uploadify上传资料 _Web前端

uploadify上传文件
主要代码1.上传的页面代码

<%@ page language="java" import="java.util.*" 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>
	<meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <head>
        <base href="<%=basePath%>">
        <title>Uploadify</title>
        <link href="css/default.css" rel="stylesheet" type="text/css" />
        <link href="css/uploadify.css" rel="stylesheet" type="text/css" />
        <script type="text/javascript" src="js/jquery-1.3.2.min.js"></script>
        <script type="text/javascript" src="js/swfobject.js"></script>
        <script type="text/javascript" src="js/jquery.uploadify.v2.1.0.js"></script>
        <script type="text/javascript">
        $(document).ready(function() {
            $("#uploadify").uploadify({
                'uploader'       : 'js/uploadify.swf',
                'script'         : '/zanwork/upload.up;jsessionid=<%=session.getId()%>',
                'cancelImg'      : 'images/cancel.png',
                'folder'         : 'uploads',
                'queueID'        : 'fileQueue',
                'auto'           : false,//是否自动上传
                'multi'          : true,
                'fileDesc':'请选择rar doc pdf文件',
                'sizeLimit': 1000*1024, // 注意这里，这里是文件大小。。。
                'fileExt':'*.doc;*.pdf;*.rar;*.zip',
                'height'         : 34,   
	            'width'          : 118,
                'buttonImg'      : 'images/img_select.jpg',//按钮的图片
                'simUploadLimit' : 2,
                'wmode'          : 'transparent' ,   
                onComplete       : function (event, queueID, fileObj, response, data)
                {    
                  alert(response); 
                  },    
                onError          : function(event, queueID, fileObj){ 
                   alert("文件:" + fileObj.name + " 上传失败1");} 
            });
             $("#uploadify2").uploadify({
               'uploader'       : 'js/uploadify.swf',
               'script'         : '/zanwork/upload.up;jsessionid=<%=session.getId()%>',
               'cancelImg'      : 'images/cancel.png',
               'folder'         : 'uploads',
               'auto'           : false,
               'multi'          : true,
                'sizeLimit': 1000*1024, // 注意这里，这里是文件大小。。。
               'simUploadLimit' : 2,
                 'fileDesc':'请选择rar doc pdf文件',
                'fileExt':'*.doc;*.pdf;*.rar',
                'height'         : 34,   
	            'width'          : 118,
                'buttonImg'      : 'images/img_select.jpg', 
                'wmode'          : 'transparent',   
                onComplete       : function (event, queueID, fileObj, response, data){  
                $("#fileA").val(response);//此处可以处理返回的数据
                },    
                onError          : function(event, queueID, fileObj){ 
                   alert("文件:" + fileObj.name + " 上传失败2");} 
              });
        });
        </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>&nbsp;
        <a href="javascript:jQuery('#uploadify').uploadifyClearQueue()">取消所有上传</a>
        </p>
        
        <input type="file" name="uploadify2" id="uploadify2" />
        <p>
        <a href="javascript:jQuery('#uploadify2').uploadifyUpload()">上传</a>&nbsp;
        <a href="javascript:jQuery('#uploadify2').uploadifyClearQueue()">取消所有上传</a>
        </p>
        <input type="text" id="fileA" />
    </body>
</html>

2.配置一个上传文件的东西，html是没法上传的，所以你需要一个上传的servlet

package servlet;

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;

@SuppressWarnings("serial")
public class Upload extends HttpServlet {
    @SuppressWarnings("unchecked")
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
    	System.out.println("执行到后台了。");
        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+"字节" + " " + 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().replaceAll("-", "");//删除uuid的-
                    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);
    }
}

3.然后你要配置此servlet

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <servlet>
        <servlet-name>upload</servlet-name>
        <servlet-class>servlet.Upload</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>upload</servlet-name>
        <url-pattern>/zanwork/upload.up</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

4.大功告成，你的还不行，那试试我的吧。