Go语言：go-redis客户端之消息的订阅subscribe与发布publish

 订阅subscribe

package main

import (
        "fmt"
        "github.com/go-redis/redis"
)

func main() {
        client := redis.NewClient(&redis.Options{
                Addr:     "127.0.0.1:6379",
                Password: "",
                DB:       0,
        })

        pubsub := client.Subscribe("chat")
        defer pubsub.Close()
        for msg := range pubsub.Channel() {
                fmt.Printf("channel=%s message=%s\n", msg.Channel, msg.Payload)
        }
}

订阅psubscribe

package main

import (
        "fmt"
        "github.com/go-redis/redis"
)

func main() {
        client := redis.NewClient(&redis.Options{
                Addr:     "127.0.0.1:6379",
                Password: "",
                DB:       0,
        })

        pubsub := client.PSubscribe("*")
        defer pubsub.Close()
        for msg := range pubsub.Channel() {
                fmt.Printf("channel=%s message=%s\n", msg.Channel, msg.Payload)
        }
}

发布publish 

package main

import (
        "fmt"
        "github.com/go-redis/redis"
)

func main() {
        client := redis.NewClient(&redis.Options{
                Addr:     "127.0.0.1:6379",
                Password: "",
                DB:       0,
        })
        n, err := client.Publish("chat", "hello").Result()
        if err != nil{
                fmt.Printf(err.Error())
                return
        }
        fmt.Printf("%d clients received the message\n", n)
}