listNextBatchOfObjects（）请求对象

Question

在现有清单上执行listNextBatchOfObjects时，AWS s3客户端是否发出请求？例如：

   while (listing.isTruncated()) {
        listing = amazonS3Client.listNextBatchOfObjects(listing);
        final int paginatedObjectCount = listing.getObjectSummaries().size();
        objectCount += paginatedObjectCount;
    }

在这种情况下，amazonS3Client.listNextBatchOfObjects（listing）行会向S3请求吗？如果是这样，是否有办法从该请求中获取响应？

Answer 1

我想我明白了。您可以手动构造响应，以便上面的代码变为：

        ListNextBatchOfObjectsRequest nextBatchOfObjectsRequest = new ListNextBatchOfObjectsRequest(listing);
        listing = amazonS3Client.listNextBatchOfObjects(nextBatchOfObjectsRequest);
        S3ResponseMetadata s3ResponseMetadata = amazonS3Client.getCachedResponseMetadata(nextBatchOfObjectsRequest);
        final int paginatedObjectCount = listing.getObjectSummaries().size();
        objectCount += paginatedObjectCount;