2、安裝，由于下載下來的例子是php版本的，所以我只留下了主要的幾個文件。如圖：

4、使用

前臺頁面：

pageEncoding="UTF-8"%>

html?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN"?"http://www.w3.org/TR/html4/loose.dtd">

Insert?title?here

$(document).ready(function()?{

$("#uploadify").uploadify({

'swf'???????:?'plugin/uploadify/uploadify.swf',

'uploader'??:?'UploadServlet',

'folder'?????????:?'/upload',

'queueID'????????:?'fileQueue',

'cancelImg'??????:?'plugin/uploadify/uploadify-cancel.png',

'buttonText'?????:?'上傳文件',

'auto'???????????:?false,?//設置true?自動上傳?設置false還需要手動點擊按鈕

'multi'??????????:?true,

'wmode'??????????:?'transparent',

'simUploadLimit'?:?999,

'fileTypeExts'????????:?'*.*',

'fileTypeDesc'???????:?'All?Files'

});

});

上傳|

取消上傳

后臺：

這里需要用到commons-fileupload組件，自行下載(提供的源碼中有哦~)。

import?java.io.BufferedInputStream;

import?java.io.BufferedOutputStream;

import?java.io.File;

import?java.io.FileOutputStream;

import?java.io.IOException;

import?java.io.PrintWriter;

import?java.util.Date;

import?java.util.Iterator;

import?java.util.List;

import?javax.servlet.ServletException;

import?javax.servlet.annotation.WebServlet;

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;

import?org.apache.commons.fileupload.util.Streams;

/**

*?Servlet?implementation?class?UploadServlet

*/

@WebServlet("/UploadServlet")

public?class?UploadServlet?extends?HttpServlet?{

private?static?final?long?serialVersionUID?=?1L;

/**

*?@see?HttpServlet#HttpServlet()

*/

public?UploadServlet()?{

super();

//?TODO?Auto-generated?constructor?stub

}

/**

*?@see?HttpServlet#doGet(HttpServletRequest?request,?HttpServletResponse?response)

*/

protected?void?doGet(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{

//?TODO?Auto-generated?method?stub

doPost(request,response);

}

/**

*?@see?HttpServlet#doPost(HttpServletRequest?request,?HttpServletResponse?response)

*/

protected?void?doPost(HttpServletRequest?request,?HttpServletResponse?response)?throws?ServletException,?IOException?{

//?TODO?Auto-generated?method?stub

//文件存放的目錄

File?tempDirPath?=new?File(request.getSession().getServletContext().getRealPath("/")+"\\upload\\");

if(!tempDirPath.exists()){

tempDirPath.mkdirs();

}

//創建磁盤文件工廠

DiskFileItemFactory?fac?=?new?DiskFileItemFactory();

//創建servlet文件上傳組件

ServletFileUpload?upload?=?new?ServletFileUpload(fac);

//文件列表

List?fileList?=?null;

//解析request從而得到前臺傳過來的文件

try?{

fileList?=?upload.parseRequest(request);

}?catch?(FileUploadException?ex)?{

ex.printStackTrace();

return;

}

//保存后的文件名

String?imageName?=?null;

//便利從前臺得到的文件列表

Iterator?it?=?fileList.iterator();

while(it.hasNext()){

FileItem?item?=??it.next();

//如果不是普通表單域，當做文件域來處理

if(!item.isFormField()){

imageName?=?new?Date().getTime()+Math.random()*10000+item.getName();

BufferedInputStream?in?=?new?BufferedInputStream(item.getInputStream());

BufferedOutputStream?out?=?new?BufferedOutputStream(

new?FileOutputStream(new?File(tempDirPath+"\\"+imageName)));

Streams.copy(in,?out,?true);

}

}

//

PrintWriter?out?=?null;

try?{

out?=?encodehead(request,?response);

}?catch?(IOException?e)?{

e.printStackTrace();

}

//這個地方不能少，否則前臺得不到上傳的結果

out.write("1");

out.close();

}

/**

*?Ajax輔助方法?獲取?PrintWriter

*?@return

*?@throws?IOException

*?@throws?IOException

*?request.setCharacterEncoding("utf-8");

response.setContentType("text/html;?charset=utf-8");

*/

private?PrintWriter?encodehead(HttpServletRequest?request,HttpServletResponse?response)?throws?IOException{

request.setCharacterEncoding("utf-8");

response.setContentType("text/html;?charset=utf-8");

return?response.getWriter();

}

}

5、最終效果圖 有點類似百度上傳文件的頁面效果 沒有百度做的好看哈~ 請勿噴

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