一 APIView:
class PublishView(APIView): def get(self,request):
publish_list=Publish.objects.all()
ret=serialize("json",publish_list) return HttpResponse(ret) def post(self,request):
pass
#url(r'^publishes/', views.PublishView.as_view()),
#url(r'^publishes/', APIView.as_view()),
#url(r'^publishes/', APIView.as_view()),
#url(r'^publishes/', View.view),
当GET请求方法来的时候:
View.view(request):
return self.dispatch(request, *args, **kwargs)
---- APIView.dispatch(request, *args, **kwargs):
if request.method.lower() in self.http_method_names:
handler = getattr(self, request.method.lower()) response = handler(request, *args, **kwargs)
return response 进行的其实是这四步:
#url(r'^publishes/', views.PublishView.as_view()),
#url(r'^publishes/', APIView.as_view()),
#url(r'^publishes/', APIView.as_view()),
#url(r'^publishes/', View.view),
①
当请求走到:view = super(APIView, cls).as_view(**initkwargs)的时候,因为APIView本身继承的就是我们的View类。于是我们取执行View中的as_vi方法
② 执行APIView的父类View中的as_view()方法。
③ 执行APIView中的dispatch方法。