1.简单介绍
Sitemesh 是一个网页布局和修饰的框架，基于 Servlet 中的 Filter，类似于 ASP.NET 中的‘母版页’技术。参考：百度百科.
官网：http://wiki.sitemesh.org/wiki/display/sitemesh/Home 。
2.sitemesh3 相关jar包下载
GitHub 地址：https://github.com/sitemesh/sitemesh3
3.sitemesh3配置文件进行配置(对指定访问请求的进行修饰)
原码如下：
<?xml version="1.0" encoding="UTF-8"?><sitemesh>
<!-- 指明满足“/*”的页面，将被“/WEB-INF/views/decorators/decorator.html”所装饰 -->
<mapping path="/*" decorator="/platform/decorators/decorator.jsp"/>
<!-- 指明满足“/exclude.jsp*”的页面，将被排除，不被装饰 -->
<mapping path="/exclude.jsp" exclue="true"/>
</sitemesh>
4.web.xml中对sitemesh3进行配置(过滤器)
原码：
<!-- sitemesh 框架渲染器 -->
<filter>
<filter-name>sitemesh</filter-name>
<filter-class>org.sitemesh.config.ConfigurableSiteMeshFilter</filter-class>
<!-- <filter-class>com.zhjy.web.sitemesh.OpsConfigurableSiteMeshFilter</filter-class> -->
</filter>
<filter-mapping>
<filter-name>sitemesh</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<filter>
<filter-name>sitemesh</filter-name>
<filter-class>org.sitemesh.config.ConfigurableSiteMeshFilter</filter-class>
<!-- <filter-class>com.zhjy.web.sitemesh.OpsConfigurableSiteMeshFilter</filter-class> -->
</filter>
<filter-mapping>
<filter-name>sitemesh</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
5.准备两个界面:修饰界面(decorator.jsp)、被修饰界面(demo.jsp即需要展示的界面)
decorator.jsp如下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><sitemesh:write property='title'/></title>
<sitemesh:write property='head' />
</head>
<body>
<header>header</header>
<hr />
demo.html的title将被填充到这儿：
<sitemesh:write property='title' /><br />
demo.html的body将被填充到这儿：
<sitemesh:write property='body' />
<hr />
<footer>footer</footer>
</body>
</html>
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><sitemesh:write property='title'/></title>
<sitemesh:write property='head' />
</head>
<body>
<header>header</header>
<hr />
demo.html的title将被填充到这儿：
<sitemesh:write property='title' /><br />
demo.html的body将被填充到这儿：
<sitemesh:write property='body' />
<hr />
<footer>footer</footer>
</body>
</html>
demo.jsp如下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>内容页的标题</title>
</head>
<body>
内容页的body部分
</body>
</html>
pageEncoding="UTF-8"%>
<%@ page language="java" import="java.util.*"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>内容页的标题</title>
</head>
<body>
内容页的body部分
</body>
</html>