用C语言通过AWS.NET从S3存储器中检索二进制数据#

举个例子:

string bucketName = "bucket";
string key = "some/key/name.bin";
string dest = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "name.bin");

using (AmazonS3 client = Amazon.AWSClientFactory.CreateAmazonS3Client(AWSAccessKeyID, AWSSecretAccessKeyID))
{
    GetObjectRequest getObjectRequest = new GetObjectRequest().WithBucketName(bucketName).WithKey(key);

    using (S3Response getObjectResponse = client.GetObject(getObjectRequest))
    {
        if (!File.Exists(dest))
        {
            using (Stream s = getObjectResponse.ResponseStream)
            {
                using (FileStream fs = new FileStream(dest, FileMode.Create, FileAccess.Write))
                {
                    byte[] data = new byte[32768];
                    int bytesRead = 0;
                    do
                    {
                        bytesRead = s.Read(data, 0, data.Length);
                        fs.Write(data, 0, bytesRead);
                    }
                    while (bytesRead > 0);
                    fs.Flush();
                }
            }
        }
    }
}