NotFoundError：期望来自 Google 存储的状态 [200]。但是在读取文件时得到状态 404

Question

我在谷歌存储中创建了一个存储桶并上传了一个示例文本文件并授予所有者权限。

使用google docs 中的代码，我正在尝试读取上传的文本文件（test.txt）并创建一个示例文本文件。我无法同时执行读取/创建操作。

连接到云存储：

bucket_name = os.environ.get(
        'BUCKET_NAME', 'bucket-name-12345.appspot.com')

错误 - “NotFoundError：期望来自 Google 存储的状态 [200]。但得到状态 404。
路径：'/bucket-name-12345.appspot.com/test'

代码：

def get_cloudstorage(self,site,start_date):
    bucket_name = os.environ.get(
        'BUCKET_NAME', 'bucket-name-12345.appspot.com')
    log.info(" in the cloud storage get method")
    bucket = '/' + bucket_name
    filename = bucket + '/sample'
    filename1 = bucket + '/test.txt'
    self.tmp_filenames_to_clean_up = []
    self.create_file(filename)
    self.read_file(filename1)
    
 # Writing a file to Cloud Storage
def create_file(self, filename):
    """Create a file."""
    # self.response.write('Creating file {}\n'.format(filename))
    # The retry_params specified in the open call will override the default
    # retry params for this particular file handle.
    log.info(" in the cloud storage create_file  method")
    write_retry_params = cloudstorage.RetryParams(backoff_factor=1.1)
    with cloudstorage.open(
        filename, 'w', content_type='text/plain', options={
            'x-goog-meta-foo': 'foo', 'x-goog-meta-bar': 'bar'},
            retry_params=write_retry_params) as cloudstorage_file:
                cloudstorage_file.write('abcde\n')
                cloudstorage_file.write('f'*1024*4 + '\n')
    self.tmp_filenames_to_clean_up.append(filename)
    log.info(" end of the create method ")  
    
def read_file(self, filename):
    with cloudstorage.open(filename) as cloudstorage_file:)
        cloudstorage_file.seek(-1024, os.SEEK_END)
        log.info(cloudstorage_file.read())
    log.info('end of the read_file  ')

Answer 1

试试：

bucket_name = os.environ.get('BUCKET_NAME', 'bucket-name-12345.appspot.com')
filename1 = 'https://storage.googleapis.com/' + bucket_name + '/test.txt'