使用 mixins.CreateModelMixin 和 generice.GenericAPIView 重写视图函数的 post 请求后，视图无法注册到 routers，如何处理使得上级路由下可以展示子路由？

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views.py 如下：

class RegisterView(generics.GenericAPIView, mixins.CreateModelMixin,): queryset = User.objects.all() serializer_class = UserSerializer

def post(self, request, *args, **kwargs):
    username = request.POST.get('username')
    password = request.POST.get('password')

    User.objects.create_user(username=username,
                             password=password)

    return Response('create user success!!')

urls.py 如下： router = DefaultRouter()

urlpatterns = [ path('', include(router.urls)), path('register/',views.RegisterView.as_view()), ]

想把 register 放到 defaultrouter 中，求解