Question

我有一个聊天应用程序，我使用p：poll组件定期检查新消息。

我从3.5.20迁移到4.0.5后，我开始随机获得java.lang.IllegalStateException：已经为此响应调用了getOutputStream（）（下面的stacktrace）。

其他页面工作正常，只有它们之间的区别是poll组件。用Mojarra 2.1.26和2.2.4测试。

发生异常的时间差异很大。它可以是5分钟，也可以是2小时。不需要特殊的交互，如果我只是打开页面就会发生异常，另一个原因我认为问题可能是民意调查组件。

我知道poll组件在PrimeFaces 4中通过了一些重构：https://code.google.com/p/primefaces/issues/detail?id=5330

组件中的修改是否可以相关？有什么想法吗？

提前致谢，菲利普

Dec 17, 2013 8:22:49 AM org.primefaces.expression.SearchExpressionFacade resolveComponentForClient
WARNING: Can not update component without a attached renderer. Component class: "class org.primefaces.component.tabview.Tab"
Dec 17, 2013 8:23:35 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
SEVERE: Error Rendering View[/page/atendimento/atendimentos.xhtml]
java.lang.IllegalStateException: getOutputStream() has already been called for this response
   at org.apache.catalina.connector.Response.getWriter(Response.java:638)
   at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:214)
   at com.sun.faces.context.ExternalContextImpl.getResponseOutputWriter(ExternalContextImpl.java:834)
   at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:415)
   at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
   at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
   at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
   at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
   at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at br.com.spdata.tecnico.filter.ExceptionFilter.doFilter(ExceptionFilter.java:34)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
   at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
   at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
   at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
   at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
   at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
   at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
   at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
   at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
   at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
   at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
   at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
   at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:38)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
   at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
   at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
   at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
   at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
   at java.lang.Thread.run(Thread.java:744)

Answer 1

我不确切知道原因，但问题是由大气运行时引起的。改为大气 - 运行时 - 本机解决了这个问题。

我的错误是从PF 3.5迁移到4并同时启用了推送，因此解决问题根源要困难得多。

PrimeFaces 4.0.5：带有p：poll组件的随机IllegalStateException

1 个答案: