tiles

终于看懂了tiles的大体。初看时确实会感觉十分的麻烦。明白了各处的配置后，豁然开朗，真是结构清晰，以下是一段经典的代码：
<!-- ========== Action Mapping Definitions ============================== -->
<action-mappings>
<!-- Action mapping for profile form -->
<action path="/login"
type="com.ncu.test.LoginAction"
name="loginForm"
scope="request"
input="tile.userLogin"
validate="true">
<forward name="success" path="tile.userMain"/>
</action>
</action-mappings>
Tiles配置文件：tiles-defs.xml
<!DOCTYPE tiles-definitions PUBLIC
"-//Apache Software Foundation//DTD Tiles Configuration//EN" "http://jakarta.apache.org/struts/dtds/tiles-config.dtd">
<tiles-definitions>
<!-- ======================================================= -->
<!-- Master definitions -->
<!-- ======================================================= -->
<!-- Page layout used as root for all pages. -->
<definition name="rootLayout" path="/tiles-layouts/rootLayout.jsp">
<put name="titleString" value="CHANGE-ME"/>
<put name="topMenu" value="/tiles-components/topMenu.jsp"/>
<put name="leftMenu" value="/tiles-components/panel1.jsp"/>
<put name="body" value="CHANGE-ME"/>
<put name="footer" value="/tiles-components/footer.jsp"/>
</definition>
<!-- ======================================================= -->
<!-- Page definitions -->
<!-- ======================================================= -->
<!-- User Login page -->
<definition name="tile.userLogin" extends="rootLayout">
<put name="titleString" value="User Login"/>
<put name="body" value="/src/userLogin.jsp"/>
</definition>
<!-- User Main page -->
<definition name="tile.userMain" extends="rootLayout">
<put name="titleString" value="User Main"/>
<put name="body" value="/src/userMain.jsp"/>
</definition>
</tiles-definitions>

这样，我们就可以少写很多页，或重复代码，把模板拿来，只做不同的那一小部份。其实web应用中，项目间可重用的部分真是比较多，都抠出来，用的时候put进去，一定比较舒服。
还是纸上功夫，还没有亲手做一个完整地demo出来，但这真的是一个比较舒服的功能:)