Python爬虫之爬取并下载哔哩哔哩视频

亲自使用过，太好用了

# 导入requests模块，模拟发送请求import requests# 导入jsonimport json# 导入reimport re# 定义请求头headers = {'Accept': '*/*','Accept-Language': 'en-US,en;q=0.5','User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36'}# 正则表达式，根据条件匹配出值def my_match(text, pattern):match = re.search(pattern, text)print(match.group(1))print()return json.loads(match.group(1))def download_video(old_video_url, video_url, audio_url, video_name):headers.update({"Referer": old_video_url})print("开始下载视频：%s" % video_name)video_content = requests.get(video_url, headers=headers)print('%s视频大小：' % video_name, video_content.headers['content-length'])audio_content = requests.get(audio_url, headers=headers)print('%s音频大小：' % video_name, audio_content.headers['content-length'])# 下载视频开始received_video = 0with open('%s_video.mp4' % video_name, 'ab') as output:while int(video_content.headers['content-length']) > received_video:headers['Range'] = 'bytes=' + str(received_video) + '-'response = requests.get(video_url, headers=headers)output.write(response.content)received_video += len(response.content)# 下载视频结束# 下载音频开始audio_content = requests.get(audio_url, headers=headers)received_audio = 0with open('%s_audio.mp4' % video_name, 'ab') as output:while int(audio_content.headers['content-length']) > received_audio:# 视频分片下载headers['Range'] = 'bytes=' + str(received_audio) + '-'response = requests.get(audio_url, headers=headers)output.write(response.content)received_audio += len(response.content)# 下载音频结束return video_nameif __name__ == '__main__':# 换成你要爬取的视频地址url ='https://www.bilibili.com/video/BV1zK4y1B7Z8/?share_source=copy_web'# 发送请求，拿回数据res = requests.get(url, headers=headers)# 视频详情jsonplayinfo = my_match(res.text, '__playinfo__=(.*?)')# 视频内容jsoninitial_state = my_match(res.text, r'__INITIAL_STATE__=(.*?);\(function\(\)')# 视频分多种格式，直接取分辨率最高的视频 1080pvideo_url = playinfo['data']['dash']['video'][0]['baseUrl']# 取出音频地址audio_url = playinfo['data']['dash']['audio'][0]['baseUrl']video_name = initial_state['videoData']['title']print('视频名字为：video_name')print('视频地址为：', video_url)print('音频地址为：', audio_url)download_video(url, video_url, audio_url, video_name)

它可以爬取并下载视频文件和音频文件！