yii2:模块

modules/ 

           demo/

                 controllers/DefaultController.php
                 views/default/index.php
                 DemoModule.php

 'modules' => [          
           'demo' => [
                'class' => 'app\modules\demo\DemoModule',               
            ],

        ],

namespace app\modules\demo;

/**
 * demo module definition class
 */
class DemoModule extends \yii\base\Module
{
    /**
     * @inheritdoc
     */
    public $controllerNamespace = 'app\modules\demo\controllers';

    /**
     * @inheritdoc
     */
    public function init()
    {
        parent::init();

        // custom initialization code goes here
    }
}

namespace app\modules\demo\controllers;

use Yii;
use yii\web\Controller;

//use app\compon
/**
 * Default controller for the `demo` module
 */
class DefaultController extends Controller
{

    

    /**
     * Renders the index view for the module
     * @return string
     */
    public function actionIndex()
    {

    	echo "hello";exit;
    }
}