本文介绍如何通过 TOS Java SDK 查询指定 ObjectSet 的实际存储用量与对象数，并按存储类型维度返回统计值。

注意事项

ObjectSet 必须存在。

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

用量统计可能存在服务端统计延迟，请以服务端返回结果为准。

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.GetObjectSetStorageInput;​
import com.volcengine.tos.model.bucket.GetObjectSetStorageOutput;​
import com.volcengine.tos.model.bucket.ObjectSetStorageStat;​
​
public class GetObjectSetStorageExample {​
    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");​
        String objectSetName = System.getenv("TOS_OBJECT_SET_NAME");​
​
        TOSV2 tos = new TOSV2ClientBuilder().build(region, endpoint, accessKey, secretKey);​
​
        try {​
            GetObjectSetStorageInput input = GetObjectSetStorageInput.builder()​
                    .bucket(bucket)​
                    .objectSetName(objectSetName)​
                    .build();​
            GetObjectSetStorageOutput output = tos.getObjectSetStorage(input);​
            System.out.println("getObjectSetStorage succeed");​
            ObjectSetStorageStat total = output.getTotalStorageStat();​
            if (total != null) {​
                System.out.println("TotalStorage: " + total.getStorage());​
                System.out.println("TotalObjectCount: " + total.getObjectCount());​
            }​
            System.out.println("RequestID: " + output.getRequestInfo().getRequestId());​
        } catch (TosClientException e) {​
            System.out.println("getObjectSetStorage failed");​
            System.out.println("Message: " + e.getMessage());​
            if (e.getCause() != null) {​
                e.getCause().printStackTrace();​
            }​
        } catch (TosServerException e) {​
            System.out.println("getObjectSetStorage 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("getObjectSetStorage failed");​
            System.out.println("unexpected exception, message: " + t.getMessage());​
        }​
    }​
}​

对象存储