给 layui upload 带每个文件的进度条， .net 后台代码

 ???//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20M ???????????if (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)); ???????????} ???????}