<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>FileUpload</servlet-name> <servlet-class>servlets.FileUpload</servlet-class> </servlet> <servlet-mapping> <servlet-name>FileUpload</servlet-name> <url-pattern>/FileUpload</url-pattern> </servlet-mapping> </web-app>
<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>文件上传</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <form method="post" action="FileUpload" ENCTYPE="multipart/form-data"> 文件：<input type="file" name="file"> <input type="submit" value="上传" name="submit"> </form> </body> </html>
package servlets; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.Iterator; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; public class FileUpload extends HttpServlet{ @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub // TODO Auto-generated method stub boolean isMultipart = ServletFileUpload.isMultipartContent(req); if(isMultipart){ FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); Iterator items; try { items = upload.parseRequest(req).iterator(); while(items.hasNext()){ FileItem item = (FileItem) items.next(); if(!item.isFormField()){ //取出上传文件的文件名称 String name = item.getName(); String fileName = name.substring(name.lastIndexOf("//")+1, name.length()); //String path = req.getRealPath("file") + File.separatorChar + fileName; String path = "D://" + fileName; //上传文件 File uploadedFile = new File(path); item.write(uploadedFile); //打印上传成功信息 resp.setContentType("text/html"); resp.setCharacterEncoding("gb2312"); PrintWriter out = resp.getWriter(); out.print("<font size='2'>上传的文件为："+ name + "<br>"); out.print("保存地址为："+path+"</font>"); } } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } } }
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