S3从特定文件夹下载 [英] S3 Download from a specific folder

问题描述

我的s3存储桶中有两个文件夹. 如何仅从bucket_one下载所有文件.

I have two folders inside my s3 bucket. How can I download all the files only from only bucket_one.

这是我用来从存储桶下载的代码. 现在，我想从该存储桶中的文件夹下载.

This is the code I am using to download from bucket. Now I want to download from a folder inside that bucket.

GetObjectRequest request = new GetObjectRequest(BucketName(),KeyName());
       S3Object object = s3Client.getObject(request);
       S3ObjectInputStream objectContent = object.getObjectContent();
       IOUtils.copy(objectContent, new FileOutputStream(System.getProperty("user.home")+"//downloads//"+KeyName()));

谢谢

推荐答案

只需指出相关文件夹的完整路径

Just indicate the full path of the folder in question

将您的BucketName()方法更改为类似于folderName()的方式，该方式将为bucketName() + "/" + <yourfolder> + "/"

Change your BucketName() method to be something like folderName() which will be bucketName() + "/" + <yourfolder> + "/"

最后的"/"很重要，否则S3将在您的存储桶根文件夹中搜索文件

the "/" is important at the end otherwise S3 will search for a file within your bucket root folder

您可以使用它来更深入地了解文件夹结构:bucketName() + "/" + <folder1> + "/" + <folder2> + "/"

You can use the same to go deeper in your folder structure : bucketName() + "/" + <folder1> + "/" + <folder2> + "/"

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