js 使用 put 请求 上传文件 阿里云盘

js 使用 put 请求 上传文件（阿里云盘）

<script src="https://cdn.bootcss.com/crypto-js/3.1.9-1/crypto-js.min.js"></script>

//文件hash值获取
function getHash(file) {
    return new Promise((resolve, reject) => {
        var reader = new FileReader();
        reader.onload = function (event) {
            var res = event.target.result;
            fileData = new Blob([res])
            res = CryptoJS.lib.WordArray.create(res);
            var sha1 = CryptoJS.SHA1(res).toString();
            resolve({
                hash: sha1,
                fileData: new Blob([res])
            })
        };
        reader.readAsArrayBuffer(file);
    })
}

//上传文件 url 阿里云盘 获取的上传路径 fileData 要上传的文件 blob 
function uploadFile(url,fileData) {
    return new Promise((resolve, reject) => {
        let request = new XMLHttpRequest()
        request.onreadystatechange = function () {
            if (request.readyState == 4 && request.status == 200) {
                resolve(request.getResponseHeader("etag"))
            }
        }
        request.upload.onprogress = function (e) {
            if (e.lengthComputable) {
                console.log('进度：' + e.loaded / e.total)
            }
        }
        request.open('PUT', url);
        request.setRequestHeader('Content-type', '');
        request.send(fileData);
    })
}

getHash(file).then((data)=>{
	... //获取上传文件地址省略
	uploadFile(url,data.fileData).then((etag)=>{
	 	//etag 用于合成文件的etag
	})
})

标签：function,云盘,request,js,res,put,new,fileData,上传
来源： https://blog.csdn.net/weixin_47743108/article/details/115347155