redis 的mq功能演示

wdx1992828

redis-cli - Command-line client to redis-server




2.1. Pub/Sub 订阅与发布



　　redis 提供基本的MQ 功能，下面我们做一个演示
　　开启第一个终端窗口，订阅first second

$ redis-cli
redis 127.0.0.1:6379> SUBSCRIBE first second
Reading messages... (press Ctrl-C to quit)
1) "subscribe"
2) "first"
3) (integer) 1
1) "subscribe"
2) "second"
3) (integer) 2

　　开启第二个终端窗口，分别发送first second

$ redis-cli
redis 127.0.0.1:6379>  PUBLISH second Hello
(integer) 1
redis 127.0.0.1:6379>  PUBLISH first Helloworld!!!
(integer) 1
redis 127.0.0.1:6379> quit

　　现在切换到第一个终端窗口，应该能够看到发送过来的字符串

$ redis-cli
redis 127.0.0.1:6379> SUBSCRIBE first second
Reading messages... (press Ctrl-C to quit)
1) "subscribe"
2) "first"
3) (integer) 1
1) "subscribe"
2) "second"
3) (integer) 2
1) "message"
2) "second"
3) "Hello"
1) "message"
2) "first"
3) "Helloworld!!!"