3.6.6文件上传中途点击取消报错 getOutputStream() has already been ...

sususu

服务器上的项目，文件上传中途点击取消后台报错，在本地取消时不报错，请问是哪里问题？报错信息
org.apache.catalina.core.ApplicationDispatcher invoke
严重: 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:611)
        at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
        at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
        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:180)
        at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:118)
        at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:77)
        at org.apache.jsp.webpage.common.error_jsp._jspService(error_jsp.java:82)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
        at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:201)
        at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:267)
        at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1221)
        at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1005)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:952)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:643)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jeecgframework.core.aop.GZipFilter.doFilter(GZipFilter.java:93)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
2018-7-12 9:36:45 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet springMvc threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
        at org.apache.catalina.connector.Response.getWriter(Response.java:611)
        at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
        at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
        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:180)
        at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:118)
        at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:77)
        at org.apache.jsp.webpage.common.error_jsp._jspService(error_jsp.java:82)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
        at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:201)
        at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:267)
        at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1221)
        at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1005)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:952)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:643)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jeecgframework.core.aop.GZipFilter.doFilter(GZipFilter.java:93)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)


文件上传代码：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@include file="/context/mytags.jsp"%>
<!DOCTYPE html >
<html>
<head>
<t:base type="jquery,easyui,tools"></t:base>
<script type="text/javascript">
       
               
        function uploadSuccess(d,file,response){               
           $("#fileUrl").val(d.attributes.url);
           $("#fileName").val(d.attributes.fileName);
           $("#fileKey").val(d.attributes.fileKey);
           var url = $("#fileUrl").val();
           
           var url = d.attributes.url;
           var fileKey = d.attributes.fileKey;
           var fileName = d.attributes.fileName;
           
           
           var html="";
           if(url.indexOf(".gif")!=-1 ||
               url.indexOf(".jpg")!=-1        ||
               url.indexOf(".png")!=-1 ||
               url.indexOf(".bmp")!=-1){
               html += "<img src='"+url+"' width =400 height=300 />";
           }else{
               html += "<span>文件名称:"+d.attributes.name+"</span>";
           }
           $("#fileShow").html(html);
        }
        /* function callBack(d,file,response){
        } */
        function uploadCallback(callback){
                       
           var url = $("#fileUrl").val();
           var name= $("#fileName").val();
           var key= $("#fileKey").val();
           callback(url,name,key);
               
        }
</script>
</head>
<body style="overflow-y: hidden" scroll="no">
  <table cellpadding="0" cellspacing="1" class="formtable" >
  <input id="documentTitle" type="hidden" name="documentTitle" value="blank"/>
  <input id="fileUrl" type="hidden"/>
  <input id="fileName" type="hidden"/>
  <input id="fileKey" type="hidden"/>
   <tbody>
    <tr>
     <td align="right">
       <label class="Validform_label"></label>
     </td>
     <td class="value">
      <t:upload name="instruction" dialog="false" multi="false" extend="*.jpg;*.pdf;*.jpeg;*.png;*.gif;*.bmp;*.ico;*.tif;*.xls;*.xlsx;*.doc;*.docx;*.ppt;*.rar;*.txt;*.zip" queueID="instructionfile" view="false" auto="true" uploader="systemController.do?saveFiles"  id="instruction" formData="documentTitle"></t:upload>
     
     </td>
    </tr>
    <tr>
     <td colspan="2" id="instructionfile" class="value">
     </td>
    </tr>
   </tbody>
  </table>
   <div id="fileShow" >
  </div>
</body>
</html>


后台systemController.do?saveFiles中代码没有做过修改，请问是哪里的问题？

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