jquery中的ajax异步上传

技术  /  管理员 发布于 8年前   177

找了好久终于在网上找到了ajax异步上传文件的方法，不过网上大多数是php的 ，我改为struts2写的 大同小异，希望对学习java的人有一定的帮助。我上传的是音乐文件。

ajaxfileupload.js这个js文件是主要文件，一定要导入。

 jsp页面 ，其中我还做了div的隐藏*****************************

<%@ 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><head>　<base href="//article/<%=basePath%>">　<title>Uploadify</title><style type="text/css">#div1{color: #000000; font-size: 12px;   border: 0px solid #74B3DC;  color: #000;  background: #fff;display:none;}</style>　<script type="text/javascript" src="//article/js/jquery-1.3.2.min.js"></script>   <script type="text/javascript" src="//article/js/ajaxfileupload.js"></script>   <!-- 执行上传文件操作的函数 -->   <script type="text/javascript">     function ajaxFileUpload(){        $.ajaxFileUpload(          {        url:'uploadAction.action',      //需要链接到服务器地址        secureuri:false,        fileElementId:'upload',           //文件选择框的id属性        dataType: 'json',              //服务器返回的格式        success: function (data, status)      //相当于java中try语句块的用法        {          // alert(data);          var ss =data;         // alert(ss);          var mp3Name = ss.split(";");          for(var i=0; i<mp3Name.length;i++) {           //alert(mp3Name[i]);           $('#songName').val(mp3Name[0]);           $('#songsiger').val(mp3Name[1]);          }          $('#result').html('添加成功');        },        error: function (data, status, e)      //相当于java中catch语句块的用法        {          //alert("222.");          $('#result').html('添加失败');        }      }        );      target=document.getElementById('div1');      if (target.style.display=="block"){        target.style.display="none";      } else {        target.style.display="block";      }     }   </script></head><body>   <form method="post" action="uploadAction.action" enctype="multipart/form-data">     <input type="file" id="upload" name="upload"/>    <input type="button" value="上传文档" onclick="ajaxFileUpload()"/>  <div id="result"></div>    <div id="div1">    歌曲<input type="text" id="songName" name="songName" value="">    歌手 <input type="text" id="songsiger" name="songName" value="">    <input type="button" value="提交文档信息" />    </div>  </form> </body></html>

action上传后台代码*************************************

package action;import java.io.File;import java.io.IOException;import java.io.OutputStream;import org.apache.commons.io.FileUtils;import org.apache.struts2.json.annotations.JSON;import org.farng.mp3.MP3File;import org.farng.mp3.TagException;import org.farng.mp3.id3.AbstractID3v2;import org.farng.mp3.id3.ID3v1;import org.farng.mp3.lyrics3.AbstractLyrics3;import com.base.BaseAction;import com.opensymphony.xwork2.ActionSupport;public class Upload extends BaseAction {private static final long serialVersionUID = -4848248679889814408L;private String fileName;private File upload;public File getUpload() {  return upload;}public void setUpload(File upload) {  this.upload = upload;}public void setUploadFileName(String fileName) {  this.fileName = fileName;}/* * 歌曲上传 上传操作 */public void uploadAction() throws IOException {  System.out.println("进入了该方法！");    String targetDirectory = "D:\\upload";    System.out.println(upload);    File target = new File(targetDirectory, fileName);    FileUtils.copyFile(upload, target);    String path = targetDirectory+"\\"+fileName;     try {         MP3File file = new MP3File(path);//1,lyrics         AbstractID3v2 id3v2 = file.getID3v2Tag();         ID3v1 id3v1 = file.getID3v1Tag();         String ss = "";        if (id3v2 != null) {           System.out.println("id3v2");             ss = id3v2.getAlbumTitle()+";"+id3v2.getSongTitle()+";"+id3v2.getLeadArtist();            //String str = "{'msg','"+ss+"'}";            String str = ss;            outPut(str);          System.out.println(id3v2.getAlbumTitle());//专辑名           System.out.println(id3v2.getSongTitle());//歌曲名           System.out.println(id3v2.getLeadArtist());//歌手         } else {           System.out.println("id3v1");           System.out.println(id3v1.getAlbumTitle());           System.out.println(id3v1.getSongTitle());           System.out.println(id3v1.getLeadArtist());         }         AbstractLyrics3 lrc3Tag = file.getLyrics3Tag();         if (lrc3Tag != null) {           String lyrics = lrc3Tag.getSongLyric();           System.out.println(lyrics);         }       } catch (IOException e) {         e.printStackTrace();       } catch (TagException e) {         e.printStackTrace();       }       System.out.println("over");  }}

struts.xml配置文件*********************************

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC  "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"  "http://struts.apache.org/dtds/struts-2.0.dtd"><struts>  <constant name="struts.i18n.encoding" value="UTF-8"/>    //设置上传文件最大量    <constant name="struts.multipart.maxSize" value="10485760"/>    <package name="upload" namespace="/" extends="struts-default" >     <action name="uploadAction" class="action.Upload" method="uploadAction">       <result name="success">/index.jsp</result>           </action>  </package></struts>

  后来经过调试，发现火狐和ie不兼容 导致无执行争取结果，所以我上传ajaxfileupload.js 我修改了源码

以上是本文给大家介绍jquery中的ajax异步上传，希望对大家有所帮助。


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