Dcom.chixunsoft.match.service.MemberService%26methods%3DfindByOpenId%2Clogin%26pid%3D32152%26revision%3D1.0.0%26side%3Dprovider%26timestamp%3D1488382462324%26version%3D1.0.0&pid=32152&registry=zookeeper&timestamp=1488382462302, cause: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:76)
	at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53)
	at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:64)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:42)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:78)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:60)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:112)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:38)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:108)
	at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:84)
	at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:170)
	at com.alibaba.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:52)
	at com.alibaba.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:82)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	at com.alibaba.dubbo.common.bytecode.Wrapper1.invokeMethod(Wrapper1.java)
	at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:46)
	at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:72)
	... 25 more
Caused by: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	... 28 more
] with root cause

com.alibaba.dubbo.remoting.RemotingException: com.alibaba.dubbo.rpc.RpcException: Failed to invoke remote proxy method login to registry://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=dubbo-provider&dubbo=2.5.3&export=dubbo%3A%2F%2F192.168.0.100%3A20880%2Fcom.chixunsoft.match.service.MemberService%3Fanyhost%3Dtrue%26application%3Ddubbo-provider%26dubbo%3D2.5.3%26interface%3Dcom.chixunsoft.match.service.MemberService%26methods%3DfindByOpenId%2Clogin%26pid%3D32152%26revision%3D1.0.0%26side%3Dprovider%26timestamp%3D1488382462324%26version%3D1.0.0&pid=32152&registry=zookeeper&timestamp=1488382462302, cause: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
com.alibaba.dubbo.rpc.RpcException: Failed to invoke remote proxy method login to registry://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=dubbo-provider&dubbo=2.5.3&export=dubbo%3A%2F%2F192.168.0.100%3A20880%2Fcom.chixunsoft.match.service.MemberService%3Fanyhost%3Dtrue%26application%3Ddubbo-provider%26dubbo%3D2.5.3%26interface%3Dcom.chixunsoft.match.service.MemberService%26methods%3DfindByOpenId%2Clogin%26pid%3D32152%26revision%3D1.0.0%26side%3Dprovider%26timestamp%3D1488382462324%26version%3D1.0.0&pid=32152&registry=zookeeper&timestamp=1488382462302, cause: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:76)
	at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53)
	at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:64)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:42)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:78)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:60)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:112)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:38)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:38)
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91)
	at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:108)
	at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:84)
	at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:170)
	at com.alibaba.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:52)
	at com.alibaba.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:82)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	at com.alibaba.dubbo.common.bytecode.Wrapper1.invokeMethod(Wrapper1.java)
	at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:46)
	at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:72)
	... 25 more
Caused by: java.lang.ClassCastException: com.chixunsoft.match.service.impl.MemberServiceImpl cannot be cast to com.chixunsoft.match.service.impl.MemberServiceImpl
	... 28 more

	at com.alibaba.dubbo.remoting.exchange.support.DefaultFuture.returnFromResponse(DefaultFuture.java:190) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.remoting.exchange.support.DefaultFuture.get(DefaultFuture.java:110) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.remoting.exchange.support.DefaultFuture.get(DefaultFuture.java:84) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.dubbo.DubboInvoker.doInvoke(DubboInvoker.java:96) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:144) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.listener.ListenerInvokerWrapper.invoke(ListenerInvokerWrapper.java:74) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:53) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.filter.ConsumerContextFilter.invoke(ConsumerContextFilter.java:48) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:77) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:227) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:72) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:52) ~[dubbo-2.5.3.jar:2.5.3]
	at com.alibaba.dubbo.common.bytecode.proxy0.login(proxy0.java) ~[na:2.5.3]
	at com.chixunsoft.match.controller.MemberController.login(MemberController.java:23) ~[classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_101]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_101]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_101]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_101]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:89) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.3.RELEASE.jar:4.3.3.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_101]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_101]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.5.jar:8.5.5]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]

两者都不导入正常！
@baigod
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baigod commented Sep 5, 2017

同问

@yoqu
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yoqu commented Sep 5, 2017

在使用通用mapper时候也发现了这个devtools这个问题，解决办法就是将jar包include到restart 类中。楼上麻烦测一下，时间已经过了很久了，我本地没有这个环境了。

原文：
在使用 DevTools 时，通用Mapper经常会出现 class x.x.A cannot be cast to x.x.A。

同一个类如果使用了不同的类加载器，就会产生这样的错误，所以解决方案就是让通用Mapper和实体类使用相同的类加载器即可。

DevTools 默认会对 IDE 中引入的所有项目使用 restart 类加载器，对于引入的 jar 包使用 base 类加载器，因此只要保证通用Mapper的jar包使用 restart 类加载器即可。

在 src/main/resources 中创建 META-INF 目录，在此目录下添加 spring-devtools.properties 配置，内容如下：

restart.include.mapper=/mapper-[\\w-\\.]+jar
restart.include.pagehelper=/pagehelper-[\\w-\\.]+jar

使用这个配置后，就会使用 restart 类加载加载 include 进去的 jar 包。

@yoqu yoqu closed this as completed Oct 23, 2018
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