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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title> 百度uploader Demo</title>
<!--引入CSS-->
<link rel="stylesheet" type="text/css" href="/js/webuploader/css/webuploader.css">
<script type="text/javascript" src="/js/webuploader/js/jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="/js/webuploader/js/webuploader.min.js"></script>
<!--SWF在初始化的时候指定，在后面将展示-->
</head>
<body>
<h2>文件上传</h2>
<!--dom结构部分-->
<div id="uploader-demo">
<!--用来存放item-->
<div id="thelist" class="uploader-list"></div>
<div class="btns">
<div id="picker"><input type="file" /></div>
<button id="ctlBtn" class="btn btn-default">开始上传</button>
</div>
</div>
<script type="text/javascript">
jQuery(function() {
var $ = jQuery,
$list = $(‘#thelist‘),
$btn = $(‘#ctlBtn‘),
state = ‘pending‘,
uploader;
uploader = WebUploader.create({
// 不压缩image
resize: false,
// swf文件路径
swf: ‘/js/webuploader/js/Uploader.swf‘,
// 文件接收服务端。
server: ‘/uploadMeterialAttachment.do‘,
fileVal:‘upload‘,
// 选择文件的按钮。可选。
// 内部根据当前运行是创建，可能是input元素，也可能是flash.
pick: ‘#picker‘
});
// 当有文件添加进来的时候
uploader.on( ‘fileQueued‘, function( file ) {
$list.append( ‘<div id="‘ + file.id + ‘" class="item">‘ +
‘<h4 class="info">‘ + file.name + ‘</h4>‘ +
‘<p class="state">等待上传...</p>‘ +
‘</div>‘ );
});
// 文件上传过程中创建进度条实时显示。
uploader.on( ‘uploadProgress‘, function( file, percentage ) {
var $li = $( ‘#‘+file.id ),
$percent = $li.find(‘.progress .progress-bar‘);
// 避免重复创建
if ( !$percent.length ) {
$percent = $(‘<div class="progress progress-striped active">‘ +
‘<div class="progress-bar" role="progressbar" style="width: 0%">‘ +
‘</div>‘ +
‘</div>‘).appendTo( $li ).find(‘.progress-bar‘);
}
$li.find(‘p.state‘).text(‘上传中‘);
$percent.css( ‘width‘, percentage * 100 + ‘%‘ );
});
uploader.on( ‘uploadSuccess‘, function( file,data ) {
$( ‘#‘+file.id ).find(‘p.state‘).text(‘已上传‘);
$(‘#uploader-demo‘).append(‘<input type="text" name="attachmentid" value="‘+data.attachmentid+‘"/>‘);
$( ‘#‘+file.id ).addClass(‘upload-state-done‘);
});
uploader.on( ‘uploadError‘, function( file ) {
$( ‘#‘+file.id ).find(‘p.state‘).text(‘上传出错‘);
});
uploader.on( ‘uploadComplete‘, function( file ) {
$( ‘#‘+file.id ).find(‘.progress‘).fadeOut();
});
uploader.on( ‘all‘, function( type ) {
if ( type === ‘startUpload‘ ) {
state = ‘uploading‘;
} else if ( type === ‘stopUpload‘ ) {
state = ‘paused‘;
} else if ( type === ‘uploadFinished‘ ) {
state = ‘done‘;
}
if ( state === ‘uploading‘ ) {
$btn.text(‘暂停上传‘);
} else {
$btn.text(‘开始上传‘);
}
});
$btn.on( ‘click‘, function() {
if ( state === ‘uploading‘ ) {
uploader.stop();
} else {
uploader.upload();
}
});
$("#aaa").click(attachmentids); //提交按钮
});
</script>
</body>
</html>
Struts配置中 result = "success" type="json"
后台处理的action 方法：
public String uploadMeterialAttachment() throws Exception {
String path = ServletActionContext.getServletContext().getRealPath("upload");
File file = new File(path);
if (!file.exists()) {
file.mkdirs();
}
List<String> list = new ArrayList<String>();
String filePath = ""; //文件保存路径
String fileName = ""; //文件名称
for (int i = 0,l=upload.length;i<l; i++) {
fileName = uploadFileName[i];
File tmp =new File(file,System.nanoTime()+"_"+uploadFileName[i]);
FileUtils.copyFile(upload[i], tmp);
System.out.println(path+"/"+tmp.getName());
filePath=("/upload/"+tmp.getName());
}
/**
* 保存到附件表
*/
Attachment attachment = new Attachment();
attachment.setFilename(fileName);
attachment.setFilepath(filePath);
Serializable ser = this.getBaseBean().saveObject(attachment);
if(ser != null ){
JSONObject jsonObject = new JSONObject();
jsonObject.put("attachmentid", ser);
this.getPrintWriter(jsonObject);
}
return Action.SUCCESS;
}
将上传附件的 id 回调到前台，处理成一串字符串
var attachmentids = $("input[name=‘attachmentid‘]").map(function(){return $(this).val()}).get().join(",");
后台处理这些ids 只需 用 string的split方法：
String[] ids = attachmentids.split(",");
if(ids != null){
for(String aid :ids){
Attachment attachment = (Attachment) bean.findObject(Attachment.class,Long.parseLong(aid));
}
}
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原文地址：http://www.cnblogs.com/estellez/p/4530011.html
