java 使用带通配符的 S3 AmazonS3Client listObjects 前缀？
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Use S3 AmazonS3Client listObjects prefix with wildcard?
提问by mlabour
Does the AWS S3 AmazonS3Client.listObjects (http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/index.html) support wildcard? for example, can one do the following:
AWS S3 AmazonS3Client.listObjects ( http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/index.html) 是否支持通配符？例如，可以执行以下操作：
ListObjectsRequest listObjectsRequest = new ListObjectsRequest().
withBucketName("foo").
withPrefix("*/dt=2013-03-28/*").
withDelimiter("/");
回答by Viccari
No, you cannot. In fact, *is a valid character in a key name in S3. For example, a key like /foo/b*ar/dt=2013-03-28/abc.xmlis valid.
You will either need to reorganize your keys according to a common prefix or iterate over them all.
你不能。实际上，*是 S3 中键名中的有效字符。例如，像这样的键/foo/b*ar/dt=2013-03-28/abc.xml是有效的。
您要么需要根据公共前缀重新组织您的密钥，要么需要遍历所有密钥。
PS: depending on your use case, it is possible that you can use a marker.
PS：根据您的用例，您可以使用marker.
