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redis.go
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redis.go
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package redis
import (
"flag"
"fmt"
"time"
"github.com/garyburd/redigo/redis"
)
// 声明一些全局变量
var (
Conn redis.Conn
Pool *redis.Pool
redisServer = flag.String("redisServer", "127.0.0.1:6379", "")
redisPassword = flag.String("redisPassword", "liburdi/go-blogs", "")
)
// 初始化一个pool
func newPool(server, password string) *redis.Pool {
return &redis.Pool{
MaxIdle: 3,
IdleTimeout: 60 * time.Second,
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", server)
if err != nil {
return nil, err
}
if _, err := c.Do("AUTH", password); err != nil {
defer c.Close()
return nil, err
}
return c, err
},
TestOnBorrow: func(c redis.Conn, t time.Time) error {
if time.Since(t) < time.Minute {
return nil
}
_, err := c.Do("PING")
return err
},
}
}
func init() {
flag.Parse()
Pool = newPool(*redisServer, *redisPassword)
}
func Set(key, value string) interface{} {
Conn = Pool.Get()
defer Conn.Close()
//redis操作
v, err := Conn.Do("SET", key, value)
if err != nil {
fmt.Println(err)
}
//正常情况情况下返回ok,已设置返回nil,不需要多返回值
return v
}
func Get(key string) (string, error) {
Conn = Pool.Get()
defer Conn.Close()
v, err := redis.String(Conn.Do("GET", key))
if err != nil {
fmt.Println(err)
}
return v, err
}