如何在 django 中设置或获取 cookie 值

Question

这是我的代码：

from django.shortcuts import render_to_response, get_object_or_404
from django.template import RequestContext
from django import http
from django.http import HttpResponse 

def main(request, template_name='index.html'):
    HttpResponse.set_cookie('logged_in_status', 'zjm1126')
    context ={
              'a':a,
              'cookie':HttpResponse.get_cookie('logged_in_status'),
    }

    return render_to_response(template_name, context)
    #return http.HttpResponsePermanentRedirect(template_name)

它引发了这个异常：

unbound method set_cookie() must be called with HttpResponse instance as first argument (got str instance instead)

我能做什么？

Answer 1

你不能只是开始调用 HttpResponse 类的方法，你必须实例化它，例如response = HttpResponse("Hello World")，调用cookie方法，然后从你的视图中返回。

response = render_to_response(template_name, context)

response.set_cookie('logged_in_status', 'never_use_this_ever') 
return response
# remember my other answer: 
# it's a terrrible idea to set logged in status on a cookie.

获取 cookie：

request.COOKIES.get('logged_in_status') 
# remember, this is a terrible idea.