如何设置或在Django得到一个cookie的值

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) 

它提出了这个异常：

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

我能做些什么？

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，然后从视图中返回它。

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. 

要获取的cookie：

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