使用android SDK将文件直接上传到存储桶中的文件夹

Question

我使用以下代码将文件上传到S3存储桶：

//upload code start
AWSCredentials credential = new BasicAWSCredentials(AppConstants.AWS_ACCESS_KEY_ID, AppConstants.AWS_SECRET_ACCESS_ID);
TransferManager manager = new TransferManager(credential);
// Transfer a file to an S3 bucket.
Upload upload = manager.upload("bucket_name", AppConstants.AWS_ACCESS_KEY_ID, file);
while (!upload.isDone()) {
    Thread.sleep(200);
}
//upload code end

我想把它放到名为＆＃34; android_uploads＆＃34;的目录中。在我的存储桶中，但传输管理器正在将所有文件上传到存储桶的根目录。

知道如何实现这一目标吗？

Answer 1

您对upload（）的调用不正确。应该是这样的：

Upload upload = manager.upload("bucket_name", "android_uploads/" + fileName, file);

Answer 2

Upload upload = manager.upload("bucket_name","filePath where to be stored in bucket sub folder or directly to the bucket", file);

Answer 3

您应该可以通过简单的代码将任何文件类型上传到Amazon s3，如下所示：

PutObjectRequest por = new PutObjectRequest(
                                BUCKET_NAME, Key,
                                file);

por.setCannedAcl(CannedAccessControlList.PublicReadWrite);
                        s3Client.putObject(por);

我尝试使用此代码进行图像和文本文件上传。