自定义中间件

Django5/settings.py

@@ -46,6 +46,7 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'helloWorld.mymid.md1.Md1',
 ]
 
 ROOT_URLCONF = 'Django5.urls'
@@ -73,8 +74,12 @@ WSGI_APPLICATION = 'Django5.wsgi.application'
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
+        'ENGINE': 'django.db.backends.mysql',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'NAME': 'django',
+        'USER': 'django',
+        'PASSWORD': '123456789',
+        'HOST': '148.135.85.49',
+        'PORT': '3306',
     }
 }
 

helloWorld/mymid/md1.py

@@ -0,0 +1,10 @@
+from django.utils.deprecation import MiddlewareMixin
+
+
+class Md1(MiddlewareMixin):
+    def process_request(self, request):
+        print("request请求来了")
+
+    def process_response(self, request, response):
+        print("请求处理完毕，将放回到页面")
+        return response

helloWorld/views.py

@@ -3,4 +3,5 @@ from django.shortcuts import render
 
 # Create your views here.
 def index(request):
-    return render(request, 'index2.html')
+    print("页面请求处理中")
+    return render(request, 'index.html')