Python 自动爬取B站视频

发布时间:2019-04-29 22:29:29编辑:auto阅读(1703)

    文件名自定义(文件格式为.py),脚本内容:

    #!/usr/bin/env python
    #-*-coding:utf-8-*-
    import requests
    import random
    import time
    
    
    def get_json(url):
        headers = {
            'User-Agent': 
            'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36'
        }
    
        params = {
            'page_size': 10,
            'next_offset': str(num),
            'tag': '今日热门',
            'platform': 'pc'
        }
        try:
            html = requests.get(url,params=params,headers=headers)
            return html.json()
            
        except BaseException:
            print('request error')
            pass
            
    def download(url,path):
        start = time.time() # 开始时间
        size = 0
        headers = {
            'User-Agent': 
            'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36'
        }
        
        response = requests.get(url,headers=headers,stream=True) # stream属性必须带上
        chunk_size = 1024 # 每次下载的数据大小
        content_size = int(response.headers['content-length']) # 总大小
        if response.status_code == 200:
            print('[文件大小]:%0.2f MB' %(content_size / chunk_size / 1024)) # 换算单位
            with open(path,'wb') as file:
                for data in response.iter_content(chunk_size=chunk_size):
                    file.write(data)
                    size += len(data) # 已下载的文件大小
    
    
    
    if __name__ == '__main__':
        for i in range(10):
            url = 'http://api.vc.bilibili.com/board/v1/ranking/top?'
            num = i*10 + 1
            html = get_json(url)
            infos = html['data']['items']
            for info in infos:
                title = info['item']['description'] # 小视频的标题
                video_url = info['item']['video_playurl'] # 小视频的下载链接
                print(title)
    
    
                # 为了防止有些视频没有提供下载链接的情况
                try:
                    download(video_url,path='videos/%s.mp4' %title)
                    print('成功下载一个!')
                except BaseException:
                    print('凉凉,下载失败')
                    pass
            time.sleep(int(format(random.randint(2,8)))) # 设置随机等待时间

    爬取效果如下:

    爬取的文件:

    生成一个windows平台可执行exe程序
    工具安装:pip install PyInstaller
    生成exe程序:
    pyinstaller -i test.ico -F Grasp.py

    打包过程:

    打包好的文件:

    参数含义:

    程序:

    百度云下载链接

    链接:百度云
    提取码:hqhr

    脚本内容收集自互联网,不保证生成的程序时效

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