django的中间件

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',


    # 定义了2个自定义的中间件
    'middle.md.middle_first',
    'middle.md.middle_second'
]

　　

#Auther Bob
#--*--conding:utf-8 --*--

from django.utils.deprecation import MiddlewareMixin
import time
from django.shortcuts import HttpResponse

# 中间件就是一个类，下面我们自定义了2个中间件，中间件又叫做管道

class middle_first(MiddlewareMixin):
    def process_request(self,request):
        print("middle_first--process_request",time.time())
        return HttpResponse("大爷慢走")
    def process_response(self,request,response):
        print("middle_first--process_response", time.time())
        print(response, type(response))
        return response

class middle_second(MiddlewareMixin):
    def process_request(self,request):
        print("middle_second--process_request",time.time())


    def process_response(self,request,response):
        print("middle_second--process_response", time.time())
        print(response,type(response))
        return response