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

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//这是script代码
		
		
		
		

//这是表单元素

		
		

			
			上传|
			取消上传
			清空所有的上传文件
			暂停
			
			禁用
			调试
		

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. 

	 * 
	 * 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. 

	 * 
	 * 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();

	}

}