将文件从amazon s3帐户传输到另一个帐户

本文关键字：传输 另一个 s3 文件 amazon | 更新日期: 2023-09-27 18:10:01

我正在编写一个应用程序，我们需要在不同的s3帐户之间传输文件，我们不想在上传到目标s3帐户之前将文件保存在本地。
因此，我们使用以下命令获取源文件流:

public Stream GetFileStream(string path)
{
    var pathPieces = path.Split('/');
    string bucket = pathPieces[0];
    string fileName = pathPieces[pathPieces.Length - 1];
    GetObjectRequest request = new GetObjectRequest();
    request.BucketName = bucket;
    request.Key = fileName;
    GetObjectResponse response = Client.GetObject(request);
    return response.ResponseStream;
}

之后，我们使用这个流上传到目的地:

    TransferUtility transferUtility = new TransferUtility(Client);
    transferUtility.S3Client.PutBucket(new PutBucketRequest() { UseClientRegion = true }.WithBucketName(bucket));
    TransferUtilityUploadRequest request = new TransferUtilityUploadRequest()
    .WithBucketName(bucket)
    .WithKey(key)
    .WithPartSize(1024)
    .WithTimeout(100 * 60 * 60 * 1000)
    .WithAutoCloseStream(true)
    .WithCannedACL(S3CannedACL.PublicReadWrite)
    .WithInputStream(fileStream) as TransferUtilityUploadRequest;
    transferUtility.Upload(request);

但是在最后一行"上传"函数调用我总是得到这个错误:

是否有不同的方法来做我正在尝试做的事情?因为它的拼接方式不对

将文件从amazon s3帐户传输到另一个帐户

我遇到了这个问题，并发布了我用来解决它的方法。从乔恩·斯基特那里借了些代码。它对我有用，但我知道它有点笨拙，可能还可以改进。

string filename = "nameoffiletocopy"
using (Stream stream = GetS3Stream(filename))
{
    AmazonS3Config config = new AmazonS3Config 
        {CommunicationProtocol = Protocol.HTTP};
    AmazonS3 client = 
        AWSClientFactory.CreateAmazonS3Client(
            "destinationaccesskey",
            "destinationsecretacceskey", 
            config);
    string destinationBucketName = "destinationbucketname";
    PutObjectRequest request = new PutObjectRequest
    {
        BucketName = destinationBucketName,
        InputStream = stream,
        Key = filename,
        CannedACL = S3CannedACL.PublicRead
    };
    PutObjectResponse response = client.PutObject(request);     
}
private static Stream GetS3Stream(string filename)
{
    AmazonS3Config config = new AmazonS3Config 
        {CommunicationProtocol = Protocol.HTTP};
    AmazonS3 client = AWSClientFactory.CreateAmazonS3Client(
        "sourceaccesskey",
        "sourcesecretacceskey", 
        config);
    string sourceBucketName = "sourcebucketname";
    GetObjectRequest request = new GetObjectRequest 
        {
            BucketName = sourceBucketName, 
            Key = filename
        };
    using (GetObjectResponse response = client.GetObject(request))
    {
        byte[] binaryData = 
        ReadFully(response.ResponseStream, -1);
        //ReadyFully from Jon Skeet's blog
        return new MemoryStream(binaryData);
    }
}

readfull方法的详细解释

我真的不认为有办法在账户之间转账。我所知道的唯一能做到这一点的协议是FXP。您可以在将来向AWS请求这样做，这将是一个很好的功能。

Amazon有一个复制对象请求

AmazonS3Client client = new AmazonS3Client();
CopyObjectRequest request = new CopyObjectRequest {
      SourceBucket = "fromBucket",
      SourceKey = "fromFile",
      DestinationBucket = "toBucket",
      DestinationKey = "toFilename",
      CannedACL = S3CannedACL.BucketOwnerFullControl
 };
 CopyObjectResponse response = client.CopyObject(request);
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