Deleting Objects

Deleting a Single Object

You can call ObsClient.deleteObject to delete a single object. Sample code is as follows:

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// Create an instance of ObsClient.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);
obsClient.deleteObject("bucketname", "objectname");

Deleting Objects in a Batch

You can call ObsClient.deleteObjects to delete objects in a batch.

A maximum of 1000 objects can be deleted each time. Two response modes are supported: verbose (detailed) and quiet (brief).

• In verbose mode (default mode), the returned response includes the deletion result of each requested object.
• In quiet mode, the returned response includes only results of objects failed to be deleted.

Sample code:

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
ObsClient obsClient = new ObsClient(ak, sk, endPoint);

ListVersionsRequest request = new ListVersionsRequest("bucketname");
// Delete 100 objects at a time.
request.setMaxKeys(100);
ListVersionsResult result;
do {  
       result = obsClient.listVersions(request);
       
       DeleteObjectsRequest deleteRequest = new DeleteObjectsRequest("bucketname");
       
       for(VersionOrDeleteMarker v  : result.getVersions()) {
              deleteRequest.addKeyAndVersion(v.getKey(), v.getVersionId());
       }
       
       DeleteObjectsResult deleteResult = obsClient.deleteObjects(deleteRequest);
       // Obtain the successfully deleted objects.
       Log.i("DeletesObjects",deleteResult.getDeletedObjectResults());
       // Obtain the list of objects failed to be deleted.
       Log.i("DeletesObjects", deleteResult.getErrorResults());
       
       request.setKeyMarker(deleteResult.getNextKeyMarker());
       request.setVersionIdMarker(deleteResult.getNextVersionIdMarker());
}while(result.isTruncated());