redis的发布订阅

简介

进程间的消息通信模式: 发送者(pub)发送消息,订阅者(sub)接收消息

示例,订阅多个

127.0.0.1:8686[1]> SUBSCRIBE c1 c2 c3
Reading messages... (press Ctrl-C to quit)
1) "subscribe"
2) "c1"
3) (integer) 1
1) "subscribe"
2) "c2"
3) (integer) 2
1) "subscribe"
2) "c3"
3) (integer) 3

    # 另外一个客户端通过c1频道发送消息
    remoteSelf:1> publish c1 "hello c1"
    "1"

1) "message"
2) "c1"
3) "hello c1"

通过正则匹配订阅多个

[root@izm5e2q95pbpe1hh0kkwoiz ~]# redis-cli -p 8686
127.0.0.1:8686> auth ****(密码)
OK
127.0.0.1:8686> select 1
OK
127.0.0.1:8686[1]> PSUBSCRIBE new*
Reading messages... (press Ctrl-C to quit)
1) "psubscribe"
2) "new*"
3) (integer) 1

    # 发送订阅信息
    remoteSelf:1>publish new1 "hello new1"
    "1"

1) "pmessage"
2) "new*"
3) "new1"
4)