在 Amazon S3 存储桶中复制文件夹（c#）答案

【问题标题】：Coping folder inside AmazonS3 Bucket (c#)在 Amazon S3 存储桶中复制文件夹（c#）
【发布时间】：2016-05-04 13:12:30
【问题描述】：

我想将一个包含所有现有文件的文件夹复制到 AmazonS3 的同一个存储桶中的另一个文件夹。

我可以复制一个对象，但我需要将包含所有文件的文件夹复制到另一个文件夹中。

【问题讨论】：

标签： c# asp.net-mvc amazon-web-services amazon-s3 amazon

【解决方案1】：

这是在 AmazonS3 Bucket 中复制文件夹的示例，这对我有用。更多详情可以查看link

  public bool CopyFolderInsideS3Bucket(string source, string destination)
        {
            var strippedSource = source;
            var strippedDestination = destination;

            // process source
            if (strippedSource.StartsWith("/"))
                strippedSource = strippedSource.Substring(1);
            if (strippedSource.EndsWith("/"))
                strippedSource = source.Substring(0, strippedSource.Length - 1);

            var sourceParts = strippedSource.Split('/');
            var sourceBucket = sourceParts[0];

            var sourcePrefix = new StringBuilder();
            for (var i = 1; i < sourceParts.Length; i++)
            {
                sourcePrefix.Append(sourceParts[i]);
                sourcePrefix.Append("/");
            }

            // process destination
            if (strippedDestination.StartsWith("/"))
                strippedDestination = destination.Substring(1);
            if (strippedDestination.EndsWith("/"))
                strippedDestination = destination.Substring(0, strippedDestination.Length - 1);

            var destinationParts = strippedDestination.Split('/');
            var destinationBucket = destinationParts[0];

            var destinationPrefix = new StringBuilder();
            for (var i = 1; i < destinationParts.Length; i++)
            {
                destinationPrefix.Append(destinationParts[i]);
                destinationPrefix.Append("/");
            }

            var listObjectsResult = client.ListObjects(new ListObjectsRequest(){ 
                BucketName = sourceBucket,
                Prefix = sourcePrefix.ToString(),
                Delimiter = "/"});

            // copy each file
            foreach (var file in listObjectsResult.S3Objects)
            {
                var request = new CopyObjectRequest();
                request.SourceBucket = Settings.BucketName;
                request.SourceKey = file.Key;
                request.DestinationBucket = destinationBucket;
                request.DestinationKey = destinationPrefix + file.Key.Substring(sourcePrefix.Length);
                request.CannedACL = S3CannedACL.PublicRead;
                var response = (CopyObjectResponse)client.CopyObject(request);
            }

            // copy subfolders
            foreach (var folder in listObjectsResult.CommonPrefixes)
            {
                var actualFolder = folder.Substring(sourcePrefix.Length);
                actualFolder = actualFolder.Substring(0, actualFolder.Length - 1);
                CopyFolderInsideS3Bucket(strippedSource + "/" + actualFolder, strippedDestination + "/" + actualFolder);
            }

            return true;
        }

【讨论】：

【解决方案2】：

您可以在亚马逊版本 3.1.5 .net 3.5 这个类的 copyTo 方法中使用 S3DirectoryInfo 类。

我使用以下示例 C# 代码通过 C# .net 3.5 和亚马逊版本 3.1.5 从 NTFS 文件路径复制到 AmazonS3：

   BasicAWSCredentials basicCredentials = new BasicAWSCredentials("your access key", "your secret key");
            AmazonS3Config configurationClient = new AmazonS3Config();
            configurationClient.RegionEndpoint = RegionEndpoint.EUCentral1;
            try
            {
                using (AmazonS3Client clientConnection = new AmazonS3Client(basicCredentials, configurationClient))
                {
                    S3DirectoryInfo source = new S3DirectoryInfo(clientConnection, "sourcebucketname", "sourcefolderkey");
                    S3DirectoryInfo target = new S3DirectoryInfo(clientConnection, "sourcebucketname", "destinationfolderkey");
                    source.CopyTo(target);

                }
            }
            catch(Exception ex)
            {

            }

【讨论】：