问题描述
我想使用亚马逊S3的Java API来实现移动操作。
I'm trying to implement a move operation using the Amazon S3 Java API.
我遇到的问题是， CopyObjectResult 通过对象返回的 AmazonS3Client.copyObject 方法似乎并不有关于wiether操作成功与否的明确指标。
The problem I am having is that the CopyObjectResult object returned by the AmazonS3Client.copyObject method doesn't seem to have a clear indicator about wiether the operation was successful or not.
由于此操作，我将要删除的文件后，我想，以确保操作成功。
Given that after this operation I am going to be deleting a file, I'd want to make sure that the operation was successful.
有什么建议？
推荐答案
这是我落得这样做，
def s3 = createS3Client(credentials)
def originalMeta = s3.getObjectMetadata(originalBucketName, key)
s3.copyObject(originalBucketName, key, newBucketName, newKey)
def newMeta = s3.getObjectMetadata(newBucketName, newKey)
// check that md5 matches to confirm this operation was successful
return originalMeta.contentMD5 == newMeta.contentMD5
请注意，这是Groovy的code，但它是非常类似于如何在Java code会的工作。
Note that this is Groovy code, but it is extremely similar to how the Java code would work.
我不喜欢做两个额外的操作，以检查元数据，因此，如果有无论如何要做到这一点更有效地让我知道。
I don't like having to make two additional operations to check the metadata, so if there is anyway to do this more efficiently let me know.
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