ZZCX_yii/backend/modules/zzcs/zzcs.php

<?php

namespace backend\modules\zzcs;
use Yii;
/**
 * zzcs module definition class
 */
class zzcs extends \yii\base\Module
{
    /**
     * @inheritdoc
     */
    public $controllerNamespace = 'backend\modules\zzcs\controllers';

    /**
     * @inheritdoc
     */
    public function init()
    {
        define('APP_MODULES_PATH', __DIR__);
        parent::init();
        $cookies = Yii::$app->request->cookies;
        $user_id = $cookies->getValue('user_id');
        if(!$user_id){
            header("Location: http://". CS_DOMAIN. "/login.html");
            //确保重定向后，后续代码不会被执行
            exit;
        }
        // custom initialization code goes here
    }
}