1. 在app文件夹里新建middleware.py
2. 继承MiddlewareMixin， 编写中间件类，重写process_request、process_response钩子函数

from django.http import HttpRequest, HttpResponse
from django.utils.decorators import decorator_from_middleware
from django.utils.deprecation import MiddlewareMixinclass MyMiddleware(MiddlewareMixin):def __init__(self, get_response=None):super().__init__(get_response)def process_request(self, request: HttpRequest) -> None:"""视图函数前 钩子函数"""...passdef process_response(self, request: HttpRequest, response: HttpResponse) -> HttpResponse:"""视图函数后 钩子函数"""...return response# 中间件类包装成装饰器
my_middleware = decorator_from_middleware(MyMiddleware)

3. 使用@MyMiddleware装饰视图函数

如果要全局使用中间件

需要在settings⽂件中配置⾃定义中间件