Django Middleware自定义中间件及作用详解

class MyMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response
    def __call__(self, request):
        # 请求处理前的代码
        response = self.get_response(request)
        # 请求处理后的代码
        return response

import logging
class LoggingMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response
    def __call__(self, request):
        logging.info(f'Request: {request.method} {request.path}')
        response = self.get_response(request)
        logging.info(f'Response: {response.status_code}')
        return response

from django.http import HttpResponseForbidden
class IPBlockMiddleware:
    BLOCKED_IPS = ['192.168.1.1', '10.0.0.1']
    def __init__(self, get_response):
        self.get_response = get_response
    def __call__(self, request):
        ip = request.META.get('REMOTE_ADDR')
        if ip in self.BLOCKED_IPS:
            return HttpResponseForbidden("Forbidden")
        return self.get_response(request)

MIDDLEWARE = [
    # ...
    'myapp.middleware.LoggingMiddleware',
    'myapp.middleware.IPBlockMiddleware',
    # ...
]