To create reusable components with Tiles framework, we need to add following plugin definition code in struts-config.xml file:
[xml]
<plug-in className=”org.apache.struts.tiles.TilesPlugin” >
<set-property property=”definitions-config” value=”/WEB-INF/tiles-defs.xml” />
<set-property property=”moduleAware” value=”true” />
</plug-in>
[/xml]