FBV和CBV装饰器

FBV装饰器：

def cook(request):

    err_msg=""
    if request.method == "GET":
        return render(request,'cookie.html')

    if request.method == "POST":

        username = request.POST.get('username')
        p = request.POST.get('password')

        dic = user_info.get(username)
        print(dic)

        if not dic:
            err_msg="用户不存在"
            return render(request,'cookie.html',{'err_msg':err_msg})

        if dic['pwd'] == int(p):

            res = redirect('/xiaoqing/cookie1')
            # res.set_cookie('username_cookie',username)   #设置cookie   关闭浏览器失效
            # res.set_cookie('username_cookie',username,max_age=10)   设置cookie失效时间 10秒过期
            import datetime
            current_date=datetime.datetime.utcnow()
            change_date=current_date+datetime.timedelta(seconds=5)
            res.set_cookie('username_cookie',username,expires=change_date)   #到哪个时间失效

            # res.set_signed_cookie('username_cookie',username,salt='sdasdas')

            return res
        else:
            return render(request,'cookie.html')

cook函数set cookie

def auth(func):  #装饰器 cookie认证

    def inner(request,*args,**kwargs):
        v = request.COOKIES.get('username_cookie')
        print(v)
        if not v:
            return redirect('/xiaoqing/cookie')

        return func(request,*args,**kwargs)

    return inner

@auth
def cook1(request):
    #获取当前已经登录的用户

    v=request.COOKIES.get('username_cookie')   #获取cookie
    # 或者 v=request.COOKIES['username_cookie']  #获取cookie

    # v=request.get_signed_cookie('username_cookie',salt='sdasdas')   #获取加密cookie

    return render(request,'cookie1.html',{'current_user':v,})

CBV装饰器

def auth(func): #装饰器

    def inner(request,*args,**kwargs):
        v = request.COOKIES.get('username_cookie')
        print(v)
        if not v:
            return redirect('/xiaoqing/cookie')

        return func(request,*args,**kwargs)

    return inner

from django import views

from django.utils.decorators import method_decorator  #导入方法

@method_decorator(auth,name='dispatch')  #类中全部方法做认证
class Order(views.View):

    # @method_decorator(auth)  #单独方法做认证
    def get(self,request):
        v=request.COOKIES.get('username_cookie')

        return render(request,'cookie1.html',{'current_user':v,})

    def post(self,request):
        pass