Struts Tiles 是一个页面模板引擎，属于视图层。定义页面布局，不指定里面的内容，当web页面运行时，才把特定的jsp内容插入到模板中显示。

该案例涉及到的file：web.xml,struts-default.xml,tiles-defs.xml,sidepanel.jsp, welcome.jsp

1.  Web.xml

<!--Action Servlet Configuration -->

<servlet>

<servlet-name>action</servlet-name>

<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

<init-param>

<param-name>config</param-name>

<param-value>/WEB-INF/struts-default.xml</param-value>

</init-param>

<init-param>

<param-name>config/acctmgmt</param-name>

<param-value>/WEB-INF/struts-acctmgmt.xml</param-value>

</init-param>

<init-param>

<param-name>debug</param-name>

<param-value>3</param-value>

</init-param>

<init-param>

<param-name>detail</param-name>

<param-value>3</param-value>

</init-param>

<load-on-startup>2</load-on-startup>

</servlet>

2.  Struts-default.xml

引入tiles-defs.xml文件

<plug-inclassName="org.apache.struts.tiles.TilesPlugin" >

<set-propertyproperty="definitions-config"

value="/WEB-INF/tiles-defs.xml"/>

<set-propertyproperty="moduleAware" value="false" />

</plug-in>

3.  tiles-defs.xml

定义tiels，创建tiles组件，配置模板资源

<tiles-definitions>

<!--site layout -->

<definitionname="siteLayout" path="/sitelayout.jsp">

<putname="header" value="header.jsp" />

<putname="main" value="mainLayout" />

<putname="footer" value="footer.jsp" />

</definition>

<!--layout of main area -->

<definitionname="mainLayout" path="mainlayout.jsp">

<putname="sidepanel" value="sideLayout" />

<putname="content" value="contents" />

</definition>

<!--layout of sidepane -->

<definitionname="sideLayout" path="sidepanel.jsp">

<putname="leftupper"value="../upper.jsp" />

<putname="leftlower"value="../lower.jsp" />

</definition>

<!--layout of content area -->

<definitionname="contents" path="contents.jsp">

<putname="section1" value="" type="string" />

<putname="section2" value="" type="string" />

<putname="section3" value="" type="string" />

<putname="section4" value="" type="string" />

<putname="section5" value="" type="string" />

<putname="section6" value="" type="string" />

</definition>

</tiles-definitions>

4.  sidepanel.jsp

引用tiles，创建模板布局

<%@ tagliburi="/WEB-INF/struts-tiles.tld" prefix="tiles" %>

<table role="presentation"cellpadding="2" cellspacing="0">

<tr>

<tdvalign="top">

<table role="presentation">

<tiles:insert attribute="leftupper"ignore="true"/>

<tr>

<td>

<div>

<tiles:insert attribute="leftlower" ignore="true"/>

</div>

</td>

</tr>

</table>

</td>

</tr>

</table>

5.  welcome.jsp

在jsp页面中使用tiles

<%@ tagliburi="/WEB-INF/struts-tiles.tld" prefix="tiles" %>

<tiles:insert definition="siteLayout"flush="true">

<tiles:put name="pageTitle" type="string"value="Site Entrance" />

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

<tiles:put name="content"type="string">

<!-- page content goes here -->

</tiles:put>

</tiles:insert>