To extend the CreateAccountAction , there are different types of hook to achieve . Here we are going to discuss about Struts Action Hook.
Steps 1 : Add the struts action path and your custom implementation file in liferay-hook.xml :
<struts-action>
<struts-action-path>/login/create_account</struts-action-path>
<struts-action-impl>com.liferay.login.hook.action.CustomCreateAccountAction</struts-action-impl>
</struts-action>
Step 2: Create custom implemetation file [CustomCreateAccountAction] in above mentioned location . [com.liferay.login.hook.action]
public class CustomCreateAccountAction extends BaseStrutsPortletAction{
public CustomCreateAccountAction() {
// TODO...
