/**
* 当键名不存在时设置键值
* @param string $key 键名
* @param mixed $value 键值
* @param int $time 过期时间,默认为-1,<=0则设置为永不过期
* @return boolean 是否成功
*/
public function setnx($key, $value, $time = -1)
{
try {
if ($time > 0) {
if ($this->handler->setnx($key, self::setValue($value))) {
$ret = $this->handler->expire($key, $time);
//如果执行失败，则尝试删除key
if ($ret === false) {
$this->handler->del($key);
}
return $ret !== false ? true : false;
}
return false;
}
return $this->handler->setnx($key, self::setValue($value));
} catch (RedisException $ex) {
self::exception($ex);
//连接状态置为false
$this->isConnected = false;
}
return false;
}
