golang redis 锁

const (

    distributedLockExpireTime = 60 * time.Second

    dLockRedisKey = "lock"

)

 

type dlock struct{}

 

func NewDistributedLock() *dlock {

    return &dlock{}

}

 

func (d *dlock) GetDistributedLock(key string, expireTime time.Duration) (r bool) {

    // true设置成功,false设置失败

    r, _ = globalRedis.SetNX(key, dLockRedisKey, expireTime).Result()

    return

}

func (d *dlock) ReleaseDistributedLock(key string) bool {

    r, _ := globalRedis.Del(key).Result()

    if r == 1 {

        return false //删除成功

    }

    return true //删除失败

}