Django 中间件

import random

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

from Django09 import settings

class AppMiddle(MiddlewareMixin):
def process_request(self, request):
# ip
print(request.META['REMOTE_ADDR'])

ip = request.META['REMOTE_ADDR']
# 是否存在
if ip in getattr(settings, 'BLOCKED_IPS', []):
return HttpResponse('<h1> 服务器正在抢修中，请稍后.... </h1>')

class TestMiddle(MiddlewareMixin):
def process_request(self, request):
ip = request.META['REMOTE_ADDR']

msg = ''
if ip == '10.20.152.90':
msg = '一等奖-MacBookPro'
elif ip == '127.0.0.1':
msg = '二等奖-Ipad'
elif ip == '10.20.152.76':
msg = '三等奖-iphone x'
else:
temp = random.randrange(1,3)
if temp == 1:
msg = '特等奖'
elif temp == 2:
msg = '鼓励奖'
else:
msg = '继续努力!'

return render(request, 'randomView.html', context={'msg':msg})

添加到配置中
settings.py

MIDDLEWARE = [
'MyMiddleWare.app.appmiddleware.AppMiddle', # 黑名单
'MyMiddleWare.app.appmiddleware.TestMiddle',
]

## 黑名单
BLOCKED_IPS = [
'10.20.152.25',
'10.20.152.76',
'10.20.152.90',
'10.20.152.53'
]