发布订阅
Redis 发布订阅(pub/sub)是一种消息通信模式:发送者(pub)发送消息,订阅者(sub)接收消息。
Example:
订阅 channel:redisChat
> subscribe redisChat
1) "subscribe"
2) "redisChat"
3) (integer) 1
发布 channel:
> publish redisChat hello
(integer) 1
===========================
1) "subscribe"
2) "redisChat"
3) (integer) 1
1) "message"
2) "redisChat"
3) "hello"
查看所有的channel:
> pubsub channels
1) "redisChat"
退订channel:
> unsubscribe redisChat
1) "unsubscribe"
2) "redisChat"
3) (integer) 0