getWriter() has already 在系统框架中解决方法
调用的方法参数为:vote@015【_iv=IVoteService@pub】 [ERROR] 2012-10-18 18:56:57:389 com.usual.interceptor.HExceptionInterceptor:147 - [未知错误!] java.lang.IllegalStateException: getWriter() has already been called for this response at org.apache.catalina.connector.Response.getOutputStream(Response.java:576) at org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseFacade.java:181) at com.usual.dispatcher.JSONObjectResult.execute(JSONObjectResult.java:41) at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:313) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:208) at com.usual.interceptor.HExceptionInterceptor.commitHConn(HExceptionInterceptor.java:106) at com.usual.interceptor.HExceptionInterceptor.intercept(HExceptionInterceptor.java:42) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:175) at com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:116) at com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.webwork.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:174) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.webwork.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:169) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:151) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:186) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:116) at com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(DispatcherUtils.java:274) at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:202) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at com.tmd.core.business.LoginFilter.doFilter(LoginFilter.java:146) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at com.tmd.core.business.EncodingFilter.doFilter(EncodingFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:843) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:679) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1303) at java.lang.Thread.run(Thread.java:619) [ERROR] 2012-10-18 18:56:57:407 org.apache.catalina.core.StandardWrapperValve:253 - [Servlet.service() for servlet default threw exception] java.lang.IllegalStateException: getWriter() has already been called for this response at org.apache.catalina.connector.Response.getOutputStream(Response.java:576) at org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseFacade.java:181) at com.usual.dispatcher.JSONObjectResult.execute(JSONObjectResult.java:41) at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:313) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:208) at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:175) at com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:116) at com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.webwork.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:174) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.webwork.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:169) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:151) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:186) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:190) at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:116) at com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(DispatcherUtils.java:274) at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:202) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at com.tmd.core.business.LoginFilter.doFilter(LoginFilter.java:146) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at com.tmd.core.business.EncodingFilter.doFilter(EncodingFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:843) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:679) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1303) at java.lang.Thread.run(Thread.java:619)
解决方法：
在devProperties下的配置文件loginFilter.properties 加入vote@015,重启即可