页面代码如下：
<link href="JS/jquery.uploadify/uploadify.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="JS/jquery.min.js"></script> <script type="text/javascript" src="JS/jquery.uploadify/jquery.uploadify.min.js"></script> <script type="text/javascript"> $(function () { $("#uploadify").uploadify({ 'swf': '/JS/jquery.uploadify/uploadify.swf', 'uploader': 'UploadHandler.ashx', 'buttonImage': '/img/bgimg.jpg', 'auto': true, 'multi': true, 'queueID': 'fileQueue', 'width': 157, 'height': 45, 'fileSizeLimit': '50MB', 'fileTypeExts': '*.docx;*.doc;*.ppt;*.pptx;*.pdf;*.caj;*.txt;*.rar;*.zip;*.jpg;*.gif;', 'fileTypeDesc:': '请选择docx doc ppt pptx pdf caj txt rar zip jpg gif文件', 'progressData': 'all', 'removeCompleted': false, 'overrideEvents': ['onSelectError', 'onDialogClose'], //返回一个错误，选择文件的时候触发 'onSelectError': function (file, errorCode, errorMsg) { switch (errorCode) { case -100: alert("上传的文件数量已经超出系统限制的" + $('#uploadify').uploadify('settings', 'queueSizeLimit') + "个文件！"); break; case -110: alert("文件 [" + file.name + "] 大小超出系统限制的" + $('#uploadify').uploadify('settings', 'fileSizeLimit') + "大小！"); break; case -120: alert("文件 [" + file.name + "] 大小异常！"); break; case -130: alert("文件 [" + file.name + "] 类型不正确！"); break; } return true; }, //检测FLASH失败调用 'onFallback': function () { alert("您未安装FLASH控件，无法上传图片！请安装FLASH控件后再试。"); } }); }); </script>
<body> <p> <a href="javascript:$('#uploadify').uploadifyUpload()">上传</a>| <a href="javascript:$('#uploadify').uploadifyClearQueue()">取消上传</a> </p> <input type="file" name="uploadify" id="uploadify" /> <div id="fileQueue" style=""></div> </body>
处理文件UploadHandler.ashx.cs代码如下：
/// <summary> /// $codebehindclassname$ 的摘要说明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class UploadHandler : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; context.Response.Charset = "utf-8"; HttpPostedFile file = context.Request.Files["Filedata"]; string uploadPath = HttpContext.Current.Server.MapPath(@context.Request["folder"])+"\"; if (file != null) { if (!Directory.Exists(uploadPath)) { Directory.CreateDirectory(uploadPath); } file.SaveAs(uploadPath + file.FileName); //下面这句代码缺少的话，上传成功后上传队列的显示不会自动消失 context.Response.Write("1"); } else { context.Response.Write("0"); } } public bool IsReusable { get { return false; } } }