go 使用redis

import (

    redigo "github.com/gomodule/redigo/redis"

)

func NewPool() *redigo.Pool {
    //return &redigo.Pool{
    //    MaxIdle: 3,
    //    IdleTimeout: 240 * time.Second,
    //    // Dial or DialContext must be set. When both are set, DialContext takes precedence over Dial.
    //    Dial: func () (redigo.Conn, error) { return redigo.Dial("tcp", "localhost",
    //        redigo.DialPassword("123"),
    //        ) },
    //}

    // timeout := time.Duration(20)

    addr := fmt.Sprintf("%s:%s", "127.0.0.1", "6379")

    redisPool := &redigo.Pool{
        MaxIdle:         10,
        MaxActive:       50,
        IdleTimeout:     240 * time.Second,
        Wait:            true,
        MaxConnLifetime: 60 * time.Second,
        Dial: func() (redigo.Conn, error) {
            con, err := redigo.Dial("tcp", addr,
                redigo.DialPassword(""),
                redigo.DialDatabase(0))

            _, err = con.Do("PING")
            return con, err
        },
        TestOnBorrow: func(c redigo.Conn, t time.Time) error {
            if time.Since(t) < time.Minute {
                return nil
            }
            _, err := c.Do("PING")
            if err != nil {
                fmt.Println(err)
            }
            return err
        },
    }

    return redisPool
}

func main() {
    pool := NewPool()
    conn := pool.Get()
    defer conn.Close()

    s, err := conn.Do("LPUSH", "r_list", "tik tok")

    log.Println(s)

    if err == nil {
        log.Println("this is ok")
    } else {
        log.Println("this is failed")
    }
}