使用模型查询报数据库连接错误，db可以

$goods = Good::where('id', $this->goods_id)->where('status', 1)->first();

PDOException: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES) in /home/www/wwwroot/ln.zongcandaozhang.cn/suanming/vendor/illuminate/database/Connectors/Connector.php:70
Stack trace: