Java 使用“创建桶时获取异常”；us-isob-east-1“；具有aws sdk v4签名的区域

我正在从事一个java项目，在该项目中，我使用AWS-SDK v4进行AWS操作，如创建一个bucket、删除一个bucket等

代码块：

创建具有“us-isob-east-1”区域的客户

创建bucket的代码：

S3Waiter s3Waiter = s3Client.waiter();
                CreateBucketRequest bucketRequest = CreateBucketRequest.builder()
                        .bucket(bucketName)
                        .build();
    
                CreateBucketResponse few = s3Client.createBucket(bucketRequest);
                HeadBucketRequest bucketRequestWait = HeadBucketRequest.builder()
                        .bucket(bucketName)
                        .build();
                return bucketRequestWait.bucket();
            } catch (S3Exception e) {
                throw e;
            }

因此，当我执行create bucket的代码时，我得到以下异常：

（software.amazon.awssdk.core.exception.SdkClientException）software.amazon.awssdk.core.exception.SdkClientException:尝试与服务交互时收到未知的HostException。请参阅无法解析的确切端点的原因。如果在以前工作的端点上发生这种情况，则可能存在网络连接问题，或者DNS缓存可能会将端点存储太长时间

如何解决此错误

S3Waiter s3Waiter = s3Client.waiter();
                CreateBucketRequest bucketRequest = CreateBucketRequest.builder()
                        .bucket(bucketName)
                        .build();
    
                CreateBucketResponse few = s3Client.createBucket(bucketRequest);
                HeadBucketRequest bucketRequestWait = HeadBucketRequest.builder()
                        .bucket(bucketName)
                        .build();
                return bucketRequestWait.bucket();
            } catch (S3Exception e) {
                throw e;
            }