magento复写core中的controller

先在controllers目录下新建Customer文件夹,建立Nano_App_AccountController类文件，继承原有的Mage_Customer_AccountController类

app/code/local/Nano/App/controllers/Customer/AccountController.php

<?php
require_once Mage::getModuleDir('controllers', "Mage_Customer").DS."AccountController.php";
class Nano_App_AccountController extends Mage_Customer_AccountController
{
    /**
     * Login post action
     */
    public function loginPostAction()
    {
        echo 'login post has been rewritten';
    }
}

再修改app模块的配置文件config.xml，在global标签下对AccountContoller进行复写

app/code/local/Nano/App/etc/config.xml

<global>
    <!-......-->
     <rewrite>
         <Nano_App>
              <from><![CDATA[#^/customer/account/loginPost/#]]></from>
              <to>/app/customer/account/loginPost/</to>
          </Nano_App>
      </rewrite>
      <!-......-->
</global>