如何使用 .net sdk 下载 s3 存储桶中存在的整个文件夹。尝试使用以下代码,它会抛出无效密钥。我需要下载存储桶中存在的嵌套 pesudo 文件夹中存在的所有文件,并将文件下载限制删除为默认值 1000。
public static void DownloadFile()
{
var client = new AmazonS3Client(keyId, keySecret, bucketRegion);
ListObjectsV2Request request = new ListObjectsV2Request
{
BucketName = bucketName + "/private/TargetFolder",
MaxKeys = 1000
};
try
{
ListObjectsV2Response bucketResponse = client.ListObjectsV2(request);
foreach (S3Object o in bucketResponse.S3Objects)
{
var getRequest = new GetObjectRequest
{
BucketName = bucketResponse.Name + "/private/TargetFolder",
Key = bucketResponse.Name +"/private/TargetFolder/"+ o.Key
};
var response = client.GetObject(getRequest);
response.WriteResponseStreamToFile(downloadLocation + "\\" + o.Key);
var responseCode = response.HttpStatusCode;
if (response.HttpStatusCode == System.Net.HttpStatusCode.OK)
{
Console.WriteLine($"Success downloaded : {o.Key}");
}
else if (response.HttpStatusCode == System.Net.HttpStatusCode.RequestTimeout)
{
Console.WriteLine("Request Timeout error.");
}
else if (response.HttpStatusCode == System.Net.HttpStatusCode.ServiceUnavailable)
{
Console.WriteLine("Service Unavailable.");
}
else if (response.HttpStatusCode == System.Net.HttpStatusCode.InternalServerError)
{
Console.WriteLine("Internal Server error.");
}
else
{
Console.WriteLine("Please check the provided AWS Credentials.");
}
}
}
catch (AmazonS3Exception amazonS3Exception)
{
if (amazonS3Exception.ErrorCode != null &&
(amazonS3Exception.ErrorCode.Equals("InvalidAccessKeyId") || amazonS3Exception.ErrorCode.Equals("InvalidSecurity")))
{
Console.WriteLine("Please check the provided AWS Credentials.");
}
else
{
Console.WriteLine(amazonS3Exception.Message);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.ReadLine();
}
提前致谢!
如果你总是得到 0S3Objects.Count,尝试不使用分隔符财产:
public async Task DownloadDirectoryAsync()
{
var bucketRegion = RegionEndpoint.USEast2;
var credentials = new BasicAWSCredentials(accessKey, secretKey);
var client = new AmazonS3Client(credentials, bucketRegion);
var bucketName = "bucketName";
var request = new ListObjectsV2Request
{
BucketName = bucketName,
Prefix = "directorey/",
MaxKeys = 1000
};
var response = await client.ListObjectsV2Async(request);
var utility = new TransferUtility(s3Client);
var downloadPath = "c:\\your_folder";
foreach (var obj in response.S3Objects)
{
utility.Download($"{downloadPath}\\{obj.Key}", bucketName, obj.Key);
}
}
当然,你需要s3:列表桶允许
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