String ACCESS_KEY_ID = "";                   // 用户的Access Key ID
        String SECRET_ACCESS_KEY = "";           // 用户的Secret Access Key
        // 初始化一个BccClient
        BccClientConfiguration config = new BccClientConfiguration();
        config.setCredentials(new DefaultBceCredentials(ACCESS_KEY_ID, SECRET_ACCESS_KEY));
        BccClient client = new BccClient(config);
        ListImagesResponse listInstancesResponse = client.listImages();
        System.out.println(listInstancesResponse.getImages());