Flex 匯出DataGrid 時，報”java.lang.IllegalStateException: Post too large”

文章目錄

• Apache Tomcat/5.5.27

具體報錯資訊如下：

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Exception in JSP: /Flex/excelexport.jsp:107: String s=df.format(new Date()); 8: request.setCharacterEncoding("UTF-8");9: response.setHeader("Content-disposition","attachment; filename=ExportFile "+s+".xls");10: out.print(request.getParameter("htmltable"));11: %>Stacktrace:org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:367)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

 

root cause

java.lang.IllegalStateException: Post too largeorg.apache.catalina.connector.Request.parseParameters(Request.java:2388)org.apache.catalina.connector.Request.getParameter(Request.java:1005)org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:353)org.apache.jsp.Flex.excelexport_jsp._jspService(excelexport_jsp.java:52)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

 

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 logs.

Apache Tomcat/5.5.27

 

分析其原因為：在 Tomcat 中，設定的 maxPostSiz 太小所致, 更改方法如下：

在 conf/server.xml 中，增加 maxPostSize=0

 

<Connector acceptCount="100" connectionTimeout="20000" debug="0" disableUploadTimeout="true" enableLookups="false" maxSpareThreads="75" maxThreads="150" minSpareThreads="25" port="8092" redirectPort="8443" maxPostSize="0"/>

 

就可以了。