file Download 监听文件下载完成状态

下载 fileDonwload.js

https://www.bootcdn.cn/jquery.fileDownload/

页面中使用

            var url = '@Url.Action("ExcelExportDashboard", "KPITable")';
            var dat = { month: month, dataType: valueType };
            var data = dat;
            $.fileDownload(url, {
                httpMethod: 'GET',
                data: data,
                prepareCallback: function (url) {
                    $("#downloadingID").removeClass("glyphicon-download-alt excel-download2").addClass("clickstate excel-download_Loading");
                },
                successCallback: function (url) {
                    $("#downloadingID").removeClass("clickstate excel-download_Loading").addClass("glyphicon-download-alt excel-download2");
                },
                failCallback: function (html, url) {
                    // 相关业务代码--这里引入了layer
                    alert("下载失败");
                }
            });

后台

  HttpCookie aCookie = new HttpCookie("fileDownload", "true");
            aCookie.Path = "/";
            aCookie.Expires = DateTime.Now.AddDays(1);
            Response.Cookies.Add(aCookie);
　　　　return File(stream.ToArray(), "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", Server.UrlEncode(fileName));
  }

 

 

参考：

https://blog.csdn.net/qq_35477390/article/details/126045725