flask文件下载

一、定义

1. flask 文件下载
2. python 接收tar 文件

二、实现

1. flask 文件下载

   from flask import Flask, send_file, request
   import os
   from gevent.pywsgi import WSGIServer
   import logging

   logging.basicConfig(level=logging.INFO, format="%(asctime)s %(filename)s [line:%(lineno)d] %(levelname)s %(message)s")
   app = Flask(name)

   @app.route('/download', methods=["GET"])
   def download_tar():
   # 设置tar文件的路径
   tar_file_path = request.args.get("filename")
   tar_file_path = os.path.join("/home/jiayafei_linux/downloads_files", tar_file_path)
   logging.info(str(tar_file_path))
   # 检查文件是否存在
   if not os.path.isfile(tar_file_path):
   return "File not found", 404
   # 设置文件名，这将作为下载时的默认文件名
   filename = os.path.basename(tar_file_path)
   logging.info(str(filename))
   # 使用send_file发送文件
   return send_file(tar_file_path, as_attachment=True, download_name=filename)

   if name == 'main':
   print("start")
   http_server = WSGIServer(('0.0.0.0', int(8010)), app)
   http_server.serve_forever()

2. python 接收tar 文件

   #接收tar 文件，并保存到本地 baike_10000k_0.tar
   def download_file_with_progress(self, url, save_path):
   response = requests.get(url, stream=True)
   total_size_in_bytes = int(response.headers.get('content-length', 0))
   block_size = 1024 # 1 Kibibyte
   progress_bar = tqdm(total=total_size_in_bytes, unit='iB', unit_scale=True)

        with open(save_path, 'wb') as file:
            for data in response.iter_content(block_size):
                progress_bar.update(len(data))
                file.write(data)
        progress_bar.close()