django 使用装饰器验证用户登陆

使用装饰器验证用户登陆,需要使用@method_decorator

首先需引用,method_decorator,并定义一个闭包

from django.utils.decorators import method_decorator
def checkLogin(func):
    def wrapper(request,*args,**kwargs):
        is_login=request.session.get('IS_LOGIN',False)
        if is_login:
            return func(request,*args,**kwargs)
        else:
            return  redirect('/Index/')
    return  wrapper

登陆页面的定义如下例子:

class Login(View):    
    def get(self,request):
        return render(request,'index.html')
    def post(self,request):
        username=request.POST.get('username')
        user_list=Hbuser.objects.filter(username=username).first()
        if user_list:
            request.session['IS_LOGIN']=True
            request.session['uname']=user_list.username
        else:
            request.session.flush()
            return redirect('/Index/')
        return  redirect('/Home/')

装饰器的使用方法如下,下面是对整个类实用装饰器

@method_decorator(checkLogin,name='dispatch')
class Home(View):
    def get(self,request):
        return HttpResponse('OK')

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转载自www.cnblogs.com/weilaibuxiangshuo/p/10412124.html