//创建监听函数var xhrOnProgress=function(fun) {xhrOnProgress.onprogress = fun; //绑定监听//使用闭包实现监听绑return function() {//通过$.ajaxSettings.xhr();获得XMLHttpRequest对象var xhr = $.ajaxSettings.xhr();//判断监听函数是否为函数if (typeof xhrOnProgress.onprogress !== 'function')return xhr;//如果有监听函数并且xhr对象支持绑定时就把监听函数绑定上去if (xhrOnProgress.onprogress && xhr.upload) {xhr.upload.onprogress = xhrOnProgress.onprogress;}return xhr;}}

//初始化上传
 upload.render({elem: '上传地址',url: path+'/upload/uploadVideo.do',accept: 'video',size: 512000,auto:false,xhr:xhrOnProgress,progress:function(value){//上传进度回调 value进度值element.progress('demo', value+'%')//设置页面进度条
     },bindAction:'#uploadvideo',before: function(input){//返回的参数item，即为当前的input DOM对象console.log('文件上传中');},done: function(res){//上传成功
           console.log(res)}});

 //提交文件
        $.ajax({url: options.url,type: options.method,data: formData,contentType: false ,processData: false,dataType: 'json',xhr:options.xhr(function(e){//此处为新添加功能var percent=Math.floor((e.loaded / e.total)*100);//计算百分比options.progress(percent);//回调将数值返回
           }),success: function(res){successful++;done(index, res);allDone();},error: function(e){console.log(e)aborted++;that.msg('请求上传接口出现异常');error(index);allDone();}});

        public ActionResult UploadFiles(HttpPostedFileBase fileNames){string path = "";//小于20Mif (fileNames.ContentLength > 0 && fileNames.ContentLength <= 120971520){var fileName = Path.GetFileName(fileNames.FileName);string q_FN = fileName.Substring(0, fileName.LastIndexOf("."));string h_FN = fileName.Substring(fileName.LastIndexOf("."));string NewFileName = q_FN + DateTime.Now.ToString("yyyyMMddHHmmss") + h_FN;path = Path.Combine(Server.MapPath("/Uploadfile/"), NewFileName);fileNames.SaveAs(path);path = "/Uploadfile/" + NewFileName;var relt = new { tc = path };return Content(JsonConvert.SerializeObject(relt));}else{var relt = new { tc = "上传文件要小于20M" };return Content(JsonConvert.SerializeObject(relt));}}