redis

Posted 2020-11-11 kakawith

1，redis是一个软件，帮助开发者对一台机器的内存进行操作。

2，使用

import redis
conn = redis.Redis(host=‘47.94.172.250‘，port=6379,password=‘123456‘)
conn.set(‘x1‘,‘wangwangwang‘,ex=5)#5s后超时
val = conn.get(‘x1‘)
print(val)

3,连接池

import redis
pool = redis.ConnectionPool(host=‘10.211.55.4‘, port=6379,password=‘123456‘,max_connections=1000)
conn = redis.Redis(connection_pool=pool)
conn.set(‘foo‘, ‘Bar‘)

from redis_pool import POOL
while True:
    key = input(‘请输入key:‘)
    value = input(‘请输入value:‘)
    # 创建连接池
   # 去连接池中获取连接
     conn = redis.Redis(connection_pool=POOL)
    # 设置值
     conn.set(key, value)

4,自定义连接池

import redis
from django.shortcuts import render,HttpResponse
from utils.redis_pool import POOL

def index(request):
    conn = redis.Redis(connection_pool=POOL)
    conn.hset(‘kkk‘,‘age‘,18)

    return HttpResponse(‘设置成功‘)
def order(request):
    conn = redis.Redis(connection_pool=POOL)
    conn.hget(‘kkk‘,‘age‘)

    return HttpResponse(‘获取成功‘)

hset用于可哈希字段的赋值

5，手动操作redis

from django.shortcuts import render,HttpResponse
from django_redis import get_redis_connection
def index(request):
    conn = get_redis_connection("default")
    return HttpResponse(‘设置成功‘)
def order(request):
    conn = get_redis_connection("back")
    return HttpResponse(‘获取成功‘)

#settings中配置

CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://127.0.0.1:6379",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient",
            "CONNECTION_POOL_KWARGS": {"max_connections": 100},
            "PASSWORD": "密码",
        }
    }
}
CACHES = {
    "back": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://127.0.0.1:6379",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient",
            "CONNECTION_POOL_KWARGS": {"max_connections": 100},
            "PASSWORD": "密码",
        }
    }
}