本文介绍如何通过 TOS Java SDK 查询 Bucket 级 ObjectSet 配置，包括前缀层级、自定义分隔符、默认 ObjectSet 开关、默认 QoS 和默认容量配额。

注意事项

Bucket 未配置 ObjectSet 时，服务端可能返回 NoSuchBucketObjectSetConfiguration。

通过子账号调用时，需要具备当前 Bucket 的 tos:GetBucketObjectSetConfiguration 权限。

代码示例

import com.volcengine.tos.TOSV2;​
import com.volcengine.tos.TOSV2ClientBuilder;​
import com.volcengine.tos.TosClientException;​
import com.volcengine.tos.TosServerException;​
import com.volcengine.tos.model.bucket.GetBucketObjectSetConfigurationInput;​
import com.volcengine.tos.model.bucket.GetBucketObjectSetConfigurationOutput;​
​
public class GetBucketObjectSetConfigurationExample {​
    public static void main(String[] args) {​
        String endpoint = System.getenv("TOS_ENDPOINT");​
        String region = System.getenv("TOS_REGION");​
        String accessKey = System.getenv("TOS_ACCESS_KEY");​
        String secretKey = System.getenv("TOS_SECRET_KEY");​
        String bucket = System.getenv("TOS_BUCKET");​
​
        TOSV2 tos = new TOSV2ClientBuilder().build(region, endpoint, accessKey, secretKey);​
​
        try {​
            GetBucketObjectSetConfigurationInput input = GetBucketObjectSetConfigurationInput.builder()​
                    .bucket(bucket)​
                    .build();​
            GetBucketObjectSetConfigurationOutput output = tos.getBucketObjectSetConfiguration(input);​
            System.out.println("getBucketObjectSetConfiguration succeed");​
            System.out.println("PathLevel: " + output.getPathLevel());​
            System.out.println("CustomDelimiter: " + output.getCustomDelimiter());​
            System.out.println("EnableDefaultObjectSet: " + output.getEnableDefaultObjectSet());​
            System.out.println("StorageQuota: " + output.getStorageQuota());​
            System.out.println("RequestID: " + output.getRequestInfo().getRequestId());​
        } catch (TosClientException e) {​
            System.out.println("getBucketObjectSetConfiguration failed");​
            System.out.println("Message: " + e.getMessage());​
            if (e.getCause() != null) {​
                e.getCause().printStackTrace();​
            }​
        } catch (TosServerException e) {​
            System.out.println("getBucketObjectSetConfiguration failed");​
            System.out.println("StatusCode: " + e.getStatusCode());​
            System.out.println("Code: " + e.getCode());​
            System.out.println("Message: " + e.getMessage());​
            System.out.println("RequestID: " + e.getRequestID());​
        } catch (Throwable t) {​
            System.out.println("getBucketObjectSetConfiguration failed");​
            System.out.println("unexpected exception, message: " + t.getMessage());​
        }​
    }​
}​

对象存储