Uploading S3 using AWS SDK Java

问题

my current setup is like this

  AmazonS3 s3Client = new AmazonS3Client();

  InputStream stream = new URL(filePath).openStream();

  ObjectMetadata objectMetadata = new ObjectMetadata();
  PutObjectRequest putObjectRequest = new PutObjectRequest(amazonFileUploadLocationOriginal, keyName, stream, objectMetadata);

  PutObjectResult result = s3Client.putObject(putObjectRequest);

And I'm always getting this error

java.lang.IllegalStateException: Content has been consumed

And I know it is caused by calling

 HttpEntity.getContent()

multiple times

But I can't seem to debug/find where it is being called multiple times

回答1:

From PutObjectRequest doc

metadata - The object metadata. At minimum this specifies the content length for the stream of data being uploaded.

I had never used an input stream from an URL, but looks like you are missing the "length for the stream".

回答2:

Since you are uploading from a file, you could use this constructor for the PutObjectRequest:

 File theFile = new File(filePath);
 PutObjectRequest putObjectRequest = new PutObjectRequest(amazonFileUploadLocationOriginal, keyName, theFile);
 putObjectRequest.withMetadata(objectMetadata);

来源：https://stackoverflow.com/questions/24549685/uploading-s3-using-aws-sdk-java