07 Redis存储Session

Posted 2022-03-24 a2534786642

django-redis-sessions 官方文档：https://pypi.org/project/django-redis-sessions/

dango-redis 官方文档：http://niwinz.github.io/django-redis/latest/#_configure_as_cache_backend

安装模块：

1 安装模块
2  pip3 install django-redis-sessions
3 或者
4 pip3 install django-redis

本文这里用的是django 2.0语法，创建django项目

django-admin startproject mydjango

修改settings.py文件加入字段：

 1 CACHES = 
 2     "default": 
 3         "BACKEND": "django_redis.cache.RedisCache",
 4         "LOCATION": "redis://127.0.0.1:6379/0",
 5         "OPTIONS": 
 6             "CLIENT_CLASS": "django_redis.client.DefaultClient",
 7             "PASSWORD": "",
 8 #             "PARSER_CLASS": "redis.connection.HiredisParser",
 9 #             "SOCKET_TIMEOUT": 10,
10 #             "CONNECTION_POOL_CLASS_KWARGS": 
11 #                 "max_connections": 2,
12 #             
13         
14     
15 
16   
17 #SESSION_COOKIE_AGE = 30 * 60 #设置session过期时间为30分钟
18 SESSION_ENGINE = ‘django.contrib.sessions.backends.cache‘

创建webapp

django-admin startapp app01

编写session视图函数 webapp.views

 1 from django.shortcuts import render,HttpResponse
 2 
 3 def set_session(request):
 4     request.session[‘username‘]=‘zhanan‘
 5     request.session[‘age‘]=18
 6     return HttpResponse("设置sesson成功")
 7 
 8 def get_session(request):
 9     username=request.session[‘username‘]
10     age = request.session[‘age‘]
11     return HttpResponse(username+":"+str(age))

添加url路由

vim mydjango/urls.py

1 from django.contrib import admin
2 from django.urls import path
3 from webapp import views
4 urlpatterns = [
5     path(‘set_session/‘,views.set_session),
6     path(‘get_session/‘,views.get_session),
7     path(‘admin/‘, admin.site.urls),

确保启动redis服务端，默认方式启动

redis-server &

redis-cli 连接无误
发送ping命令得到pong即可

启动django

python3 manage.py runserver 0.0.0.0:8000

访问视图，设置一条session信息，存入redis数据库

检查redis数据库，是否存在一条key

1 127.0.0.1:6379> keys *
2 1) ":1:django.contrib.sessions.cachep220moqvxclz2hyjqmbybqs3v8ck2i39"
3 
4 获取这个key的值
5 127.0.0.1:6379> get :1:django.contrib.sessions.cachep220moqvxclz2hyjqmbybqs3v8ck2i39
6 "\\x80\\x04\\x95!\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x94(\\x8c\\busername\\x94\\x8c\\x06chaoge\\x94\\x8c\\x03age\\x94K\\x12u."