protected function init()
{
// 获取redis实例
$this->redis = Boot::redis();
$this->db = Boot::DB();
// 从配置文件中获取最大limit并写入到redis中
$size = Crawler::getMaxLimit();
$this->redis->set('limitSize', $size);
if (DEBUG == true) {
echo 'the usernames at redis :';
var_dump($this->redis->llen('usernames'));
}
if (!$this->redis->llen('usernames')) {
// 初始化数据
$this->getUsernames(0);
}
}
