Exception: core\db\Exception
Message: System error "连接数据库时出错：SQLSTATE[HY000] [2002] Connection refused".
File: src/core/db/PDOMySQL.php
Line: 46

#0 /src/core/Factory.php(49): core\db\PDOMySQL->__construct(Array)
#1 /src/core/Factory.php(63): core\Factory::getInstance('db', '', Array)
#2 /src/core/mvc/Model.php(529): core\Factory::db()
#3 /src/core/mvc/Model.php(88): core\mvc\Model::db()
#4 /src/modules/system/model/OptionModel.php(36): core\mvc\Model->__construct()
#5 /src/core/App.php(196): system\model\OptionModel::getOptions()
#6 /src/core/App.php(296): core\App->init()
#7 /index.php(15): core\App::getInstance()
#8 {main}