文件上传事例（支持各种格式）

package com.jc.myup.chenwei.action; import java.io.IOException; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.jc.myup.chenwei.biz.UpBiz; public class UpServlet extends HttpServlet { /** * Constructor of the object. */ public UpServlet() { super(); } /** * 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 { response.setContentType("text/html"); String imagepath=request.getParameter("imagepath"); System.out.println("imagepath:"+imagepath); String serverpath=request.getRealPath("/")+"image"+imagepath.substring(imagepath.lastIndexOf("\\"), imagepath.length()); System.out.println("serverpath:"+serverpath); UpBiz objupbiz=new UpBiz(); if(objupbiz.readFile(imagepath, serverpath)) { RequestDispatcher requestdispatcher=request.getRequestDispatcher("/ok.jsp"); requestdispatcher.forward(request, response); } else { RequestDispatcher requestdispatcher=request.getRequestDispatcher("/fial.jsp"); requestdispatcher.forward(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(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet( request, response); } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occure */ public void init() throws ServletException { // Put your code here } }