安装 
go get -u github.com/gomodule/redigo/redis
连接 
var (
   redisHost = "127.0.0.1:6379"
   redisPass = "root"
)

//创建redis连接池
func newRedisPool() *redis.Pool {
   return &redis.Pool{
      MaxIdle: 50,
      MaxActive: 30,
      IdleTimeout: 300 * time.Second,
      Dial: func()(redis.Conn, error) {
         //1. 打开连接
         conn, err := redis.Dial("tcp", redisHost)
         if err != nil {
            fmt.Println(err)
            return nil, err
         }

         //2. 访问认证
         if _, err = conn.Do("AUTH", redisPass); err != nil {
            conn.Close()
            return nil, err
         }
         return conn, nil
      },

      //=定时检查连接有没有效
      TestOnBorrow: func(conn redis.Conn, t time.Time) error {
         if time.Since(t) < time.Minute {
            return nil
         }
         _, err := conn.Do("PING")
         return err
      },
   }
}


func RedisPool() *redis.Pool {
   return newRedisPool()
}

func main() {
   //获得redis连接
   rConn := RedisPool().Get()
   defer rConn.Close()
}