ajax asynchronous upload in jquery-JS Tutorial-php.cn

ajax asynchronous upload in jquery

亚连

Release： 2018-05-25 09:54:32

Original

1923 people have browsed it

本篇文章给大家介绍jquery中的ajax异步上传，在此需要引入ajaxfileupload.js这个js文件。接下来，有需要的朋友一起学习吧

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p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="<%=basePath%>">
　<title>Uploadify</title>
<style type="text/css">
#p1{
color: #000000; font-size: 12px; 
  border: 0px solid #74B3DC;
  color: #000;
  background: #fff;
display:none;
}
</style>
　<script type="text/javascript" src="js/jquery-1.3.2.min.js"></script>
   <script type="text/javascript" src="js/ajaxfileupload.js"></script>
   <!-- 执行上传文件操作的函数 -->
   <script type="text/javascript">
     function ajaxFileUpload(){
        $.ajaxFileUpload(
          {
        url:&#39;uploadAction.action&#39;,      //需要链接到服务器地址
        secureuri:false,
        fileElementId:&#39;upload&#39;,           //文件选择框的id属性
        dataType: &#39;json&#39;,              //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]);
           $(&#39;#songName&#39;).val(mp3Name[0]);
           $(&#39;#songsiger&#39;).val(mp3Name[1]);
          }
          $(&#39;#result&#39;).html(&#39;添加成功&#39;);
        },
        error: function (data, status, e)      //相当于java中catch语句块的用法
        {
          //alert("222.");
          $(&#39;#result&#39;).html(&#39;添加失败&#39;);
        }
      }
        );
      target=document.getElementById(&#39;p1&#39;);
      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()"/>
  <p id="result"></p>
    <p id="p1">
    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" />
    </p>
  </form>
 </body>
</html>

Copy after login

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 = "{&#39;msg&#39;,&#39;"+ss+"&#39;}";
            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"); 
 }
}

Copy after login

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>

Copy after login

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

上面是我整理给大家的，希望今后会对大家有帮助。

ASP.NET与Ajax的实现方式

JQuery ajax返回JSON时的处理方式

如何解决JQuery ajaxSubmit提交中文乱码

The above is the detailed content of ajax asynchronous upload in jquery. For more information, please follow other related articles on the PHP Chinese website!