【Python】利用requests库下载B站视频（半成品）

介绍

写这篇博客的时候，导师突然发消息，导致现在没太大心情解释具体步骤了，先放这里，回头再更…

脚本如下

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
'''
Author: Guo Yingwei
Date: 2021-02-09 17:51:46
E-mail: [email protected]
Description:  Download bilibili video
LastEditors: gyw
LastEditTime: 2021-02-25 19:08:37
'''

import re
import requests
import json



headers = {
    'referer' : 'https://www.bilibili.com',
    'user-agent' : 'Mozilla/5.0 (Windows. NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36'
}


def get_page(url):
    try:
        s = requests.Session().get(url, headers = headers)
        s.raise_for_status()
        s.encoding = s.apparent_encoding
        return s
    except:
        return('解析网页失败，请检查！')

    
def parse_page(data):
    json_str = re.findall('<script>window.__playinfo__=(.*?)</script>', data, re.S)[0]
    json_data = json.loads(json_str)
    down_list = []
    title = re.findall('name="title" content="(.*?)">', data, re.S)[0]
    audio_url = json_data['data']['dash']['audio'][0]['backup_url'][-1]
    video_url = json_data['data']['dash']['video'][0]['backup_url'][-1]
    down_list.append(audio_url)
    down_list.append(video_url)
    down_list.append(title)
    return down_list

def write_res(filename, data):
    with open(r'D:\\test\\' + filename, 'wb') as f:
        f.write(data)

def video_audio_merge(video_name):
    pass #

def main(bv):
    
    url = f'http://www.bilibili.com/video/{bv}'
    html_data = get_page(url).text
    hfile = open('hhh.html', 'w', encoding='utf-8')
    hfile.write(html_data)
    down_url_list = parse_page(html_data)
    
    # sava audio
    audio_url = down_url_list[0]
    title = down_url_list[-1].replace(' ', '').replace('_哔哩哔哩 (゜-゜)つロ 干杯~-bilibili', '')
    audio_content = get_page(url=audio_url).content
    print('saving audio...')
    write_res(filename=title + '.mp3',data = audio_content)

    #save video
    video_url = down_url_list[1]
    title = down_url_list[-1].replace(' ', '').replace('_哔哩哔哩 (゜-゜)つロ 干杯~-bilibili', '')
    video_content = get_page(url=video_url).content
    print('saving video...')
    write_res(filename=title + '.mp4',data = video_content)
    video_audio_merge(video_name=title)

if __name__ == '__main__':
    main('BV1VJ411v7Ss')