jsp文件下载有关问题：Connection reset by peer: socket write error

jsp文件下载问题：Connection reset by peer: socket write error
我用以下方法实现资源下载功能：

首先是一个客户端JSP页面，显示可下载的资源列表，当用户点击某个资源是，传递一个唯一的资源编号到Action，在数据库中读取该资源的url，然后下载次数+1，然后把url放到一个request里面，再跳到一个JSP页面：

HTML code


<%@ page language="java" pageEncoding="GB18030"%>
<jsp:directive.page import="java.net.URLEncoder"/>
<%
    request.setCharacterEncoding("GB18030");
    String srcURL = String.valueOf(request.getAttribute("srcURL"));//资源路径

       response.setContentType("application/x-download");
       String url = "/upload/doc/"+srcURL;
       String fileName = srcURL;
       fileName = URLEncoder.encode(fileName, "UTF-8");
       response.addHeader("Content-Disposition", "attachment;filename="
               + fileName);
       RequestDispatcher rd = application.getRequestDispatcher(url);
       rd.forward(request, response);
       response.flushBuffer();
       out.clear();
       out.clearBuffer();
       out = pageContext.pushBody();
%>

这时候，可以下载资源了，但是我发现点击某些资源，弹出保存框，并且取消保存的时候，控制台输出如下错误：

Java code


2009-8-26 22:06:58 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.net.SocketException: Connection reset by peer: socket write error
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(Unknown Source)
    at java.net.SocketOutputStream.write(Unknown Source)
    at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:750)
    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:432)
    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:347)
    at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:773)
    at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:118)
    at org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:583)
    at org.apache.coyote.Response.doWrite(Response.java:560)
    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:361)
    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:432)
    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:347)
    at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:392)
    at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:381)
    at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
    at org.apache.catalina.servlets.DefaultServlet.copyRange(DefaultServlet.java:2083)
    at org.apache.catalina.servlets.DefaultServlet.copy(DefaultServlet.java:1796)
    at org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.java:874)
    at org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:376)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.apache.jsp.mainViews.downloadAction_jsp._jspService(downloadAction_jsp.java:56)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    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:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063)
    at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
    at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
    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:172)
    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:174)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
    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(Unknown Source)
2009-8-26 22:06:58 org.apache.catalina.core.StandardWrapperValve invoke

jsp文件下载有关问题：Connection reset by peer: socket write error

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