Django自定义CBV

CBV,基于反射实现根据请求方式的不同,执行不同的方法.

查看view源码,使用反射getattr(self, request.method.lower(), self.http_method_not_allowed),调用对方法

原理:

url->view->dispatch->执行get,post....等方法

 

#Django_rest_framwork自定义CBV

from django.shortcuts import render
from django.views import View
from django.http import HttpResponse
# Create your views here.

class MyBaseView(object):
    def dispatch(self, request, *args, **kwargs):
        print('before')
        ret = super(MyBaseView, self).dispatch(request, *args, **kwargs)
        print('after')
        return ret

class studentView(MyBaseView, View):

    def get(self, request, *args, **kwargs):
        return HttpResponse('get')

    def post(self, request, *args, **kwargs):
        return HttpResponse('post')

    def put(self, request, *args, **kwargs):
        return HttpResponse('put')

    def delete(self, request, *args, **kwargs):
        return HttpResponse('delete')