秒客网

官网：https://cloud.tencent.com/document/product/436/11459

参考：https://blog.csdn.net/qq_40146880/article/details/102829629

一、下载SDK并引入

　　地址：https://cos-sdk-archive-1253960454.file.myqcloud.com/cos-js-sdk-v5/latest/cos-js-sdk-v5.zip?_ga=1.114550148.286138921.1586252253

　　（可前往上面官网下载）

<script src="./sdk/cos-js-sdk-v5.min.js"></script>

 

二、封装上传，cos.js

export default new (class {
    constructor() {}
    _cos(obj) {
        return new COS({
            getAuthorization: function(options, callback) {
                callback({
                    TmpSecretId: obj.credentials.tmpSecretId,
                    TmpSecretKey: obj.credentials.tmpSecretKey,
                    XCosSecurityToken: obj.credentials.sessionToken,
                    StartTime: obj.startTime, // 时间戳，单位秒，如：1580000000
                    ExpiredTime: obj.expiredTime, // 时间戳，单位秒，如：1580000000,SDK 在 ExpiredTime 时间前，不会再次调用 getAuthorization
                });
            }
        });
    }

    /**
     * 文件直传
     * @param {Object} obj Bucket、Region...，接口返回
     * @returns err || data
     */
    putObject(obj,file,callback) {
        return new Promise((resolve, reject) => {
            this._cos(obj).putObject(
                {
                    Bucket: obj.bucket, /* 必须 */
                    Region: obj.region,     /* 存储桶所在地域，必须字段 */
                    Key: obj.prefix + `${this.randomSign(3)}.${file.name.split(\'.\')[1]}`,      /* 必须 */
                    Body: file, // 上传文件对象
                },
                (err, data) => {
                    callback(err,data)
                }
            );
        });
    }
    
    /**
     * 文件分块上传
     * @param {Object} obj Bucket、Region...，接口返回
     * @returns err || data
     */
    sliceUploadFile(obj,file,callback) {
        return new Promise((resolve, reject) => {
            this._cos(obj).sliceUploadFile(
                {
                    Bucket: obj.bucket,
                    Region: obj.region,
                    Key: obj.prefix + `${this.randomSign(3)}.${file.name.split(\'.\')[1]}`,
                    Body: file,
                    onTaskReady: function(taskId) {
                        /* 执行队列taskId */
                        console.log(\'taskId:\', taskId);
                    },
                    onProgress: progressData => {
                        /* 非必须 */
                        var percent = parseInt(progressData.percent * 10000) / 100;
                        var speed = parseInt((progressData.speed / 1024 / 1024) * 100) / 100;
                        console.log(\'进度：\' + percent + \'%; 速度：\' + speed + \'Mb/s;\');
                        this.loading(\'进度：\' + parseInt(percent) + \'%\');
                    }
                },
                (err, data) => {
                    callback(err,data)
                }
            );
        });
    }

    randomSign(len) {
        return `${this.random_string(len)}-${parseInt(Math.floor(Math.random() * Date.now()) / 1000)}`;
    }

    random_string(len) {
        //获取随机名
        len = len || 32;
        let chars = \'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz\';
        let maxPos = chars.length;
        let pwd = \'\';
        for (let i = 0; i < len; i++) {
          pwd += chars.charAt(Math.floor(Math.random() * maxPos));
        }
        return pwd;
    }

    loading(text) {
        try {
          console.log(text);
        } catch (error) {
          console.log(error);
        }
    }
})();

 

三、使用

<!--vue-->
<input @change="handleChange" accept="image/*" type="file" name="" id="" />

import cos from \'@/utils/cos\'

// 请求数据
$.get(\'http://xxxxxxx\', null, function (res) {
    // res:{
    //     code: 1,
    //     data: {
    //         bucket: "dev....51007710",
    //         credentials: 
    //         {
    //             sessionToken: "GXpM....7N5Asg",
    //             tmpSecretId: "AKIDF....jB3mQ2",
    //             tmpSecretKey: "pnof....9qew8="
    //         },
    //         domain: "dev....myqcloud.com",
    //         expiration: "2020-12-24T06:46:10Z",
    //         expiredTime: 1608792370,
    //         prefix: "post/..../u/1/",
    //         region: "ap-chengdu",
    //         requestId: "cbc6....e080",
    //         startTime: 1608788770
    //     },
    //     msg: ""
    // }
    if (res.code == 1 && res.data) {
        cos._cos(res.data)
    } else{
        // error
    }
});

// 上传
handleChange(e) {
    // 这里的this.tx_data为上一步请求接口拿到的数据
    var _this = this
    if(this.tx_data){
        cos.putObject(this.tx_data,e.target.files[0],(error,data)=>{
            if(error){
                this.$message.error(\'上传失败\')
            }else{
                this.$message.success(\'上传成功\')
                let url = \'https://\'+ data.Location
                // ...
            }
        })
    }else{
        // error
    }
}