Python3，通过单击按钮从url下载文件

Question

我需要从这样的链接下载文件 https://freemidi.org/getter-13560

但我不能使用 urllib.request 或 requests 库，因为它下载的是 html，而不是 midi。有什么解决办法吗？这里还有按钮本身的链接 link

Answer 1

通过添加适当的 header 和使用 session ，我们可以使用请求模块下载和保存文件。

import requests

headers = {
            "Host": "freemidi.org",
            "Connection": "keep-alive",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",
            "Accept-Encoding": "gzip, deflate, br",
            "Accept-Language": "en-US,en;q=0.9",
           }

session = requests.Session()

#the website sets the cookies first
req1 = session.get("https://freemidi.org/getter-13560", headers = headers)

#Request again to download
req2 = session.get("https://freemidi.org/getter-13560", headers = headers)
print(len(req2.text))     # This is the size of the mdi file

with open("testFile.mid", "wb") as saveMidi:
    saveMidi.write(req2.content)