<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

  <display-name>UploadifyJava</display-name>

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

  <servlet>

    <description></description>

    <display-name>UpFileServlet</display-name>

    <servlet-name>UpFileServlet</servlet-name>

    <servlet-class>com.horizon.action.UpFileServlet</servlet-class>

  </servlet>

  <servlet-mapping>

    <servlet-name>UpFileServlet</servlet-name>

    <url-pattern>/UpFileServlet</url-pattern>

  </servlet-mapping>

</web-app>

package com.horizon.action;

import java.io.File;

import java.io.IOException;

import java.util.Iterator;

import java.util.List;

import java.util.UUID;

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.FileUploadException;

import org.apache.commons.fileupload.disk.DiskFileItemFactory;

import org.apache.commons.fileupload.servlet.ServletFileUpload;

/**

 * Servlet implementation class UpFileServlet

 */

public class UpFileServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public UpFileServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

    /**

     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse

     *      response)

     */

    @SuppressWarnings({ "unchecked", "rawtypes" })

    protected void doGet(HttpServletRequest request,

            HttpServletResponse response) throws ServletException, IOException {

        // 获得参数

        String timestamp = request.getParameter("timestamp");

        String token = request.getParameter("token");

        System.out.println(timestamp);

        System.out.println(token);

        // 获得文件

        String savePath = this.getServletConfig().getServletContext()

                .getRealPath("");

        savePath = savePath + "/uploads/";

        File f1 = new File(savePath);

        System.out.println(savePath);

        if (!f1.exists()) {

            f1.mkdirs();

        }

        DiskFileItemFactory fac = new DiskFileItemFactory();

        ServletFileUpload upload = new ServletFileUpload(fac);

        upload.setHeaderEncoding("utf-8");

        List fileList = null;

        try {

            fileList = upload.parseRequest(request);

        } catch (FileUploadException ex) {

            System.out.println(ex.getMessage());

            return;

        }

        Iterator<FileItem> it = fileList.iterator();

        String name = "";

        String extName = "";

        while (it.hasNext()) {

            FileItem item = it.next();

            if (!item.isFormField()) {

                name = item.getName();

                long size = item.getSize();

                String type = item.getContentType();

                System.out.println(size + " " + type);

                if (name == null || name.trim().equals("")) {

                    continue;

                }

                // 扩展名格式：

                if (name.lastIndexOf(".") >= ) {

                    extName = name.substring(name.lastIndexOf("."));

                }

                File file = null;

                do {

                    // 生成文件名：

                    name = UUID.randomUUID().toString();

                    file = new File(savePath + name + extName);

                } while (file.exists());

                File saveFile = new File(savePath + name + extName);

                try {

                    item.write(saveFile);

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        }

        response.getWriter().print(name + extName);

    }

    /**

     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse

     *      response)

     */

    protected void doPost(HttpServletRequest request,

            HttpServletResponse response) throws ServletException, IOException {

        doGet(request, response);

    }

}

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>UploadiFive Test</title>

<script src="js/jquery-1.8.0.min.js" type="text/javascript"></script>

<script src="js/uploadify/jquery.uploadify.min.js"

    type="text/javascript"></script>

<link rel="stylesheet" type="text/css" href="js/uploadify/uploadify.css">

<style type="text/css">

body {

    font: 13px Arial, Helvetica, Sans-serif;

}

</style>

</head>

<body>

    <h1>Uploadify Demo for java</h1>

    <form>

        <div id="queue"></div>

        <input id="file_upload" name="file_upload" type="file" multiple="true" />

        <a href="javascript:$('#file_upload').uploadify('upload')">开始上传</a>&nbsp;

        <a href="javascript:$('#file_upload').uploadify('cancel')">取消所有上传</a>

        </p>

    </form>

    <script type="text/javascript">

        $(function() {

            var timestamp = new Date().getTime();

            $('#file_upload').uploadify({

                'formData' : {

                    'timestamp' : timestamp,

                    'token' : 'unique_salt' + timestamp

                },// 设置想后台传递的参数 如果设置该参数，那么method应该设置为get，才能得到参数

                'swf' : 'js/uploadify/uploadify.swf',// 指定swf文件

                'uploader' : 'UpFileServlet',// 后台处理的页面

                'cancelImg' : 'js/uploadify/uploadify-cancel.png',// 取消按钮图片路径

                "queueID" : 'queue',// 上传文件页面中，你想要用来作为文件队列的元素的id, 默认为false  自动生成,  不带#

                'method' : 'get',// 设置上传格式

                'auto' : false,// 当选中文件后是否自动提交

                'multi' : true,// 是否支持多个文件上传

                'simUploadLimit' : ,

                'buttonText' : '选择文件',// 按钮显示的文字

                'onUploadSuccess': function (file, data, response) {// 上传成功后执行

                    $('#' + file.id).find('.data').html(' 上传完毕');

                 }

            });

        });

    </script>

</body>

</html>