阿里云视频上传

上传方式：上传地址和凭证方式

• 客户端向AppServer发送请求，AppServer通过OpenAPI向阿里云视频点播服务发送CreateUploadVideo请求。请求成功将返回上传地址、上传凭证以及VideoId，AppServer将结果返回给客户端

操作步骤

1. 在页面引入JavaScript脚本

<!--  IE需要es6-promise -->
  <script src="../lib/es6-promise.min.js"></script>
  <script src="../lib/aliyun-oss-sdk6.10.0.min.js"></script>
  <script src="../aliyun-vod-upload-sdk1.5.2.min.js"></script>

2. 初始化上传实例

• 请求获取的上传地址和凭证初始化时无需设置，在上传开始后触发的onUploadStarted回调中调用setUploadAuthAndAddress(uploadFileInfo, uploadAuth, uploadAddress,videoId)方法进行设置

• 当Token超时，会触发onUploadTokenExpired回调，需要调用resumeUploadWithAuth(uploadAuth)方法，设置新的上传凭证继续上传

var uploader = new AliyunUpload.Vod({
       //userID，必填，只需有值即可。
       userId:"122",
       //分片大小默认1 MB，不能小于100 KB
       partSize: 1048576,
     //并行上传分片个数，默认5
       parallel: 5,
     //网络原因失败时，重新上传次数，默认为3
     retryCount: 3,
     //网络原因失败时，重新上传间隔时间，默认为2秒
     retryDuration: 2,
     //是否上报上传日志到视频点播，默认为true
     enableUploadProgress: true,
      //开始上传
      'onUploadstarted': function (uploadInfo) {
        log("onUploadStarted:" + uploadInfo.file.name + ", endpoint:" + uploadInfo.endpoint + ", bucket:" + uploadInfo.bucket + ", object:" + uploadInfo.object);
    //上传方式1，需要根据uploadInfo.videoId是否有值，调用视频点播的不同接口获取uploadauth和uploadAddress，如果videoId有值，调用刷新视频上传凭证接口，否则调用创建视频上传凭证接口
    if (uploadInfo.videoId) {
            //如果uploadInfo.videoId存在，调用刷新视频上传凭证接口
         }
     else{
            //如果uploadInfo.videoId不存在，调用获取视频上传地址和凭证接口
      //从视频点播服务获取的uploadAuth、uploadAddress和videoId，设置到SDK里
         uploader.setUploadAuthAndAddress(uploadInfo, uploadAuth, uploadAddress,videoId);
         }
      },
      //文件上传成功
      'onUploadSucceed': function (uploadInfo) {
        log("onUploadSucceed: " + uploadInfo.file.name + ", endpoint:" + uploadInfo.endpoint + ", bucket:" + uploadInfo.bucket + ", object:" + uploadInfo.object);
      },
      //文件上传失败
      'onUploadFailed': function (uploadInfo, code, message) {
        log("onUploadFailed: file:" + uploadInfo.file.name + ",code:" + code + ", message:" + message);
      },
      //文件上传进度，单位：字节
      'onUploadProgress': function (uploadInfo, totalSize, loadedPercent) {
          log("onUploadProgress:file:" + uploadInfo.file.name + ", fileSize:" + totalSize + ", percent:" + Math.ceil(loadedPercent * 100) + "%");
      },
      //上传凭证超时
      'onUploadTokenExpired': function (uploadInfo) {
          console.log("onUploadTokenExpired");
      //实现时，根据uploadInfo.videoId调用刷新视频上传凭证接口重新获取UploadAuth
      //从点播服务刷新的uploadAuth，设置到SDK里

      uploader.resumeUploadWithAuth(uploadAuth);
      },
    //全部文件上传结束
    'onUploadEnd':function(uploadInfo){
           console.log("onUploadEnd: uploaded all the files");
       }
});

3.上传操作方式

• 添加上传文件

uploader.addFile(file);

• 开始上传

uploader.startUpload();

• 停止上传

uploader.stopUpload();

• 删除上传文件 (index对应listFiles接口返回列表中元素的索引)

uploader.deleteFile(index);

• 获取上传文件列表

uploader.listFiles();