바람둥이 프록시 오류

Question

내 앱에서 프록시 오류가 발생하고 로그에이 내용이 많이 표시됩니다. Jan 28, 2011 12:24:43 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: getOutputStream() has already been called for this response at org.apache.catalina.connector.Response.getWriter(Response.java:607) at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:196) at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118) at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:179) at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:116) at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:76) at org.apache.jsp.pieChart_jsp._jspService(pieChart_jsp.java:142) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738) 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:174) 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:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:619)

정확한 문제를 파악할 수 없습니다. pieChart.jsp와 함께 할 것입니다. Pls 날 도와 줘요.

Answer 1

일반적으로 이것은 스트림을 닫은 후에 발생한다고 생각하지만 버퍼에 더 많이 쓰려고했습니다. 예를 들면 :

이 같은 서블릿으로 바꿀 것이다 JSP 컴파일러에서 어떻게됩니까 <% out.print(myChartData); out.close(); %>

;

out.print(myChartData); out.close(); out.println("\r\n)"; out.println("\r\n)";

그리고 JSP에있는만큼 \ 연구 \ n 인쇄가있을 것입니다.

쉬운 해결 방법은 다음과 같습니다. <% out.print(myChartData); out.close(); if (myChartData!=null) { return; } %> 이 경우 - 닫기 후에 추가 인쇄물이 없습니다.