继承ViewSetMixin的视图类

from rest_framework.viewsets import ViewSetMixin
class Book6View(ViewSetMixin,APIView): #一定要放在APIVIew前
    def get_all_book(self,request):
        print("xxxx")
        book_list = Book.objects.all()
        book_ser = BookSerializer(book_list, many=True)
        return Response(book_ser.data)
    
# urls.py
    #继承ViewSetMixin的视图类，路由可以改写成这样
    path('books6/', views.Book6View.as_view(actions={'get': 'get_all_book'})),