装饰器
django中装饰器的使用:
首先自定义一个装饰器
def my_decorator(func): def inner(*args, **kwargs): print('装饰器的功能') return func(*args, **kwargs) return inner
一、基于函数的视图使用装饰器
@my_decorator def add_student(request): return render(request, 'add_student.html')
二、基于类的视图使用装饰器
1.在每个方法前注册装饰器
from django.views import View from django.utils.decorators import method_decorator class AddStudent(View): @method_decorator(my_decorator) def get(self): return render(self.request,'add_students.html') @method_decorator(my_decorator) def post(self): name = self.request.POST.get('name') pwd = self.request.POST.get('password') return redirect('/students/')
2.在类的前面注册装饰器
from django.views import View from django.utils.decorators import method_decorator @method_decorator(my_decorator,name='get') @method_decorator(my_decorator,name='post') class AddStudent(View): def get(self): return render(self.request,'add_students.html') def post(self): name = self.request.POST.get('name') pwd = self.request.POST.get('password') return redirect('/students/')