def my_decorator(func):
  def wrapper(request, *args, **kwargs):
    print('自定义装饰器被调用了')
    print('请求路径%s' % request.path)
    return func(request, *args, **kwargs)
  return wrapper

class DemoView(View):
  def get(self, request):
    print('get方法')
    return HttpResponse('ok')

  def post(self, request):
    print('post方法')
    return HttpResponse('ok')

urlpatterns = [
  url(r'^demo/$', my_decorate(DemoView.as_view()))
]

# 为全部请求方法添加装饰器
@method_decorator(my_decorator, name='dispatch')
class DemoView(View):
  def get(self, request):
    print('get方法')
    return HttpResponse('ok')

  def post(self, request):
    print('post方法')
    return HttpResponse('ok')


# 为特定请求方法添加装饰器
@method_decorator(my_decorator, name='get')
class DemoView(View):
  def get(self, request):
    print('get方法')
    return HttpResponse('ok')

  def post(self, request):
    print('post方法')
    return HttpResponse('ok')

from django.utils.decorators import method_decorator

# 为特定请求方法添加装饰器
class DemoView(View):

  @method_decorator(my_decorator) # 为get方法添加了装饰器
  def get(self, request):
    print('get方法')
    return HttpResponse('ok')

  @method_decorator(my_decorator) # 为post方法添加了装饰器
  def post(self, request):
    print('post方法')
    return HttpResponse('ok')

  def put(self, request): # 没有为put方法添加装饰器
    print('put方法')
    return HttpResponse('ok')