Django 中间件 使用

Django 中间件 使用

• 在应用之下创建 middleware.py

  from django.utils.deprecation import MiddlewareMixin
  from utils.jwt import dangerous
  from django.core.cache import cache
  from django.http import JsonResponse
  
  class LoginMiddleWare(MiddlewareMixin):
    # 请求之前执行
      def process_request(self,request):
          if request.path_info not in ['/app02/login/']:
              token = (request.META.get('HTTP_TOKEN'))
              tmp = dangerous.decry(token)
              if not tmp:
                  print(Response({"status":9000,"msg":"token不合法"}))
              key = "token_" + str(tmp.get('uid',0))
              tmp = cache.get(key)
              if not cache.get(key):
                  print('token 不合法')
                  return JsonResponse({"status":9000,"msg":"token不合法"})

• 注册到settings.py 中的 MIDDLEWARE中

  MIDDLEWARE = [
      'django.middleware.security.SecurityMiddleware',
      'django.contrib.sessions.middleware.SessionMiddleware',
      'corsheaders.middleware.CorsMiddleware',
      'django.middleware.common.CommonMiddleware',
      # 'django.middleware.csrf.CsrfViewMiddleware',
      'django.contrib.auth.middleware.AuthenticationMiddleware',
      'django.contrib.messages.middleware.MessageMiddleware',
      'django.middleware.clickjacking.XFrameOptionsMiddleware',
      'app02.middleware.LoginMiddleWare'
  ]