实现mp4文件的下载，而不是在线播放
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
</head>
<body>
<button onclick="GetFile()">下载</button>
<script>
// 会先下载流，完成后才弹出选择目录，所以最好加上进度条
function GetFile(){
axios({
url: `http://image.wangrui8.top/dms-2019-07-22-00-00~1.mp4`,
method: 'get',
responseType: 'blob',
onDownloadProgress (progress){
// 这里是下载的进度
console.log(Math.round(progress.loaded / progress.total * 100) + '%');
},
})
.then(res=>{
let blobUrl = window.URL.createObjectURL(res.data);
let link = document.createElement('a');
document.body.appendChild(link);
link.href = blobUrl;
link.download = '下载文件.mp4';
link.click();
window.URL.revokeObjectURL(blobUrl);
})
}
</script>
</body>
</html>