Struts2 tiles How to set attribute values in dynamically…

In tiles.xml set attribute values in static

<tiles-definitions>

<definition name="baseLayout" template="/site/layout.jsp" >

<put-attribute name="body" value="/index.jsp"/>

<put-attribute name="top" 开发者_Go百科 value="/site/footer.jsp"/>

<put-attribute name="bottom" value="/site/header.jsp"/>

</definition>

</tiles-definitions>

Can I give attribute values in dynamically.. .It is passable. Please give me some tips ..

Use a Preparer. Here's how.