Question

我在Google存储桶上下载文件时遇到问题我遵循了这个Google tutorial（使用客户库和服务帐户）

这是我使用的python代码（来自google示例）：导入json 从httplib2导入Http 从oauth2client.client导入SignedJwtAssertionCredentials 从apiclient.discovery导入构建中

client_email = 'myclientname@myproject.iam.gserviceaccount.com'

json_file = 'resources/Google/myproject-anumber.json' ## <---- JSON provided when i created the service account

cloud_storage_bucket = 'mybucketname'

report_to_download = 'path/to/my/file.zip'


private_key = json.loads(open(json_file).read())['private_key']

credentials = SignedJwtAssertionCredentials(client_email, private_key, 
              'https://www.googleapis.com/auth/devstorage.read_only')

storage = build('storage', 'v1', http=credentials.authorize(Http()))
report = storage.objects().get(bucket = cloud_storage_bucket, object = 
report_to_download).execute()

我以为我必须将'report'输出到文件中，但是没有，如此处所述，report只是一个dict对象：

https://google-api-client-libraries.appspot.com/documentation/storage/v1beta2/python/latest/storage_v1beta2.objectAccessControls.html#get

然后我尝试使用selfLink属性或mediaLink，但没有成功。与“ https://cloud.google.com/storage/docs/json_api/v1/objects/get”相同也会返回ACL

先谢谢您

Answer 1

您可以使用code shown here下载对象。我建议遵循this document安装Cloud Storage客户端库并设置身份验证。

下面是一个基于上述信息的Python代码示例，用于下载对象。

from google.cloud import storage
if __name__ == '__main__':
    bucket_name = 'your_bucket'
    source_blob_name = 'your_object'
    destination_file_name = 'local_file'
    #DOWNLOAD
    storage_client = storage.Client()
    bucket = storage_client.get_bucket(bucket_name)
    blob = bucket.blob(source_blob_name)
    blob.download_to_filename(destination_file_name)
    print('Blob {} downloaded to {}.'.format(source_blob_name, destination_file_name))

从Google Bucket下载文件

1 个答案: