//百度智能云主用户AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建子用户进行API访问或日常运维
    String ACCESS_KEY_ID="<yourAccessKeyId>"; 
    String SECRET_ACCESS_KEY= "<yourAccessKeySecret>";
    String ENDPOINT="bj.bcebos.com"; 

   //创建BOS实例
    BosClientConfiguration config=new BosClientConfiguration();
    config.setCredentials(new DefaultBceCredentials(ACCESS_KEY_ID,SECRET_ACCESS_KEY));
    config.setEndpoint(ENDPOINT);
    BosClient bosClient=new BosClient(config);

    // 获取用户的Bucket列表
    ListBucketsResponse listing = bosClient.listBuckets();

    // 遍历所有Bucekt
    for (BucketSummary bucketSummary : listing.getBuckets()) {
        System.out.println("Bucket: " + bucketSummary.getName());
    }

  // 获取用户指定Bucket的Object列表
    ListObjectsResponse listing = bosClient.listObjects(BUCKET_NAME);
    // 遍历所有Object
    for (BosObjectSummary objectSummary : listing.getContents()) {
        System.out.println("ObjectKey: " + objectSummary.getKey());
    }