怎么实时爬取网页数据 - V2EX
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t1thshy
V2EX    问与答

怎么实时爬取网页数据

  •   
  •   t1thshy 2020-05-07 19:29:35 +08:00 via iPhone 1611 次点击
    这是一个创建于 2008 天前的主题，其中信息可能已经有所发展或是发生改变。
    怎么实时爬取一个网页的数据呢
  • 实时
  • 网页
  • 数据
  • 爬
    5 条回复    2020-05-07 19:59:56 +08:00
    kaifang
        1
    kaifang  
       2020-05-07 19:31:50 +08:00
    定时爬虫
    leejaen
        2
    leejaen  
       2020-05-07 19:54:26 +08:00 via iPhone
    rss+iffft
    t1thshy
        3
    t1thshy  
    OP
       2020-05-07 19:57:16 +08:00 via iPhone
    @leejaen 网站没有 rss 咋办
    kaiki
        4
    kaiki  
       2020-05-07 19:58:50 +08:00
    网页肯定不会主动通知你更新了啊，你只能自己周期的访问，自己来判断更新，更新了哪些，去爬哪些
    mumbler
        5
    mumbler  
       2020-05-07 19:59:56 +08:00 via Android
    linux 下用 crontab，win 下用计划任务
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