models.py
1from django.db import models 2 3 4# Create your models here. 5class User(models.Model): 6 name = models.CharField(max_length=32) 7 pwd = models.CharField(max_length=32)
urls
1urlpatterns = [ 2 url(r'^admin/', admin.site.urls), 3 url(r'^login/', views.Login.as_view()), 4 url(r'^order/', views.Order.as_view()), 5]
login.html
1<form action="" method="post"> 2 <p>用户名：<input type="text" name="name"></p> 3 <p>密码：<input type="text" name="pwd"></p> 4 <input type="submit" value="登录"> 5</form>
views
1from django.shortcuts import render, HttpResponse, redirect 2 3# Create your views here. 4from django.views import View 5from app01 import models 6 7 8def login_auth(func): 9 def inner(request, *args, **kwargs): 10 url = request.get_full_path() 11 session_name = request.session.get('name') 12 print(session_name) 13 if request.session.get('name'): 14 res = func(request, *args, **kwargs) 15 return res 16 else: 17 return redirect('/login/?next=%s' % url) 18 19 return inner 20 21 22class Login(View): 23 def get(self, request, *args, **kwargs): 24 return render(request, 'login.html') 25 26 def post(self, request, *args, **kwargs): 27 name = request.POST.get('name') 28 pwd = request.POST.get('pwd') 29 ret = models.User.objects.filter(name=name, pwd=pwd).first() 30 if ret: 31 request.session['id'] = ret.pk 32 request.session['name'] = ret.name 33 url = request.GET.get('next') 34 if url: 35 return redirect(url) 36 else: 37 return redirect('/order/') 38 else: 39 return HttpResponse('登陆失败') 40 41 42from django.utils.decorators import method_decorator 43 44 45class Order(View): 46 @method_decorator(login_auth) 47 def get(self, request): 48 return HttpResponse('订单页面') 49 50cbv加装饰器 51 -先导入:from django.utils.decorators import method_decorator 52 -1 可以在方法上加装饰器: 53 @method_decorator(login_auth) 54 -2 可以在类上加 55 @method_decorator(login_auth,name='post') 56 @method_decorator(login_auth,name='get') 57 -3 可以加在dishpatch方法上 58 @method_decorator(login_auth) 59 一旦加在dishpatch,说明,所有方法都加了装饰器