文件下载

步骤:
1、获取文件流;
2、用文件流创建url;
3、创建a标签,并自动点击
 
Download({
        filename
      })
        .then(res => {
          // console.log(res);
          let link = document.createElement("a");
          link.style.display = "none";
          link.href = window.URL.createObjectURL(res.data);
          //获取文件名称
          let attachment = res.headers["content-disposition"];
          let fileName = decodeURIComponent(
            attachment.split(";")[1].split("=")[1]
          );
          // console.log(fileName);
          link.download = fileName;

          link.click();
          window.URL.revokeObjectURL(link.href); //释放内存
        })
        .catch(err => {});
原文地址:https://www.cnblogs.com/ouyangfeifei/p/14601423.html