/** * 获得指标的历次对比曲线 * @return * @throws IOException * @throws Exception */ public String getCurve() throws IOException { List<QuotaRecord> quotaRecordList=reportDao.getQuotaRecord(personIdNo,itemQuotaCode); JSONArray jsonArray=JSONArray.fromObject(quotaRecordList); HttpServletResponse response = (HttpServletResponse) ActionContext.getContext().get(ServletActionContext.HTTP_RESPONSE); response.setContentType("text/html;charset=utf-8"); response.setCharacterEncoding("utf-8"); response.setHeader("Charset","utf-8"); response.setHeader("Cache-Control","no-cache"); PrintWriter out = response.getWriter(); //输出到客户端json对象 out.write(jsonArray.toString()); out.flush(); out.close(); return "success";
}
九月 23,2016 9:49:44 上午 org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [default] in context with path [/SupMisMp] threw exception java.lang.IllegalStateException: Cannot call sendError() after the response has been committed at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:450) at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:771) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:506) at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:722)
将return "success"改为return null
returnSUCCESS;这代表着转向,需要response的,而response.getOutputStream();在out.write(jsonArray.toString());时已经committed,不能再response一次,当把returnSUCCESS;改成returnnull;所有问题都解决!至于怎样是committed,推荐看看这里:http://jorton468.blog.163.com/blog/static/72588135201102441617287/ (编辑:李大同)
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