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python爬虫案例——知乎数据采集

腾讯数据架构师 2020-11-13 07:21:16
Python 爬虫 采集 数据 案例

全栈工程师开发手册 （作者：栾鹏）
python教程全解

首先你需要了解python数据挖掘库urllib、urllib2、cookie的知识。参考http://blog.csdn.net/luanpeng825485697/article/details/78383884

cookie模拟登陆

知乎需要设置cookie模拟登陆状态，需要设置http头，满足知乎服务器的检测。

知乎地址https://www.zhihu.com

在没有登陆时访问这个网址，只能出现登陆界面
这里写图片描述

如果登陆以后，在访问这个网址，就会出现文章列表。

这里写图片描述

这是因为访问此地址，知乎服务器会查询请求cookie，如果请求cookie没有用户信息，就证明没有登陆，就会返回登陆界面，如果有cookie信息就会返回文章列表界面，同时包含用户的其他信息

版权声明
本文为[腾讯数据架构师]所创，转载请带上原文链接，感谢
https://luanpeng.blog.csdn.net/article/details/78476065
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