PHP （Yii2） 自定义业务异常类（可支持返回任意自己想要的类型数据）

public function beforeAction($action)
    {
        return parent::beforeAction($action);
    }

    public function runAction($id, $params = [])
    {
        try {
            return parent::runAction($id, $params);
        } catch (MyException $myException) {
            //此处返回业务错误 比如返回json字符串错误
            $result = [
                ‘status‘ => $myException->getCode(),
                ‘message‘ => $myException->getMessage(),
                ‘data‘ => null
            ];
            return json_encode($result, true);

        } catch (\Exception $ex) {
            throw  $ex;
        }
    }

    public function afterAction($action, $result)
    {
        return parent::afterAction($action, $result);
    }

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2018/12/8 0008
 * Time: 14:38
 */

namespace app\librarys;


class MyException extends \Exception
{

}

throw new MyException(‘错误信息‘);