ceph官網中使用java訪問rgw s3的程式碼已經不能使用了，

http://docs.ceph.com/docs/kraken/radosgw/s3/java/

折騰了好長時間，在同事的幫助下終於實現了使用java呼叫rgw s3介面，程式碼如下：

    public static void main(String[] args) {
        String accessKey = "your accessKey";
        String secretKey = "your secretKey";

        AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);

        AmazonS3 amazonS3 = AmazonS3ClientBuilder.standard()
                .withCredentials(new AWSStaticCredentialsProvider(credentials))
                .withEndpointConfiguration(
                        new AwsClientBuilder.EndpointConfiguration(
                                "your ceph rgw site，like： http://10.0.0.12:8080",
                                ""))
                .build();
        List<Bucket> listBuckets = amazonS3.listBuckets();
        for (Bucket bucket : listBuckets) {
            System.out.println(bucket.getName());
        }

    }

使用過程中需要引入很多包，如有需要可以聯絡本人。