效果图：
首先引入：
<script src="assets/js/jquery-1.8.2.min.js"></script>
<!--引入uploadify-->
<script type="text/Javascript" src="plugins/uploadify/jquery.uploadify.js"></script>
<link type="text/css" href="plugins/uploadify/uploadify.css" rel="stylesheet" />
HTML代码：
<table class="table table-bordered table-striped"><tbody><tr class="odd gradeC"><td>上传图片列表：</td><td style="text-align: left"><div id="fileQueue" class="fileQueue" style="width: 670px; height: 100px;"></div></td><td><input type="file" name="file_upload" id="file_upload" /></td></tr><tr class="even gradeX"><td colspan="3"><p><input type="button" class="btn btn-info" id="btnUpload" οnclick="doUpload()" value="上传" /><input type="button" class="btn btn-info" id="btnCancelUpload" οnclick="$('#file_upload').uploadify('cancel')" value="取消" /></p><div id="div_show_files"></div></td></tr></tbody></table>
JS代码：
<script type="text/javascript">$(function () {var guid = '<%=Request["guid"] %>';var type = '<%=Request["type"] %>';if (guid == null || guid == "") {guid = newGuid();}if (type != null) {type = type + '/';}var returnImgUrl = "";$('#file_upload').uploadify({'swf': 'plugins/uploadify/uploadify.swf', //FLash文件路径'buttonText': '浏 览', //按钮文本'uploader': 'uploadhandler.ashx?guid=' + guid, //处理ASHX页面'formData': { 'folder': 'picture', 'isCover': 1 }, //传参数'queueID': 'fileQueue', //队列的ID'queueSizeLimit': 999,//队列最多可上传文件数量，默认为999'auto': false, //选择文件后是否自动上传，默认为true'multi': true, //是否为多选，默认为true'removeCompleted': true, //是否完成后移除序列，默认为true'fileSizeLimit': '0',//单个文件大小，0为无限制，可接受KB,MB,GB等单位的字符串值'fileTypeDesc': 'All Files', //文件描述'fileTypeExts': '*.jpg;*.png;*.gif;*.bmp',//上传的文件后缀过滤器'onQueueComplete': function (queueData) {//所有队列完成后事件if (queueData.filesQueued > 0) {alert("上传完毕！");alert(returnImgUrl);}},'onError': function (event, queueId, fileObj, errorObj) {alert(errorObj.type + "：" + errorObj.info);},'onUploadStart': function (file) {},'onUploadSuccess': function (file, data, response) { //一个文件上传成功后的响应事件处理// var data = $.parseJSON(data);//如果data是json格式//var errMsg = "";//alert(file);returnImgUrl += data;// alert(returnImgUrl);if ($.parseJSON(data) == 2) {alert("目录UpLoadImg/Test不存在或名称不对！"); return false;}}});});function newGuid() {var guid = "";for (var i = 1; i <= 32; i++) {var n = Math.floor(Math.random() * 16.0).toString(16);guid += n;if ((i == 8) || (i == 12) || (i == 16) || (i == 20))guid += "-";}return guid;}//执行上传function doUpload() {$('#file_upload').uploadify('upload', '*');}</script>
UploadHandler.ashx中代码:
public class UploadHandler : IHttpHandler{public void ProcessRequest(HttpContext context){context.Response.ContentType = "text/plain";context.Request.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");context.Response.Charset = "UTF-8";try{if (context.Request.Files.Count > 0){string goodspath = HttpContext.Current.Server.MapPath("UpLoadImg/Test"); //用来生成文件夹if (!Directory.Exists(goodspath)){Directory.CreateDirectory(goodspath);}else{//返回图片路径var returnImgUrl = string.Empty;//如果上传路径存在HttpPostedFile file = context.Request.Files["Filedata"];string imgname = file.FileName;string imgType = imgname.Substring(imgname.LastIndexOf(".") + 1);string quanname = Guid.NewGuid() + "." + imgType;string filePath = bine(goodspath, quanname);returnImgUrl = "UpLoadImg/Test/" + quanname + ";";file.SaveAs(filePath);context.Response.Write(returnImgUrl);}}}catch (Exception ex){}}public bool IsReusable{get{return false;}}}
