对象存储 OSS上传后回调通知

详细解答可以参考官方帮助文档

客户端在上传Object时可以指定OSS服务端在处理完上传请求后，通知您的业务服务器，在该服务器确认接收了该回调后将回调的结果返回给客户端。因为加入了回调请求和响应的过程，相比简单上传，使用回调通知机制一般会导致客户端花费更多的等待时间。

具体说明参考：Callback

代码示例：

PutObjectRequest put = new PutObjectRequest(testBucket, testObject, uploadFilePath);
put.setCallbackParam(new HashMap<String, String>() {
    {
        put("callbackUrl", "110.75.82.106/callback");
        put("callbackHost", "oss-cn-hangzhou.aliyuncs.com");
        put("callbackBodyType", "application/json");
        put("callbackBody", "{\"mimeType\":${mimeType},\"size\":${size}}");
    }
});
OSSAsyncTask task = oss.asyncPutObject(put, new OSSCompletedCallback<PutObjectRequest, PutObjectResult>() {
    @Override
    public void onSuccess(PutObjectRequest request, PutObjectResult result) {
        Log.d("PutObject", "UploadSuccess");
        // 只有设置了servercallback，这个值才有数据
        String serverCallbackReturnJson = result.getServerCallbackReturnBody();
        Log.d("servercallback", serverCallbackReturnJson);
    }
    @Override
    public void onFailure(PutObjectRequest request, ClientException clientExcepion, ServiceException serviceException) {
        // 异常处理
    }
});

如果需要支持自定义参数，参考如下设置：