使用Python，S3 Key LastModified以两种不同的方式返回

pip install boto3

import boto3

# 创建S3客户端
s3_client = boto3.client('s3')

# 指定Bucket名称和对象Key
bucket_name = 'your_bucket_name'
object_key = 'your_object_key'

# 获取对象的元数据
response = s3_client.head_object(Bucket=bucket_name, Key=object_key)

# 获取Key和LastModified属性
object_key = response['Metadata']['x-amz-meta-key']
last_modified = response['LastModified']

print("Key: ", object_key)
print("Last Modified: ", last_modified)

import requests

# 指定Bucket名称和对象Key
bucket_name = 'your_bucket_name'
object_key = 'your_object_key'

# 构建请求URL
url = f'https://{bucket_name}.s3.amazonaws.com/{object_key}'

# 发送HEAD请求获取对象的元数据
response = requests.head(url)

# 获取Key和LastModified属性
object_key = response.headers['x-amz-meta-key']
last_modified = response.headers['Last-Modified']

print("Key: ", object_key)
print("Last Modified: ", last_modified)