Golang：在Redigo的RedisPool上选择DB

func initPool(server, pass string, database int) *redis.Pool {
	return &redis.Pool{
		MaxIdle:   80,
		MaxActive: 12000,
		Dial: func() (redis.Conn, error) {
			conn, err := redis.Dial("tcp", server,
				redis.DialReadTimeout(time.Second*10),
				redis.DialConnectTimeout(time.Second*30),
				redis.DialPassword(pass),
				redis.DialDatabase(database),
			)
			if err != nil {
				log.Println("ERROR: fail init redis pool:", err.Error())
				return nil, fmt.Errorf("ERROR: fail init redis pool: %s", err.Error())
			}
			return conn, err
		},
	}
}

　　

第二种方法

&redis.Pool{
    MaxIdle:   80,
    MaxActive: 12000, // max number of connections
    Dial: func() (redis.Conn, error) {
        c, err := redis.Dial("tcp", host+":"+port)
        if err != nil {
            return nil, err
        }
        _, err := c.Do("SELECT", dbNum)
        if err != nil {
           c.Close()
           return nil, err
        }
        return c, nil
    }