繼上一次的示例工程http://www.cnblogs.com/EasonJim/p/7083165.html，使用的就是ConfigDecoratorMapper映射器，通過指定目錄下的頁面，都同一走模板頁。

在使用上，只需設置兩處地方，在基礎頁面無需配置。

1、decorators.xml

<?xml version="1.0" encoding="UTF-8"?>
<decorators defaultdir="/decorators">
    <decorator name="basic-theme" page="basic-theme.jsp">
        <pattern>/data/*</pattern>
 

    </decorator>
</decorators>

2、sitemesh.xml

<sitemesh>
    <property name="decorators-file" value="/WEB-INF/decorators.xml"/>
    <excludes file="${decorators-file}"/>

    <page-parsers>
        <parser content-type="text/html" class="com.opensymphony.module.sitemesh.parser.HTMLPageParser"
 
 />
    </page-parsers>
    <decorator-mappers>
        <mapper class="com.opensymphony.module.sitemesh.mapper.PageDecoratorMapper">
            <param name="property.1" value="meta.decorator" />
            <param name="property.2" value="decorator" />
        </
 
mapper>
        <mapper class="com.opensymphony.module.sitemesh.mapper.FrameSetDecoratorMapper"/>
        <mapper class="com.opensymphony.module.sitemesh.mapper.PrintableDecoratorMapper">
            <param name="decorator" value="printable" />
            <param name="parameter.name" value="printable" />
            <param name="parameter.value" value="true" />
        </mapper>
        <mapper class="com.opensymphony.module.sitemesh.mapper.FileDecoratorMapper"/>
        <mapper class="com.opensymphony.module.sitemesh.mapper.ConfigDecoratorMapper">
            <param name="config" value="${decorators-file}" />
        </mapper>
    </decorator-mappers>
</sitemesh>

參考：

https://web.archive.org/web/20071008163555fw_/http://www.opensymphony.com/sitemesh/api/com/opensymphony/module/sitemesh/mapper/ConfigDecoratorMapper.html

SiteMesh2-sitemesh.xml的ConfigDecoratorMapper映射器的用法