axios请求接口后获取blob文件名

let name = res.headers["content-disposition"].split(';')[1].split('filename=')[1];

js模拟a标签下载blob

downloadFileByBlob(content, fileName) {
    const blob = new Blob([content]);
    const a = document.createElement("a");
    const url = window.URL.createObjectURL(blob);
    const filename = fileName;
    a.href = url;
    a.download = filename;
    a.click();
    window.URL.revokeObjectURL(url);
}