excelExport导出异常问题

腹部流出的肉

我在界面上定义了两个组件 一个trigger 另一个是excelExport 然后我在 trigger的onClick事件中写了justep.xbl("excelExport").excelExport(); 后 我在界面上点击导出时后台出现了
严重: Exception Processing ErrorPage[exceptionType=java.lang.Exception, location=/error.jsp]
org.apache.jasper.JasperException: java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:413)
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:717)
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.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:416)
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:270)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:595)
Caused by: 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 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.error_jsp._jspService(error_jsp.java:139)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
... 18 more
急急急 。。。。。。

腹部流出的肉

      <xforms:trigger component="/UI/system/components/trigger.xbl.xml#trigger" id="excelExportTrigger"
        class="button-blue" style="width:80px;">
        <xforms:label id="default22"><![CDATA[导  出]]></xforms:label>  
        <xforms:action id="action8" ev:event="DOMActivate">
          <xforms:script id="xformsScript8"><![CDATA[mainActivity.excelExportTriggerClick(event)]]></xforms:script>
        </xforms:action>
      </xforms:trigger>  
      <xhtml:div appearance="image-minimal" icon-class="icon-system-export" component="/UI/system/components/excel.xbl.xml#export"
        id="excelExport" data="listData" use-config-dlg="false" download-filename="投标申请查询报表.xls"/>

页面源代码

XiaoQLuo

先确定excelExport 组件点击是否正常？

腹部流出的肉

能导出 就是后台会报错 不知道为什么

腹部流出的肉

getOutputStream() has already been called for this response

jishuang

平台提供的测试案例/UI/demo/components/process/excel/excel.w或者/UI/demo/misc/process/docKind/docKindActivity.w中是否正确？