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

//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();

	}

}