function getRedis()
{
if (empty($this->redis) || !$this->redis->info()) {
$this->redis = new \Redis();
$redisConfig = \Config\Redis::getConfig();
$res = $this->redis->connect($redisConfig['host'], $redisConfig['port']);
if (empty($res)) {
echo "connect Redis failed!\n";
}
}
return $this->redis;
}