go实现redigo的简单操作

package redisclient
import (
  "fmt"
  redigo "github.com/garyburd/redigo/redis"
)
var pool *redigo.Pool
func init() {
  redis_host := "127.0.0.1"
  redis_port := 6379
  pool_size := 20
  pool = redigo.NewPool(func() (redigo.Conn, error) {
    c, err := redigo.Dial("tcp", fmt.Sprintf("%s:%d", redis_host, redis_port))
    if err != nil {
      return nil, err
    }
    return c, nil
  }, pool_size)
}
func Get() redigo.Conn {
  return pool.Get()
}

package main
import (
  "redisclient"
  "logger"
  "github.com/garyburd/redigo/redis"
)
func main() {
  c := redisclient.Get()
  //记得销毁本次链连接
  defer c.Close()
  //写入数据
  _, err := c.Do("SET", "go_key", "redigo")
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while setting")
  }
  //判断key是否存在
  is_key_exit, err := redis.Bool(c.Do("EXISTS", "go_key"))
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while existing")
  }
  //获取value并转成字符串
  account_balance, err := redis.String(c.Do("GET", "go_key"))
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while getting")
  }
  //删除key
  _, err = c.Do("DEL", "go_key")
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while deleting")
  }
  //设置key过期时间
  _, err = c.Do("SET", "mykey", "superWang", "EX", "5")
  if err != nil {
    fmt.Println("redis set failed:", err)
  }
  //创建key时设置5s过期
  _, err := c.Do("SET", "go_key:ex", "redigo", "EX", 5)
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while setting")
  }
  //对已有key设置5s过期时间
  n, err := rs.Do("EXPIRE", "go_key", 5)
  if err != nil {
    logger.Runtime().Info(map[string]interface{}{"error": err}, "error while setting")
  } else if n != int64(1) {
    fmt.Println("failed")
  }
}