1、upload.js 扩展
功能利用ajax的xhr属性实现
该功能修改过modules中的upload.js文件
功能具体实现:
在js文件中添加监听函数
//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
//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) } });
修改modules中upload.js文件的ajax方法
//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(); } });
后台代码:
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)); } }
功能到此结束!!!
列子截图:
参考:http://fly.layui.com/jie/19430/
原文地址:https://www.cnblogs.com/youmingkuang/p/9183528.html
时间: 2024-10-07 06:48:18