Use a Tile Layout

In the previous section we created a layout is common for both dog.jsp and cat.jsp , In this section we will see how we can use that layout for both dog.jsp and cat.jsp.

First sep is to Import the tiles taglib with the taglib directive.
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>

Second step is to Use tiles:insert to insert the tile layout into the current page.

<tiles:insert page="/layout.jsp" flush="true">
<tiles:put name="title" type="string" value="DOG" />
<tiles:put name="header" value="/header.jsp" />
<tiles:put name="footer" value="/footer.jsp" />
<tiles:put name="content" value="/dogContent.jsp"/>
</tiles:insert>

Third step is to Use tiles:put to pass string parameters.

<tiles:put name="title" type="string" value="Dog" />

Notice how tiles:put passes string parameters to the tile layout. The tiles:put's name attribute tag specifies the parameter name. The tiles:put's type attribute specifies the parameter's type. Lastly, the value parameter is passed the title attribute's value. That lets you pass simple strings as parameters when the tile layout (display function) gets called with the tiles:insert tag. The parameters become tile
layout attributes; that is, they get inserted into the tile scope of the tile layout.

Fourth step is to Use tiles:put to pass in parameter tiles.

<tiles:put name="header" value="/header.jsp" />
<tiles:put name="footer" value="/footer.jsp" />
<tiles:put name="content" value="/dogContent.jsp"/>