Web文件上传模块 Plupload

Plupload 是一个Web浏览器上的界面友好的文件上传模块，可显示上传进度、图像自动缩略和上传分块。可同时上传多个文件。

示例代码：

<!-- Load Queue widget CSS and jQuery -->
<style type="text/css">@import url(css/plupload.queue.css);</style>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
	google.load("jquery", "1.3");
</script>

<!-- Thirdparty intialization scripts, needed for the Google Gears and BrowserPlus runtimes -->
<script type="text/javascript" src="/plupload/js/gears_init.js"></script>
<script type="text/javascript" src="http://bp.yahooapis.com/2.4.21/browserplus-min.js"></script>

<!-- Load plupload and all it's runtimes and finally the jQuery queue widget -->
<script type="text/javascript" src="/plupload/js/plupload.full.min.js"></script>
<script type="text/javascript" src="/plupload/js/jquery.plupload.queue.min.js"></script>

<script type="text/javascript">
// Convert divs to queue widgets when the DOM is ready
$().ready(function() {
	$("#uploader").pluploadQueue({
		// General settings
		runtimes : 'gears,flash,silverlight,browserplus,html5',
		url : 'upload.php',
		max_file_size : '10mb',
		chunk_size : '1mb',
		unique_names : true,

		// Resize images on clientside if we can
		resize : {width : 320, height : 240, quality : 90},

		// Specify what files to browse for
		filters : [
			{title : "Image files", extensions : "jpg,gif,png"},
			{title : "Zip files", extensions : "zip"}
		],

		// Flash settings
		flash_swf_url : '/plupload/js/plupload.flash.swf',

		// Silverlight settings
		silverlight_xap_url : '/plupload/js/plupload.silverlight.xap'
	});

	// Client side form validation
	$('form').submit(function(e) {
		var uploader = $('#uploader').pluploadQueue();

		// Validate number of uploaded files
		if (uploader.total.uploaded == 0) {
			// Files in queue upload them first
			if (uploader.files.length > 0) {
				// When all files are uploaded submit form
				uploader.bind('UploadProgress', function() {
					if (uploader.total.uploaded == uploader.files.length)
						$('form').submit();
				});

				uploader.start();
			} else
				alert('You must at least upload one file.');

			e.preventDefault();
		}
	});
});
</script>

...

<form ..>
	<div id="uploader">
		<p>You browser doesn't have Flash, Silverlight, Gears, BrowserPlus or HTML5 support.</p>
	</div>
</form>