Spring代理的问题 报java.lang.ClassCastException: $Proxy19 只有一个出问题 诡异~ 无解啊

Question

通过SpringAop配置的service报一下的错误
[code="java"]
BaseService baseService;
baseService = (BaseService) applicationContext.getBean("service_111");

BaseService 是一个接口，beanId为service_111的类实现这个接口，而且还有很多类实现这个接口，唯独调用这个累的时候进行强转的时候报以下错误，使用junit测试都好用，放在测试环境就报错 ，请大家帮忙！

这个时间 人很少么？大家帮看看 诡异问题出在别的类调用没有问题 只有一个出问题
[/code]

[code="java"]
java.lang.ClassCastException: $Proxy19
at com.tstn.report.action.ReportDispatchImpl.dispatch(ReportDispatchImpl.java:51)
at sun.reflect.GeneratedMethodAccessor1096.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy18.dispatch(Unknown Source)
at com.tstn.report.webservice.OnReportServiceImpl.OnBoss4Report(OnReportServiceImpl.java:32)
at sun.reflect.GeneratedMethodAccessor731.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
at $Proxy23.OnBoss4Report(Unknown Source)
at sun.reflect.GeneratedMethodAccessor731.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.codehaus.xfire.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:59)
at org.codehaus.xfire.service.binding.ServiceInvocationHandler.sendMessage(ServiceInvocationHandler.java:320)
at org.codehaus.xfire.service.binding.ServiceInvocationHandler$1.run(ServiceInvocationHandler.java:86)
at org.codehaus.xfire.service.binding.ServiceInvocationHandler.execute(ServiceInvocationHandler.java:134)
at org.codehaus.xfire.service.binding.ServiceInvocationHandler.invoke(ServiceInvocationHandler.java:109)
at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)
at org.codehaus.xfire.transport.DefaultEndpoint.onReceive(DefaultEndpoint.java:64)
at org.codehaus.xfire.transport.AbstractChannel.receive(AbstractChannel.java:38)
at org.codehaus.xfire.transport.http.XFireServletController.invoke(XFireServletController.java:304)
at org.codehaus.xfire.transport.http.XFireServletController.doService(XFireServletController.java:129)
at org.codehaus.xfire.spring.remoting.XFireServletControllerAdapter.handleRequest(XFireServletControllerAdapter.java:67)
at org.codehaus.xfire.spring.remoting.XFireExporter.handleRequest(XFireExporter.java:48)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:253)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:216)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:891)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:783)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:548)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

[/code]

Answer 1

或者直接查条代码：
Object bean = applicationContext.getBean("service_111");
if(bean instanceof BaseService) {
baseService = (BaseService) bean ;

} else {
logger.warn("Error Type: " + bean.getClass().getName());
}
看看类型到底是啥