jsp+servlet+jquery 用jquery uploadify最新版本实现多文件上传

//这是script代码
        <link rel="stylesheet" type="text/css" href="uploadify/uploadify.css">
        <script type="text/javascript" src="jquery-1.8.0.js"></script>
        <script type="text/javascript" src="uploadify/jquery.uploadify.min.js"></script>
        <script>
    $(document).ready(function() {
        $('#file_upload').uploadify( {
            'debug':'true',
            'swf' : 'uploadify/uploadify.swf',//上传按钮的图片，默认是这个flash文件
            'uploader' : 'LoginServlet',//上传所处理的服务器
            'cancelImg' : 'uploadfiy/uploadify-cancel.png',//取消图片
            'method':'post',
            'folder' : '/UploadFile',//上传后，所保存文件的路径
            'queueID' : 'fileQueue',//上传显示进度条的那个div
            'buttonText' : '请选择文件',
            //'onUploadComplete': function(file){alert('The file'+file.name+'finished processing!')},//每个文件上传成功后的函数
            progressData : 'percentage',
            'auto' : false,
            'multi' : true,
            //'onSelect':function(file){
            //alert("文件"+file.name+"被选择了！");
            //}
            //'onQueueComplete' : function(queueData) {
            //    alert(queueData.filesQueued + 'files were successfully!')
            //},//当队列中的所有文件上传成功后，弹出共有多少个文件上传成功
            'onDisable' : function() {
                alert('uploadify is disable');
            },//在调用disable方法时候触发
            //'onCancel':function(){alert('你取消了文件上传')}
            //'onUploadStart' : function(file) {//在调用上传前触发
            //alert('The file ' + file.name + ' is being uploaded.')}
            'onError' : function(errorType,errObj) {
                alert('The error was: ' + errObj.info)
            }

        });
    });

</script>

//这是表单元素
<div id="fileQueue"></div>
        <input id="file_upload" name="file_upload" type="file" multiple="true">
        <p>
            <!-- 加上“*”表示当第一个文件上传成功后，立即上传以后队列中的文件，否则需要自己手动 -->
            <a href="javascript:$('#file_upload').uploadify('upload','*')">上传</a>|
            <a
                href="javascript:$('#file_upload').uploadify('cancel',$('.uploadifive-queue-item').first().data('file'))">取消上传</a>
            <a href="javascript:$('#file_upload').uploadify('cancel','*')">清空所有的上传文件</a>
            <a href="javascript:$('#file_upload').uploadify('stop','*')">暂停</a>
            <!-- 如果填入true则表示禁用上传按钮 -->
            <a href="javascript:$('#file_upload').uploadify('disable','true')">禁用</a>
            <a href="javascript:$('#file_upload').uploadify('debug')">调试</a>
        </p>

 //后台servlet
 package com.accp.upload;
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Iterator;
 import java.util.List;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 import org.apache.commons.fileupload.disk.DiskFileItem;
 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
 import org.apache.commons.fileupload.servlet.ServletFileUpload;
 import org.apache.commons.fileupload.util.Streams;

 public class LoginServlet extends HttpServlet {

     /**
      * 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;charset=utf-8;");
         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
      */
     @SuppressWarnings("unchecked")
     public void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

         response.setContentType("text/html;charset=utf-8;");
         request.setCharacterEncoding("utf-8");
         PrintWriter out = response.getWriter();
         // 设置接收的编码格式
         request.setCharacterEncoding("UTF-8");
         Date date = new Date();// 获取当前时间
         SimpleDateFormat sdfFileName = new SimpleDateFormat("yyyyMMddHHmmss");
         SimpleDateFormat sdfFolder = new SimpleDateFormat("yyMM");
         String newfileName = sdfFileName.format(date);// 文件名称
         String fileRealPath = "";// 文件存放真实地址

         String fileRealResistPath = "";// 文件存放真实相对路径

         // 名称 界面编码 必须 和request 保存一致..否则乱码
         String name = request.getParameter("name");

         String firstFileName = "";
         // 获得容器中上传文件夹所在的物理路径
         String savePath = this.getServletConfig().getServletContext()
                 .getRealPath("/")
                 + "uploads\\" + newfileName + "\\";
         System.out.println("路径" + savePath + "; name:" + name);
         File file = new File(savePath);
         if (!file.isDirectory()) {
             file.mkdirs();
         }

         try {
             DiskFileItemFactory fac = new DiskFileItemFactory();
             ServletFileUpload upload = new ServletFileUpload(fac);
             upload.setHeaderEncoding("UTF-8");
             // 获取多个上传文件
             List fileList = fileList = upload.parseRequest(request);
             // 遍历上传文件写入磁盘
             Iterator it = fileList.iterator();
             while (it.hasNext()) {
                 Object obit = it.next();
                 if (obit instanceof DiskFileItem) {
                     System.out.println("xxxxxxxxxxxxx");
                     DiskFileItem item = (DiskFileItem) obit;

                     // 如果item是文件上传表单域
                     // 获得文件名及路径
                     String fileName = item.getName();
                     if (fileName != null) {
                         firstFileName = item.getName().substring(
                                 item.getName().lastIndexOf("\\") + 1);
                         String formatName = firstFileName
                                 .substring(firstFileName.lastIndexOf("."));// 获取文件后缀名
                         fileRealPath = savePath + newfileName + formatName;// 文件存放真实地址

                         BufferedInputStream in = new BufferedInputStream(item
                                 .getInputStream());// 获得文件输入流
                         BufferedOutputStream outStream = new BufferedOutputStream(
                                 new FileOutputStream(new File(fileRealPath)));// 获得文件输出流
                         Streams.copy(in, outStream, true);// 开始把文件写到你指定的上传文件夹
                         // 上传成功，则插入数据库
                         if (new File(fileRealPath).exists()) {
                             // 虚拟路径赋值
                             fileRealResistPath = sdfFolder.format(date)
                                     + "/"
                                     + fileRealPath.substring(fileRealPath
                                             .lastIndexOf("\\") + 1);
                             // 保存到数据库
                             System.out.println("保存到数据库:");
                             System.out.println("name:" + name);
                             System.out.println("虚拟路径:" + fileRealResistPath);
                         }

                     }
                 }
             }
         } catch (org.apache.commons.fileupload.FileUploadException ex) {
             ex.printStackTrace();
             System.out.println("没有上传文件");
             return;
         }
         response.getWriter().write("1");
         out.flush();
         out.close();

     }

 }