jquery ajax異步上傳

時間 2021-08-15

標籤 javascript php css html java jquery ajax apache json 服務器欄目 JQuery 简体版

原文原文鏈接

找了很久終於在網上找到了ajax異步上傳文件的方法，不過網上大多數是php的，我改成struts2寫的大同小異，但願對學習java的人有必定的幫助。我上傳的是音樂文件。ajaxfileupload.js這個js文件是主要文件，必定要導入。 jsp頁面，其中我還作了div的隱藏***************************** <%@ 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"> #div1{ 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>  <script type="text/javascript"> function ajaxFileUpload(){ $.ajaxFileUpload( { url:'uploadAction.action', //須要連接到服務器地址 secureuri:false, fileElementId:'upload', //文件選擇框的id屬性 dataType: 'json', //服務器返回的格式 success: function (data, status) //至關於java中try語句塊的用法 { // 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) //至關於java中catch語句塊的用法 { //alert("222."); $('#result').html('添加失敗'); } } ); 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="上傳文檔" 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="提交文檔信息" /> </div> </form> </body> </html> action上傳後臺代碼************************************* 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; } /* * 歌曲上傳上傳操做 */ public void uploadAction() throws IOException { System.out.println("進入了該方法！"); 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());//專輯名 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"/> //設置上傳文件最大量 <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> 後來通過調試，發現火狐和ie不兼容致使無執行爭取結果，因此我上傳ajaxfileupload.js 我修改了源碼