Do you want to migrate your Spring MVC portlet into DXP ? yooo here are the steps you will have to follow to get it migrate.
Before we jump into steps, let me light up regarding spring mvc. Actually Spring MVC is purely used for web project architect and there is no any specific intention to get it convert into OSGi module jar. So here we may not be able to convert it into module jar but such kind of portlets will get deployed as a war file only and Liferay container will convert into OSGi compatible WAB (Web Application Bundle) project by Liferay WAB Generator.
Follow below steps to get it convert