golang中redis连接池

package main

import (
  "github.com/garyburd/redigo/redis"
  "fmt"
)

var pool *redis.Pool

func init()  {
  pool = &redis.Pool{
    MaxIdle:16,
    MaxActive:0,
    IdleTimeout:300,
    Dial: func() (redis.Conn, error) {
      return redis.Dial("tcp", "localhost:6379")
    },
  }
}

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

  _, err := c.Do("set", "abc", 100)
  if err != nil {
    fmt.Println("c.Do err ", err)
    return
  }

  r, err := redis.Int(c.Do("get", "abc"))
  if err != nil {
    fmt.Println("get abc failed",err)
    return
  }
  fmt.Println(r)
  fmt.Printf("r type is %T", r)
  pool.Close()
}