判断是否登录的装饰器

#装饰器
def deco(func):
    def status(request, *args, **kwargs):
        if request.session.has_key('islogin'):
            print('已经登录')
            return func(request, *args, **kwargs)
        else:
            print('没有登录')
            return redirect('/test/login')
    return status


#登录显示页面

def login(request):
    if request.COOKIES.get('username') and request.COOKIES.get('password'):
        user = request.COOKIES['username']
        pwd = request.COOKIES['password']
        return render(request, 'login.html', {'user': user,
                                          'pwd': pwd})
    return render(request, 'login.html')


#登录校验
def login_check(request):
    if request.method == 'POST':
        username = request.POST.get('username')
        password = request.POST.get('password')
        remember = request.POST.get('remember')
        if models.UserInfo.objects.filter(username=username, password=password):
            response = JsonResponse({'res': 1})
            request.session['islogin'] = True    #设置登录状态然后利用装饰器判断是否登录
            if remember == 'on':
                response.set_cookie('username', username, max_age=1111)
                response.set_cookie('password', password, max_age=1111)
            return response
        else:
            return JsonResponse({'res': 0})