问题
Is there a way to preserve cookies between invocations of a scrapy crawler? The purpose - the site requires log in, and then maintains the session via cookies. I'd rather reuse the session than re-login every time.
回答1:
Please refer to the docs about cookies.
FAQ entry
CookiesMiddleware
Alternatively you can send Request objects with cookies managed by yourself (you can read cookies from Response objects' head).
About Request and Response objects
来源：https://stackoverflow.com/questions/31648903/scrapy-saving-cookies-between-invocations