標籤：ring lang page color hive login 需要 org head
看項目時發現對應頁面下找不到側欄部分代碼,仔細觀察後發現頁面引入了sitemesh標籤，查了下資料原來是頁面用了sitemesh架構解！耦！了！
以前多個模組包含相同模組時總是include jsp檔案,沒感覺多麼麻煩,但看了sitemesh,感覺可以非常簡單!
sitemesh通過基於ServletFilter截取request和response，並給原始的頁面介入一定的裝飾，然後把結果返回給用戶端，被裝飾的頁面並不知道sitemesh的裝飾。
使用步驟如下:(sitemesh運行環境需要：servlet, JDK)
1,引入maven依賴
<dependency>
<groupId>opensymphony</groupId>
<artifactId>sitemesh</artifactId>
<version>2.4.2</version>
</dependency>
2,web.xml中添加過濾器：
<filter>
<filter-name>sitemesh</filter-name>
<filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>sitemesh</filter-name>
<servlet-name>springmvcServlet</servlet-name>
</filter-mapping>
<servlet>
<servlet-name>springmvcServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>***</param-name>
<param-value>***springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvcServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
3.在WEB-INF目錄下添加sitemesh設定檔decorators.xml
<?xml version="1.0" encoding="utf-8"?>
<decorators defaultdir="/WEB-INF/layout">
<!-- 此處用來定義不需要過濾的頁面 -->
<excludes>
<pattern>/login</pattern>
<pattern>/static/*</pattern>
<!--…… -->
</excludes>
<!-- 定義用來裝飾的頁面 -->
<decorator name="default" page="yanan7890.jsp">
<pattern>/*</pattern>
</decorator>
</decorators>
4.定義yanan7890.jsp頁面，根據放在decorators defaultdir配置，放在/WEB-INF/layout/目錄下
<%@page language="java" contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="sitemesh" uri="http://www.opensymphony.com/sitemesh/decorator"%>
<!DOCTYPE html>
<html>
<head>
<title>SiteMesh樣本-<sitemesh:title/></title> <!-- 會自動替換為被過濾頁面的title.sitemesh:title可選-->
<!--也可以引入需要複用的css和js-->
<link href="/***/.css" rel="stylesheet" type="text/css">
<script src="/***/.js"></script>
<sitemesh:head/><!--會把被過濾頁面head裡面的東西（除了title）放在這個地方-->
</head>
<body>
<%@ include file="/common/head.jsp"%>
<div>
<sitemesh:body/><!--被過濾的頁面body裡面的內容放在這裡。-->
</div>
<%@ include file="/common/foot.jsp"%>
</body>
</html>
如步驟3配置，如訪問/login和/static下的頁面不會裝飾，訪問其它頁面會按照yanan7890.jsp攔截裝飾
至此，大功告成！
參考文章：
1.http://cuisuqiang.iteye.com/blog/2066166
2.http://www.cnblogs.com/shanshouchen/archive/2012/08/10/2631819.html
3.http://baike.baidu.com/item/sitemesh
sitemesh網頁布局
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