redis是非常好用的非關係型數據庫.常常用作緩存系統.
redis是鍵值存儲的.
首先你得連接數據庫
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import redis
redis_conn = None
try:
redis_conn = redis.StrictRedis(host="127.0.0.1", port=6379, db=0)
print "connected success"
except Exception, e:
print "could not connect to redis"
然後我們可以設置鍵值,並且設置超時時間
print "1,", redis_conn.set("session_id", "redis_value")
print "2,", redis_conn.expire("session_id", 30)
我們用print打印更能看清 set 和expire 的返回值.
兩個方法都是成功返回True,失敗返回False