redis发布订阅

redis发布订阅

redis通过PUBLISH、SUBSCRIBE、PSUBSCRIBE等命令实现发布和订阅功能

订阅端

127.0.0.1:6379> SUBSCRIBE yl01 # 订阅yl01频道
Reading messages... (press Ctrl-C to quit)
1) "subscribe"
2) "yl01"
3) (integer) 1

发布端

127.0.0.1:6379> PUBLISH yl01 "hello" # 通过yl01频道发送消息
(integer) 1
127.0.0.1:6379> PUBLISH yl01 "i am yl"
(integer) 1
127.0.0.1:6379> 

订阅段接收到发布端消息

127.0.0.1:6379> SUBSCRIBE yl01
Reading messages... (press Ctrl-C to quit)
1) "subscribe"
2) "yl01"
3) (integer) 1
1) "message" # 消息
2) "yl01" # 频道
3) "hello" # 消息内容
1) "message"
2) "yl01"
3) "i am yl"