改登录跳转：app/common/controller/frontend

 // $this->success(__('Logout successful'), url('user/index'));

        $this->redirect('user/index', [], 302, ['referer' => 'index/user/index']);

转跳页面可以改成直接跳转
//$this->error(__('Please login first'), 'index/user/login');
                $this->redirect('user/login', [], 302, ['referer' => 'index/user/login']);