O OSS não permite renomear objetos diretamente. Para renomear um objeto no mesmo bucket, use a operação CopyObject para copiar o objeto de origem para um objeto de destino com o novo nome e, em seguida, exclua o objeto de origem.
Observações
O código de exemplo deste tópico usa o endpoint público da região China (Hangzhou) (
cn-hangzhou). Se você acessar o OSS a partir de outros serviços da Alibaba Cloud na mesma região, use o endpoint interno. Para obter mais informações sobre regiões e endpoints do OSS, consulte Regiões e endpoints do OSS.
Código de exemplo
Rename a file using the simple copy (CopyObject) method
O código de exemplo a seguir usa o método CopyObject para renomear um arquivo ao copiá-lo para uma nova chave e excluir o original.
import argparse
import alibabacloud_oss_v2 as oss
# Create a command-line argument parser.
parser = argparse.ArgumentParser(description="copy object sample")
# Add the --region command-line argument, which specifies the region where the bucket is located. This is a required parameter.
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
# Add the --bucket command-line argument, which specifies the name of the destination bucket. This is a required parameter.
parser.add_argument('--bucket', help='The name of the destination bucket.', required=True)
# Add the --endpoint command-line argument, which specifies the endpoint that other services can use to access OSS. This is an optional parameter.
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')
# Add the --key command-line argument, which specifies the name of the destination object. This is a required parameter.
parser.add_argument('--key', help='The name of the destination object.', required=True)
# Add the --source_key command-line argument, which specifies the name of the source object. This is a required parameter.
parser.add_argument('--source_key', help='The name of the source object.', required=True)
# Add the --source_bucket command-line argument, which specifies the name of the source bucket. This is a required parameter.
parser.add_argument('--source_bucket', help='The name of the source bucket.', required=True)
def main():
# Parse the command-line arguments.
args = parser.parse_args()
# Load credentials from environment variables for identity verification.
credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()
# Load the default configurations of the SDK and set the credentials provider.
cfg = oss.config.load_default()
cfg.credentials_provider = credentials_provider
# Set the region in the configuration.
cfg.region = args.region
# If an endpoint is provided, set the endpoint in the configuration.
if args.endpoint is not None:
cfg.endpoint = args.endpoint
# Create an OSS client with the specified configurations.
client = oss.Client(cfg)
# Send a request to copy the object.
result = client.copy_object(oss.CopyObjectRequest(
bucket=args.bucket, # Specify the name of the destination bucket.
key=args.key, # Specify the key of the destination object.
source_key=args.source_key, # Specify the key of the source object.
source_bucket=args.source_bucket, # Specify the name of the source bucket.
))
# Delete the original object.
client.delete_object(oss.DeleteObjectRequest(
bucket=args.source_bucket,
key=args.source_key
))
# Print the result of the copy operation.
print(f'status code: {result.status_code},'
f' request id: {result.request_id},'
f' version id: {result.version_id},'
f' hash crc64: {result.hash_crc64},'
f' source version id: {result.source_version_id},'
f' server side encryption: {result.server_side_encryption},'
f' server side data encryption: {result.server_side_data_encryption},'
f' last modified: {result.last_modified},'
f' etag: {result.etag},'
)
# Call the main function when the script is run directly.
if __name__ == "__main__":
main() # Script entry point. The main function is called when the file is run directly.
Rename a file using the copy manager (Copier)
O código de exemplo a seguir usa o método Copier.Copy do gerenciador de cópia para renomear um arquivo.
import argparse
import alibabacloud_oss_v2 as oss
# Create a command-line argument parser.
parser = argparse.ArgumentParser(description="copier sample")
# Add the --region command-line argument (required), which specifies the region where the bucket is located.
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
# Add the --bucket command-line argument (required), which specifies the name of the destination bucket.
parser.add_argument('--bucket', help='The name of the bucket.', required=True)
# Add the --endpoint command-line argument (optional), which specifies the endpoint to access OSS.
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')
# Add the --key command-line argument (required), which specifies the name of the destination object.
parser.add_argument('--key', help='The name of the object.', required=True)
# Add the --source_key command-line argument (required), which specifies the name of the source object.
parser.add_argument('--source_key', help='The name of the source address for object.', required=True)
# Add the --source_bucket command-line argument (required), which specifies the name of the source bucket.
parser.add_argument('--source_bucket', help='The name of the source address for bucket.', required=True)
def main():
# Parse the command-line arguments.
args = parser.parse_args()
# Load credentials from environment variables.
# Use EnvironmentVariableCredentialsProvider to read the Access Key ID and Access Key Secret from environment variables.
credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()
# Use the default configurations of the SDK.
cfg = oss.config.load_default()
cfg.credentials_provider = credentials_provider # Set the credentials provider.
cfg.region = args.region # Set the region where the bucket is located.
if args.endpoint is not None:
cfg.endpoint = args.endpoint # If an endpoint is provided, set a custom endpoint.
# Create an OSS client instance.
client = oss.Client(cfg)
# Create a Copier instance and copy the object.
copier = client.copier()
# Copy the object.
result = copier.copy(
oss.CopyObjectRequest(
bucket=args.bucket, # The name of the destination bucket.
key=args.key, # The name of the destination object.
source_bucket=args.source_bucket, # The name of the source bucket.
source_key=args.source_key # The name of the source object.
)
)
# Print the copy result.
# Use vars(result) to convert the result object to a dictionary and print it.
print(vars(result))
if __name__ == "__main__":
main()
Referências
Para obter o código de exemplo completo sobre como renomear um arquivo com o método de cópia simples, consulte copy_object.py.
Para obter o código de exemplo completo sobre como renomear um arquivo com o gerenciador de cópia, consulte copier.py.