Redis进阶之redis的生命周期

D:\Redis-x64-3.2.100>redis-cli.exe -h 127.0.0.1 -p 6379127.0.0.1:6379> set aa "123"(error) NOAUTH Authentication required.127.0.0.1:6379> auth kingredisOK

set 一个key 为bb ，value为"aa"的对象，设置expire为30s,接下来我们看看127.0.0.1:6379> set bb "aa" ex 30 OK127.0.0.1:6379> TTL bb(integer) 25127.0.0.1:6379> get bb"aa"127.0.0.1:6379> TTL bb(integer) 14127.0.0.1:6379> getbb(error) ERR unknown command 'getbb'127.0.0.1:6379> get bb"aa"127.0.0.1:6379> TTL bb(integer) 5

127.0.0.1:6379> get bb(nil)

说明到期了以后，redis会自动删除过期的key