servlet实现上传下载完整代码.docx

----------------------------------------jsp代码----------------------------------------------------------------------------- form action=%=basePath %Upload method=post input type=file name=file1 br input type=file name=file2 br input type=file name=file3 input type=submit value=upload / br br a href=%=basePath %Down?downFile=%=URLEncoder.encode(JDK_API_1_6_zh_CN.CHM,utf-8 )%down/a /form ----------------------------------上传upload.java------------------------------------------------------------------------ package com; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class Upload extends HttpServlet { /** * Destruction of the servlet. br */ public void destroy() { super.destroy(); // Just puts destroy string in log // Put your code here } /** * The doGet method of the servlet. br * * This method is called when a form has its tag value method equals to get. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } /** * The doPost method of the servlet. br * * This method is called when a form has its tag value method equals to post. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doPost(HttpServle