Ajax asynchronous upload _ajax in jquery related

Looking for a long time finally found on the Internet Ajax asynchronous upload file method, but most of the internet is PHP, I changed to struts2 write the same, I hope to learn Java people have some help. I uploaded the music file.

Ajaxfileupload.js This JS file is the main file, be sure to import.

JSP page, where I also made a div of the hidden *****************************

<%@ 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" >  

Action upload background code *************************************

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 Strin
G FileName;
Private File upload; Public File Getupload () {return upload.} public void Setupload (File upload) {this.upload = upload;} public void SE Tuploadfilename (String fileName) {this.filename = filename;}/* * Song upload upload operation/public void Uploadaction () throws IOE xception {System.out.println ("entered the way!")
    ");
    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 ());//Album Name System.out.println (Id3v2.getsongtitle ());//Song name Syste 
          M.out.println (Id3v2.getleadartist ());//singer} 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 configuration file *********************************

<?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"/>
    //Set upload file maximum
    <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>

Later, after debugging, found that Firefox and IE incompatibility caused no execution to fight for results, so I uploaded ajaxfileupload.js I modified the source code

The above is the article to introduce jquery Ajax asynchronous upload, I hope to help.