解决Tomcat中文文件名下载问题

lihanchuan125

　　本篇来源于：http://piggysnow.sinaapp.com/archives/29 我做下补充，记录一下
　　

• package com.utils;
  
• 
  
• 
  
• import java.io.IOException;
  
• 
  
• 
  
• import javax.servlet.ServletException;
  
• import javax.servlet.http.HttpServletRequest;
  
• import javax.servlet.http.HttpServletResponse;
  
• 
  
• import org.apache.catalina.Globals;
  
• import org.apache.catalina.servlets.DefaultServlet;
  
• 
  
• /**
  
• * 此类是为了解决 下载tomcat中的中文文件时连接错误的问题
  
• * 解决办法1(也是此类)：此类来源于网络：http://piggysnow.sinaapp.com/archives/29，需要注意的是在部署此项目的时候，需要把项目中的catalina.jar删除，否则会包冲突错误[tomcat启动正常，而页面却总是无内容显示的错误]
  
• * 解决办法2：在tomcat中server.xml 大概70行的位置添加：URIEncoding="utf-8"
  
• * @date：下午1:29:07 2012-12-28
  
• */
  
• public class DownloadCharacterEncodingServlet extends DefaultServlet {
  
•     /**
  
•      *
  
•      */
  
•     private static final long serialVersionUID = 2551697592701704614L;
  
• 
  
•     /**
  
•     * Return the relative path associated with this servlet.
  
•     *
  
•     * @param request The servlet request we are processing
  
•     */
  
•     protected String getRelativePath(HttpServletRequest request) {
  
•     // IMPORTANT: DefaultServlet can be mapped to ‘/’ or ‘/path/*’ but always
  
•     // serves resources from the web app root with context rooted paths.
  
•     // i.e. it can not be used to mount the web app root under a sub-path
  
•     // This method must construct a complete context rooted path, although
  
•     // subclasses can change this behaviour.
  
• 
  
•     // Are we being processed by a RequestDispatcher.include()?
  
•     if (request.getAttribute(Globals.INCLUDE_REQUEST_URI_ATTR) != null) {
  
•     String result = (String) request.getAttribute(
  
•     Globals.INCLUDE_PATH_INFO_ATTR);
  
•     if (result == null) {
  
•     result = (String) request.getAttribute(
  
•     Globals.INCLUDE_SERVLET_PATH_ATTR);
  
•     } else {
  
•     result = (String) request.getAttribute(
  
•     Globals.INCLUDE_SERVLET_PATH_ATTR) + result;
  
•     }
  
•     if ((result == null) || (result.equals(""))) {
  
•     result = "/";
  
•     }
  
•     return (result);
  
•     }
  
• 
  
•     String result = request.getPathInfo();
  
•     if (result == null) {
  
•     result = request.getServletPath();
  
•     } else {
  
•     result = request.getServletPath() + result;
  
•     }
  
•     if ((result == null) || (result.equals(""))) {
  
•     result = "/";
  
•     }
  
•     try{
  
•     result = new String(result.getBytes("ISO-8859-1"), "UTF-8");
  
•     }
  
•     catch (Exception e) {
  
•     }
  
•     return (result);
  
• 
  
•     }
  
• 
  
•     @Override
  
•     protected void doDelete(HttpServletRequest req, HttpServletResponse resp)
  
•     throws ServletException, IOException {
  
•     super.doGet(req, resp);
  
•     }
  
• 
  
•     @Override
  
•     protected void doPost(HttpServletRequest request,
  
•     HttpServletResponse response) throws IOException, ServletException {
  
•     super.doGet(request, response);
  
•     }
  
• 
  
•     @Override
  
•     protected void doPut(HttpServletRequest req, HttpServletResponse resp)
  
•     throws ServletException, IOException {
  
•     // TODO Auto-generated method stub
  
•     super.doGet(req, resp);
  
•     }
  
• }
  

　　

　　Web.xml配置一下servlet：
　　

• 
  
• chnURIServlet
  
• com.utils.DownloadCharacterEncodingServlet
  
• 
  
• 
  
•     chnURIServlet
  
•     /xls/*
  
• 
  

　　

　　需要注意的的是：要把那个jar包删除掉：不然会报如下错误：
　　

• 2012-12-28 13:40:30 org.apache.catalina.core.ApplicationContext log
  
• 严重: StandardWrapper.Throwable
  
• java.lang.ClassCastException: org.apache.naming.resources.ProxyDirContext cannot be cast to org.apache.naming.resources.ProxyDirContext
  
•     at org.apache.catalina.servlets.DefaultServlet.init(DefaultServlet.java:305)
  
•     at javax.servlet.GenericServlet.init(GenericServlet.java:212)
  
•     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
  
•     at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
  
•     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
  
•     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:102)
  
•     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.Http11AprProcessor.process(Http11AprProcessor.java:877)
  
•     at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)
  
•     at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
  
•     at java.lang.Thread.run(Thread.java:619)
  
• 2012-12-28 13:40:30 org.apache.catalina.core.StandardWrapperValve invoke
  
• 严重: Allocate exception for servlet chnURIServlet
  
• java.lang.ClassCastException: org.apache.naming.resources.ProxyDirContext cannot be cast to org.apache.naming.resources.ProxyDirContext
  
•     at org.apache.catalina.servlets.DefaultServlet.init(DefaultServlet.java:305)
  
•     at javax.servlet.GenericServlet.init(GenericServlet.java:212)
  
•     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
  
•     at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
  
•     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
  
•     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:102)
  
•     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.Http11AprProcessor.process(Http11AprProcessor.java:877)
  
•     at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:594)
  
•     at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1675)
  
•     at java.lang.Thread.run(Thread.java:619)