Golang：在Redigo的RedisPool上选择DB

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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
    }