关于uploadify的2.1.4版本

目前在研究jquery的uploadify插件，但是使用过程中，都说2.1.4版本最稳定，可是我写的上传队列无法删除，页面报错

但是相反2.0.1版本却可以，我想问一下大侠们这是那的问题
这是jsp：

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

    pageEncoding="UTF-8"%>

<% 

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>Uploadify</title>

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

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

		<script type="text/javascript" src="style/viewplugin/jquery/1.4.4/jquery-1.4.4.js"></script>

		<script type="text/javascript" src="style/viewplugin/swfobject/swfobject.js"></script>

		<script type="text/javascript" src="style/viewplugin/uploadify/jquery.uploadify.v2.1.4.js"></script>

<%--		<script type="text/javascript" src="style/viewplugin/uploadify/jquery.uploadify.v2.0.1.js"></script>--%>

	</head>

	<body>

		<div id="fileQueue"></div>

		<input type="file" name="uploadify" id="uploadify" />

		<p>

		<!--  -->

		<a href="javascript:jQuery('#uploadify').uploadifyUpload()">开始上传</a> 

		

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

		</p>

		<script type="text/javascript">

		$(document).ready(function() {

			$("#uploadify").uploadify({

				'uploader'       : '<%=basePath%>style/images/uploadify/uploadify.swf',

				'cancelImg'      : '<%=basePath%>style/images/uploadify/cancel.png',

				'script'         : 'servlet/Upload?name=frank',

				//'script'         : 'upload!doUpload.action',

				'folder'         : 'uploads',

				'queueID'        : 'fileQueue',

				'auto'           : false,

				'multi'          : true,

				'simUploadLimit' : 2,

				'buttonText'	 : 'BROWSE'//,

			});

		});

		</script>

	</body>

	<input style="width:300px" value="<%=path%>"><br/>

	<input style="width:300px" value="<%=basePath%>">

</html>

action

package util004_upload;



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;



public class myUploadify extends HttpServlet {



	private static final long serialVersionUID = 1L;



	@Override

	protected void service(HttpServletRequest request,

			HttpServletResponse response) throws ServletException, IOException {

		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) {

			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(".") >= 0) {

					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);

	}



}

jquery function upload file

补充：Java ,  Web 开发