项目中使用
1、下载相关jar 包：commons-fileupload-1.2.2.jar，commons-io-2.1.jar，commons-logging-1.1.1.jar
2、jsp页面
1、首先jsp页面引入的文件
<link href="js/uploadify.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="scripts/swfobject.js"></script>
<script type="text/javascript" src="js/jquery.uploadify.min.js"></script>
<!--ready事件-->
<script type="text/javascript">
$(document).ready(function() {
$('#file_upload').uploadify( {
// 'debug':'true',
'swf' : '<%=path%>/js/uploadify.swf',
'uploader' : '<%=path%>/Upload',//后台处理的请求
'cancelImg' : '<%=path%>js/uploadify-cancel.png',
'method':'post',
'folder' : '/UploadFile',//上传后，所保存文件的路径
'queueID' : 'fileQueue',//上传显示进度条的那个div
'buttonText' : '请选择文件',
'onUploadComplete': function(file){
alert(file.id)
alert('The file'+file.name+'finished processing!')},//每个文件上传成功后的函数
progressData : 'percentage', //设置上传进度显示方式，percentage显示上传百分比，speed显示上传速度
// progressData : 'speed',
'auto' : true,
'multi' : true,
'removeCompleted':false,//是否自动将已完成任务从队列中删除，如果设置为false则会一直保留此任务显示
//'onSelect':function(file){
//alert("文件"+file.name+"被选择了！");
//}
//'onQueueComplete' : function(queueData) {
// alert(queueData.filesQueued + 'files were successfully!')
//},//当队列中的所有文件上传成功后，弹出共有多少个文件上传成功
'onDisable' : function() {
alert('uploadify is disable');
},//在调用disable方法时候触发
//'onCancel':function(){alert('你取消了文件上传')}
//'onUploadStart' : function(file) {//在调用上传前触发
//alert('The file ' + file.name + ' is being uploaded.')}
'onError' : function(errorType,errObj) {
alert('The error was: ' + errObj.info)
}
});
});
<body>
<!-- <div id="fileQueue"></div>
<input type="file" name="uploadify" id="uploadify" />
<p>
<a href="javascript:$('#uploadify').uploadify('upload')">开始上传</a>
<a href="javascript:$('#uploadify').uplaodify('cancel','*')">取消上传</a>
</p> -->
<div id="fileQueue"></div>
<input id="file_upload" name="file_upload" type="file" multiple="true">
<p>
<!-- 加上“*”表示当第一个文件上传成功后，立即上传以后队列中的文件，否则需要自己手动 -->
<a href="javascript:$('#file_upload').uploadify('upload','*')">上传</a>|
<a
href="javascript:$('#file_upload').uploadify('cancel',$('.uploadifive-queue-item').first().data('file'))">取消上传</a>
<a href="javascript:$('#file_upload').uploadify('cancel','*')">清空所有的上传文件</a>
<a href="javascript:$('#file_upload').uploadify('stop','*')">暂停</a>
<!-- 如果填入true则表示禁用上传按钮 -->
<a href="javascript:$('#file_upload').uploadify('disable','true')">禁用</a>
<a href="javascript:$('#file_upload').uploadify('debug')">调试</a>
</p>
</body>
3、servlet
package com.yun4j;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.disk.DiskFileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.util.Streams;
/**
* Servlet implementation class Upload
*/
public class Upload extends HttpServlet implements Servlet {
private static final long serialVersionUID = 1L;
/**
* 实现多文件的同时上传
*/
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
//设置接收的编码格式
request.setCharacterEncoding("UTF-8");
Date date = new Date();//获取当前时间
SimpleDateFormat sdfFileName = new SimpleDateFormat("yyyyMMddHHmmss");
SimpleDateFormat sdfFolder = new SimpleDateFormat("yyMM");
String newfileName = sdfFileName.format(date);//文件名称
String fileRealPath = "";//文件存放真实地址
String fileRealResistPath = "";//文件存放真实相对路径
//名称 界面编码 必须 和request 保存一致..否则乱码
String name = request.getParameter("name");
String firstFileName="";
// 获得容器中上传文件夹所在的物理路径
String savePath = this.getServletConfig().getServletContext().getRealPath("/") + "uploads\" + newfileName +"\";
System.out.println("路径" + savePath+"; name:"+name);
File file = new File(savePath);
if (!file.isDirectory()) {
file.mkdirs();
}
try {
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("UTF-8");
// 获取多个上传文件
List fileList = fileList = upload.parseRequest(request);
// 遍历上传文件写入磁盘
Iterator it = fileList.iterator();
while (it.hasNext()) {
Object obit = it.next();
if(obit instanceof DiskFileItem){
System.out.println("xxxxxxxxxxxxx");
DiskFileItem item = (DiskFileItem) obit;
// 如果item是文件上传表单域
// 获得文件名及路径
String fileName = item.getName();
if (fileName != null) {
firstFileName=item.getName().substring(item.getName().lastIndexOf("\")+1);
String formatName = firstFileName.substring(firstFileName.lastIndexOf("."));//获取文件后缀名
fileRealPath = savePath + newfileName+ formatName;//文件存放真实地址
BufferedInputStream in = new BufferedInputStream(item.getInputStream());// 获得文件输入流
BufferedOutputStream outStream = new BufferedOutputStream(new FileOutputStream(new File(fileRealPath)));// 获得文件输出流
Streams.copy(in, outStream, true);// 开始把文件写到你指定的上传文件夹
//上传成功，则插入数据库
if (new File(fileRealPath).exists()) {
//虚拟路径赋值
fileRealResistPath=sdfFolder.format(date)+"/"+fileRealPath.substring(fileRealPath.lastIndexOf("\")+1);
//保存到数据库
System.out.println("保存到数据库:");
System.out.println("name:"+name);
System.out.println("虚拟路径:"+fileRealResistPath);
}
}
}
}
} catch (org.apache.commons.fileupload.FileUploadException ex) {
ex.printStackTrace();
System.out.println("没有上传文件");
return;
}
response.getWriter().write("1");
}
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
doGet(req, resp);
}
}
4、web.xml
<servlet>
<description></description>
<display-name>Upload</display-name>
<servlet-name>Upload</servlet-name>
<servlet-class>com.yun4j.Upload</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Upload</servlet-name>
<url-pattern>/Upload</url-pattern>
</servlet-mapping>