django中间件的使用

mymiddleware.py

from django.http import HttpResponse
from django.utils.deprecation import  MiddlewareMixin

class MyMw(MiddlewareMixin):
    #路由中间件
    def process_request(self,request):

        print("我是process_request，路由执行前执行")
        #默认不反会就是自动默认返回None

    #视图中间件
    def process_view(self,request,callback,callback_args,callback_kwargs):
        print("请求达到试图之前调用")

    #响应中间件
    def process_response(self,request,response):
        print("响应前执行")
        return response