(function ($, window) {　　　　var applicationPath = window.applicationPath === "" ? "" : window.applicationPath || "../..";　　　　function S4() {　　　　　　return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);　　　　} function initWebUpload(item, options) {   if (!WebUploader.Uploader.support()) {   var error = "上傳控件不支持您的瀏覽器！請嘗試升級flash版本或者使用Chrome引擎的瀏覽器。<a target='_blank' ;   if (window.console) {    window.console.log(error);   }   $(item).text(error);   return;  }   var defaults = {   hiddenInputId: "uploadifyHiddenInputId", // input hidden id   onAllComplete: function (event) { }, // 當所有file都上傳后執行的回調函數   onComplete: function (event) { },// 每上傳一個file的回調函數   innerOptions: {},   fileNumLimit: undefined,   fileSizeLimit: undefined,   fileSingleSizeLimit: undefined,   PostbackHold: false  };   var opts = $.extend({}, defaults, options);  var hdFileData = $("#" + opts.hiddenInputId);   var target = $(item);//容器  var pickerid = "";  if (typeof guidGenerator36 != 'undefined')//給一個唯一ID   pickerid = guidGenerator36();  else   pickerid = (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);   var uploaderStrdiv = '<div class="webuploader">' +   '<div id="thelist" class="uploader-list"></div>' +   '<div class="btns">' +   '<div id="' + pickerid + '">選擇文件</div>' +   //'<a id="ctlBtn" class="btn btn-default">開始上傳</a>' +   '</div>' +  '</div>';  target.append(uploaderStrdiv);   var $list = target.find('#thelist'),    $btn = target.find('#ctlBtn'),//這個留著，以便隨時切換是否要手動上傳    state = 'pending',    uploader;   var jsonData = {   fileList: []  };   var webuploaderoptions = $.extend({    // swf文件路徑   swf: applicationPath + '/Scripts/lib/webuploader/Uploader.swf',    // 文件接收服務端。   server: applicationPath + '/MvcPages/WebUploader/Process',    // 選擇文件的按鈕。可選。   // 內部根據當前運行是創建，可能是input元素，也可能是flash.   pick: '#' + pickerid,    // 不壓縮image, 默認如果是jpeg，文件上傳前會壓縮一把再上傳！   resize: false,   fileNumLimit: opts.fileNumLimit,   fileSizeLimit: opts.fileSizeLimit,   fileSingleSizeLimit: opts.fileSingleSizeLimit  },  opts.innerOptions);  var uploader = WebUploader.create(webuploaderoptions); 　　　　　　//回發時還原hiddenfiled的保持數據　　　　　　var fileDataStr = hdFileData.val();　　　　　　if (fileDataStr && opts.PostbackHold) {　　　　　　　　jsonData = JSON.parse(fileDataStr);　　　　　　$.each(jsonData.fileList, function (index, fileData) {　　　　　　var newid = S4();　　　　　　fileData.queueId = newid;　　　　　　$list.append('<div id="' + newid + '" class="item">' +　　　　　　　　'<div class="info">' + fileData.name + '</div>' +　　　　　　　　'<div class="state">已上傳</div>' +　　　　　　　　'<div class="del"></div>' +　　　　　　　　'</div>');　　　　　　});　　　　　　hdFileData.val(JSON.stringify(jsonData));　　　　　　}   uploader.on('fileQueued', function (file) {//隊列事件   $list.append('<div id="' + file.id + '" class="item">' +    '<div class="info">' + file.name + '</div>' +    '<div class="state">等待上傳...</div>' +    '<div class="del"></div>' +   '</div>');  });  uploader.on('uploadProgress', function (file, percentage) {//進度條事件   var $li = target.find('#' + file.id),    $percent = $li.find('.progress .bar');    // 避免重復創建   if (!