我想复制folder2内容而不是bucketName的全部内容。我使用以下代码但没有成功。我实际上看不到输出。如果我只是复制存储桶的内容而不是子文件夹,我会在目标存储桶中看到整个内容。如何在存储桶下复制子文件夹2的内容。
System.out.println("Listing objects and copying objects");
if (!prefix.endsWith(delimiter)) {
prefix += delimiter;
}
ListObjectsRequest listObjectsRequest = new ListObjectsRequest()
.withBucketName(bucketName)
.withPrefix(prefix)
.withDelimiter(delimiter);
ObjectListing objectListing;
objectListing = s3Client.listObjects(listObjectsRequest);
for (S3ObjectSummary objectSummary :
objectListing.getObjectSummaries()) { s3Client.copyObject(bucketName, objectSummary.getKey(), bucketName2, "output/" + objectSummary.getKey());
System.out.println(" - " + objectSummary.getKey() + " " +
"(size = " + objectSummary.getSize() +
")");
listObjectsRequest.setMarker(objectListing.getNextMarker());
答案 0 :(得分:0)
我设置了一些东西来和你一起试试。我创建了两个桶,一个叫mytestbucket20141006,它作为源,另一个叫mytestbucket20141006b,作为目的地。在源存储桶中,我有一个名为afolder的文件夹,其中包含几个文件。
以下代码已成功将对象复制到目标:
ListObjectsRequest listObjectsRequest = new ListObjectsRequest()
.withBucketName("mytestbucket20141006")
.withPrefix("afolder/afolder2/afolder3");
//.withDelimiter("/");
ObjectListing objectListing = s3.listObjects(listObjectsRequest);
for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) {
String key = objectSummary.getKey();
String newKey = key.replace("afolder/afolder2/afolder3/", "afolder3/");
s3.copyObject("mytestbucket20141006", key, "mytestbucket20141006b", newKey);
System.out.println(key);
}