应对AmazonS3桶（C＃）文件夹里面 [英] Coping folder inside AmazonS3 Bucket (c#)

问题描述

我要复制一个文件夹，里面坐了所有现有文件，以AmazonS3的同一个桶里面的另一个文件夹。

I want to copy one folder, with all existing files inside it, to another folder inside AmazonS3's same Bucket.

我可以复制一个对象，但我需要的是复制文件夹，所有的文件到另一个文件夹。

I can copy one object but what i need is to copy folder, with all files, into another Folder.

推荐答案

下面是复制AmazonS3斗这对我的作品里面的文件夹中的例子。
有关详细信息，您可以检查此链接

Here is the example to copy folder inside AmazonS3 Bucket Which works for me. For more details you can check this 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;
        }

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