59 lines
2.3 KiB
Python
59 lines
2.3 KiB
Python
from minio import Minio
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from minio.error import S3Error
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import mimetypes
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import os
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def download_file_from_minio(endpoint, access_key, secret_key, bucket_name, object_name):
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try:
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# 初始化 MinIO 客户端
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minio_client = Minio(
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endpoint=endpoint,
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access_key=access_key,
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secret_key=secret_key,
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secure=False # 如果 MinIO 没有使用 HTTPS，设置为 False
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)
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# 检查存储桶是否存在
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if not minio_client.bucket_exists(bucket_name):
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print(f"Bucket '{bucket_name}' does not exist.")
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return
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# 获取对象元数据
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stat = minio_client.stat_object(bucket_name, object_name)
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content_type = stat.content_type # 获取 Content-Type
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print(f"Object '{object_name}' Content-Type: {content_type}")
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# 根据 Content-Type 确定文件后缀
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guessed_extension = mimetypes.guess_extension(content_type)
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if guessed_extension is None:
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guessed_extension = "" # 无法推断时默认不加后缀
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print(f"Guessed file extension: {guessed_extension}")
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# 提取文件名并设置保存路径
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file_name = os.path.basename(object_name) # 提取路径中的文件名
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if "." not in file_name: # 如果文件名中没有后缀，添加推断的后缀
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file_name += guessed_extension
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local_file_path = f"./{file_name}" # 设置保存路径
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print(f"File will be saved as: {local_file_path}")
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# 下载文件
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print(f"Downloading '{object_name}' from bucket '{bucket_name}' to '{local_file_path}'...")
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minio_client.fget_object(bucket_name, object_name, local_file_path)
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print(f"File '{object_name}' downloaded successfully to '{local_file_path}'.")
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except S3Error as e:
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print(f"Error occurred: {e}")
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except Exception as e:
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print(f"Unexpected error: {e}")
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# 示例配置
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endpoint = "192.168.1.28:9500" # MinIO 服务器地址
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access_key = "UIiBRvUixj3GkJwvItmy" # MinIO Access Key
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secret_key = "wgIPqYxaNlDhUds0d3n5v57Yvzg3u9iUXplO7Kdm" # MinIO Secret Key
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bucket_name = "test-bucket" # 存储桶名称
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object_name = "test/uploadedFiles/20241223/175_big.png" # 不带后缀的文件名
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# 测试下载文件
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download_file_from_minio(endpoint, access_key, secret_key, bucket_name, object_name)
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