$percent.length) {    $percent = $('<span class="progress">' +     '<span class="percentage"><span class="text"></span>' +     '<span class="bar" role="progressbar" style="width: 0%">' +     '</span></span>' +    '</span>').appendTo($li).find('.bar');   }    $li.find('div.state').text('上傳中');   $li.find(".text").text(Math.round(percentage * 100) + '%');   $percent.css('width', percentage * 100 + '%');  });  uploader.on('uploadSuccess', function (file, response) {//上傳成功事件   target.find('#' + file.id).find('div.state').text('已上傳');   var fileEvent = {    queueId: file.id,    name: file.name,    size: file.size,    type: file.type,    filePath: response.filePath   };   jsonData.fileList.push(fileEvent)   opts.onComplete(fileEvent);   });   uploader.on('uploadError', function (file) {   target.find('#' + file.id).find('div.state').text('上傳出錯');  });   uploader.on('uploadComplete', function (file) {//全部完成事件   target.find('#' + file.id).find('.progress').fadeOut();   var fp = $("#" + opts.hiddenInputId);   fp.val(JSON.stringify(jsonData));   opts.onAllComplete(jsonData.fileList);  });   uploader.on('fileQueued', function (file) {   uploader.upload();  });   uploader.on('filesQueued', function (file) {   uploader.upload();  });   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('暫停上傳');   } else {    $btn.text('開始上傳');   }  });   $btn.on('click', function () {   if (state === 'uploading') {    uploader.stop();   } else {    uploader.upload();   }  });  //刪除  $list.on("click", ".del", function () {   var $ele = $(this);   var id = $ele.parent().attr("id");   var deletefile = {};   $.each(jsonData.fileList, function (index, item) {    if (item && item.queueId === id) {　　　　　　　　　　　　　　uploader.removeFile(uploader.getFile(id));//不要遺漏     deletefile = jsonData.fileList.splice(index, 1)[0];     $("#" + opts.hiddenInputId).val(JSON.stringify(jsonData));     $.post(applicationi + "/Webploader/Delete", { 'filepathname': deletefile.filePath }, function (returndata) {      $ele.parent().remove();     });     return;    }   });  });  }   $.fn.powerWebUpload = function (options) {  var ele = this;  if (typeof PowerJs != 'undefined') {   $.lazyLoad(applicationPath + "/Scripts/lib/webuploader/webuploader.css", function () { }, 'css');   $.lazyLoad(applicationPath + "/Scripts/lib/webuploader/webuploader.min.js", function () {    initWebUpload(ele, options);   });  }  else {   initWebUpload(ele, options);  } }})(jQuery, window);

<div id="uploader"></div><asp:HiddenField ID="hfFilePath" ClientIDMode="Static" runat="server" /> 

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Web;using System.Web.Mvc;public class WebUploaderController : BaseController {  public ActionResult Process(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)  {   string filePathName = string.Empty;string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "Upload//Document");   if (Request.Files.Count == 0)   {    return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失敗" }, id = "id" });   }   try   {    filePathName = //自己在這里處理文件保存并返回需要保存到hidden的數據，文件在file或者Request.Files[0]   }   catch (Exception)   {    return Json(new { jsonrpc = 2.0, error = new { code = 103, message = "保存失敗" }, id = "id" });   }   return Json(new   {    jsonrpc = "2.0",    id = "id",    filePath = urlPath + "/" + filePathName   });  }　　　　 static string urlPath = "../../Upload/Document";   public ActionResult Delete(string filePathName)  {   if (string.IsNullOrEmpty(filePathName))   {    return Content("no");   }   //為了安全 檢查一下路徑 不夠嚴謹 自行更具業務做更加細致的判斷   if (!filePathName.StartsWith(urlPath) ||    filePathName.Substring(6, filePathName.Length - 7).Contains("../"))   {    return Content("no!");   }   string localFilePathName = this.Server.MapPath(filePathName);    try   {    bool b = UploadifyManager.DeleteAttachment(localFilePathName);    if (!b) throw new Exception("刪除文件失敗");     return Content("ok");   }   catch   {    return Content("no");   }  } }