function

实现文件下载

getFile(fileUrl) {
    //在本页打开窗口
    let that = this;
    var x = new XMLHttpRequest();
    x.open("GET", fileUrl, true);
    x.responseType = "blob";
    x.onprogress = function(event) {
    //在这里监听文件下载的进度
    };
    x.onload = function(e) {
    var url = window.URL.createObjectURL(x.response);
    var a = document.createElement("a");
    a.href = url;
    a.download = fileUrl.substring(fileUrl.lastIndexOf('/')+1);
    a.click();
    };
    x.send();
  },