How to configure Struts such that for some urls it will not go to convention plugin. Assuming by default it will go to convention plugin.

Question

I have struts.xml like this.

<struts>
    <constant name="struts.convention.action.suffix" value="Controller"/>
    <constant name="struts.convention.action.mapAllMatches" value="true"/>
    <constant name="struts.convention.default.parent.package" value="rest-default"/>
    <constant name="struts.convention.package.locators" value="controllers"/>
    <constant name="struts.convention.relative.result.types" value="velocity"/>
</struts>

I want some urls to not to follow the convention plugin. URL which are not mapped to any action should go to some default action. How to configure this?