摘自：http://itindex.net/detail/47160-java-jquery-%E4%B8%8A%E4%BC%A0
运行效果：
包结构图：
后台JAVA逻辑：
package com.bijian.study;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.UUID;
import javax.servlet.ServletException;
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;
@SuppressWarnings("serial")
public class Upload extends HttpServlet {
@SuppressWarnings("unchecked")
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String savePath = this.getServletConfig().getServletContext().getRealPath("");
savePath = savePath + "/uploads/";
File f1 = new File(savePath);
System.out.println(savePath);
if (!f1.exists()) {
f1.mkdirs();
}
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("utf-8");
List fileList = null;
try {
fileList = upload.parseRequest(request);
} catch (FileUploadException ex) {
return;
}
Iterator<FileItem> it = fileList.iterator();
String name = "";
String extName = "";
while (it.hasNext()) {
FileItem item = it.next();
if (!item.isFormField()) {
name = item.getName();
long size = item.getSize();
String type = item.getContentType();
System.out.println(size + " " + type);
if (name == null || name.trim().equals("")) {
continue;
}
// 扩展名格式：
if (name.lastIndexOf(".") >= 0) {
extName = name.substring(name.lastIndexOf("."));
}
File file = null;
do {
// 生成文件名：
name = UUID.randomUUID().toString();
file = new File(savePath + name + extName);
} while (file.exists());
File saveFile = new File(savePath + name + extName);
try {
item.write(saveFile);
} catch (Exception e) {
e.printStackTrace();
}
}
}
response.getWriter().print(name + extName);
}
}
web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>upload</servlet-name>
<servlet-class>com.bijian.study.Upload</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>upload</servlet-name>
<url-pattern>/servlet/Upload</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
index.jsp：
<%@ page language="java" contentType="text/html; charset=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>Upload</title>
<!--装载文件-->
<link href="css/uploadify.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="uploadify/jquery-1.9.1.js"></script>
<script type="text/javascript" src="uploadify/jquery.uploadify.min.js"></script>
<!--ready事件-->
<script type="text/javascript">
$(document).ready(function() {
$("#uploadify").uploadify({
‘uploader‘ : ‘servlet/Upload‘,
‘swf‘ : ‘uploadify/uploadify.swf‘,
‘cancelImg‘ : ‘img/uploadify-cancel.png‘,
‘folder‘ : ‘uploads‘,//您想将文件保存到的路径
‘queueID‘ : ‘fileQueue‘,//与下面的id对应
‘queueSizeLimit‘ : 5,
‘fileDesc‘ : ‘rar文件或zip文件‘,
‘fileExt‘ : ‘*.rar;*.zip‘, //控制可上传文件的扩展名，启用本项时需同时声明fileDesc
‘auto‘ : false,
‘multi‘ : true,
‘simUploadLimit‘ : 2,
‘buttonText‘ : ‘选择文件‘,
‘onDialogOpen‘ : function() {//当选择文件对话框打开时触发
alert( ‘Open!‘);
},
‘onSelect‘ : function(file) {//当每个文件添加至队列后触发
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus);
},
‘onSelectError‘ : function(file,errorCode,errorMsg) {//当文件选定发生错误时触发
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus
+ ‘ - 错误代码: ‘ + errorCode
+ ‘ - 错误信息: ‘ + errorMsg);
},
‘onDialogClose‘ : function(swfuploadifyQueue) {//当文件选择对话框关闭时触发
if( swfuploadifyQueue.filesErrored > 0 ){
alert( ‘添加至队列时有‘
+swfuploadifyQueue.filesErrored
+‘个文件发生错误n‘
+‘错误信息:‘
+swfuploadifyQueue.errorMsg
+‘n选定的文件数:‘
+swfuploadifyQueue.filesSelected
+‘n成功添加至队列的文件数:‘
+swfuploadifyQueue.filesQueued
+‘n队列中的总文件数量:‘
+swfuploadifyQueue.queueLength);
}
},
‘onQueueComplete‘ : function(stats) {//当队列中的所有文件全部完成上传时触发
alert( ‘成功上传的文件数: ‘ + stats.successful_uploads
+ ‘ - 上传出错的文件数: ‘ + stats.upload_errors
+ ‘ - 取消上传的文件数: ‘ + stats.upload_cancelled
+ ‘ - 出错的文件数‘ + stats.queue_errors);
},
‘onUploadComplete‘ : function(file,swfuploadifyQueue) {//队列中的每个文件上传完成时触发一次
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus);
},
‘onUploadError‘ : function(file,errorCode,errorMsg,errorString,swfuploadifyQueue) {//上传文件出错是触发（每个出错文件触发一次）
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus
+ ‘ - 错误代码: ‘ + errorCode
+ ‘ - 错误描述: ‘ + errorMsg
+ ‘ - 简要错误描述: ‘ + errorString);
},
‘onUploadProgress‘ : function(file,fileBytesLoaded,fileTotalBytes,queueBytesLoaded,swfuploadifyQueueUploadSize) {//上传进度发生变更时触发
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus
+ ‘ - 当前文件已上传: ‘ + fileBytesLoaded
+ ‘ - 当前文件大小: ‘ + fileTotalBytes
+ ‘ - 队列已上传: ‘ + queueBytesLoaded
+ ‘ - 队列大小: ‘ + swfuploadifyQueueUploadSize);
},
‘onUploadStart‘: function(file) {//上传开始时触发（每个文件触发一次）
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus );
},
‘onUploadSuccess‘ : function(file,data,response) {//上传完成时触发（每个文件触发一次）
alert( ‘id: ‘ + file.id
+ ‘ - 索引: ‘ + file.index
+ ‘ - 文件名: ‘ + file.name
+ ‘ - 文件大小: ‘ + file.size
+ ‘ - 类型: ‘ + file.type
+ ‘ - 创建日期: ‘ + file.creationdate
+ ‘ - 修改日期: ‘ + file.modificationdate
+ ‘ - 文件状态: ‘ + file.filestatus
+ ‘ - 服务器端消息: ‘ + data
+ ‘ - 是否上传成功: ‘ + response);
}
});
});
</script>
</head>
<body>
<div id="fileQueue"></div>
<input type="file" name="uploadify" id="uploadify" />
<p>
<!-- 上传第一个未上传的文件 -->
<a href="javascript:$(‘#uploadify‘).uploadify(‘upload‘)">上传</a>
<!-- 取消第一个未取消的文件 -->
<a href="javascript:$(‘#uploadify‘).uploadify(‘cancel‘)">取消上传</a>
<a href="javascript:$(‘#uploadify‘).uploadify(‘upload‘,‘*‘)">开始上传所有文件</a>
<a href="javascript:$(‘#uploadify‘).uploadify(‘cancel‘,‘*‘)">取消所有上传</a>
</p>
</body>
</html>
时间： 2024-11-08 00:27:53