Check if bucket exists

Updated at：2025-11-03

Basic workflow

Instantiate the BOSClient class.
Call the BOSClient.doesBucketExist() method.
The doesBucketExist() method returns a boolean value to indicate whether the bucket exists.

Example code

                Java
                
            

                // Retrieve bucket existence information
 boolean exists = client.doesBucketExist(<BucketName>); //Specify the bucket name
 // Output result
if (exists) {
    System.out.println("Bucket exists");
} else {
    System.out.println("Bucket not exists");
}
            

Complete example

                Java
                
            

                import android.app.Activity;
import android.os.Bundle;
import com.baidubce.BceClientException;
import com.baidubce.BceServiceException;
import com.baidubce.auth.DefaultBceCredentials;
import com.baidubce.development.R;
import com.baidubce.services.bos.BosClient;
import com.baidubce.services.bos.BosClientConfiguration;
​    
public class ExampleActivity extends Activity {
 private String bucketName = <BucketName>;  //Your bucket name
​    
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                BosClientConfiguration config = new BosClientConfiguration();
                config.setCredentials(new DefaultBceCredentials(<AccessKeyID>, <SecretAccessKey>));
                config.setEndpoint(<EndPoint>);
                BosClient client = new BosClient(config);
 // Retrieve bucket existence information
 boolean exists = client.doesBucketExist(<BucketName>); //Specify the bucket name
 // Output result
                if (exists) {
                    System.out.println("Bucket exists");
                } else {
                    System.out.println("Bucket not exists");
                }
            } catch (BceServiceException e) {
                System.out.println("Error ErrorCode: " + e.getErrorCode());
                System.out.println("Error RequestId: " + e.getRequestId());
                System.out.println("Error StatusCode: " + e.getStatusCode());
                System.out.println("Error Message: " + e.getMessage());
                System.out.println("Error ErrorType: " + e.getErrorType());
            } catch (BceClientException e) {
                System.out.println("Error Message: " + e.getMessage());
            }
        }
    }).start();
}
}
            

View bucket list

Delete bucket

BOS

BOS

Check if bucket exists

Basic workflow

Example code

Complete example