lumen 微框架处理不存在的路由

在app/Exceptions/Handler 中捕获路由不存在异常，返回不存在提示信息

public function render($request, Exception $e)
    {
        if($e instanceof NotFoundHttpException){
            return json_encode(['status'=>0,'msg'=>'page not found!']);
        }
        return parent::render($request, $e);
    }

引用地址  https://laracasts.com/discuss/channels/general-discussion/how-do-i-create-a-custom-404-error-page