42 lines
1.8 KiB
Python
42 lines
1.8 KiB
Python
import requests
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import mimetypes
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import os
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def download_file(url, local_filename):
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try:
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with requests.get(url, stream=True) as response:
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response.raise_for_status() # 确保请求成功，否则抛出异常
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# 获取文件类型并设置适当的文件扩展名
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content_type = response.headers.get('Content-Type')
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extension = mimetypes.guess_extension(content_type, strict=False)
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if not extension:
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# 如果无法猜测扩展名，默认使用 .bin
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extension = '.bin'
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full_filename = local_filename + extension # 追加扩展名
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with open(full_filename, 'wb') as file:
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for chunk in response.iter_content(chunk_size=8192):
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file.write(chunk)
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print(f"File downloaded successfully and saved as {full_filename}")
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return full_filename # 返回文件的完整路径
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except requests.HTTPError as e:
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print(f"HTTP Error: {e}")
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return None
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except requests.RequestException as e:
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print(f"Error downloading the file: {e}")
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return None
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except Exception as e:
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print(f"An error occurred: {e}")
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return None
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if __name__ == '__main__':
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# 测试下载的URL
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test_url = "https://bid-assistance.oss-cn-wuhan-lr.aliyuncs.com/tender/28f7c0af7c7041bbbdf88ce6848e8a38.pdf?Expires=1722165340&OSSAccessKeyId=TMP.3KfNYFQchGtZWbjd2M1jR6y7PPqYTq1QLZ4pzbfEwkz3LwGLepVvr9371bndcRoMhHFhohaUJxrhiL63jKoAZk6VWQfwh4&Signature=RmktXAOwEbP1BBrkSfARfHtuXh8%3D"
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# 基本的本地文件名，不包括扩展名
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local_file_name = 'C:\\Users\\zhangsan\\Desktop\\temp\\downloaded_file'
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file_path = download_file(test_url, local_file_name)
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if file_path:
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print(f"Downloaded file path: {file_path}")
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