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SiteMesh2简单研究笔记

 
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一.导入依赖

导入在中央库中的依赖方法如下

<dependency>
    <groupId>opensymphony</groupId>
    <artifactId>sitemesh</artifactId>
    <version>2.4.2</version>
    <scope>runtime</scope>
</dependency>

 

 

最新版的SiteMesh2

 

<repositories>
    <repository>
        <id>SiteMesh</id>
        <name>SiteMesh Repository</name>
        <url>http://maven-us.nuxeo.org/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>opensymphony</groupId>
        <artifactId>sitemesh</artifactId>
        <version>2.5-atlassian-9</version>
    </dependency>
</dependencies>

 

 

二.web.xml中添加Filter

在web.xml中添加下面这个filter

<filter>
    <filter-name>sitemesh</filter-name>
    <filter-class>com.opensymphony.sitemesh.webapp.SiteMeshFilter</filter-class>
</filter>

<filter-mapping>
    <filter-name>sitemesh</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

 该filter可以放在其它filter后面，比如org.springframework.web.filter.CharacterEncodingFilter

 

三.装饰器decorator

编写装饰器JSP页面，比如

<%@ taglib uri="http://www.opensymphony.com/sitemesh/decorator" prefix="decorator" %>
<html>
<head>
    <title>My Site - <decorator:title default="Welcome!" /></title>
    <decorator:head />
</head>
<body>
<decorator:body />
</body>
</html>

注意<decorator:title default="Welcome!" /> <decorator:head /> <decorator:body />

 

四.配置文件decorators.xml

通过配置文件通知

<?xml version="1.0" encoding="UTF-8"?>
<decorators defaultdir="/WEB-INF/layouts">
    <!-- 不进行装饰的路径 -->
    <excludes>
        <pattern>/static/*</pattern>
        <pattern>/api/*</pattern>
    </excludes>

    <!-- 默认装饰器 -->
    <decorator name="default" page="decorator.jsp">
        <pattern>/*</pattern>
    </decorator>

    <decorator name="anotherdecorator" page="decorator2.jsp">
        <pattern>/site*</pattern>
    </decorator>

    <decorator name="htmldecorator" page="html.jsp">
        <pattern>*.html</pattern>
        <pattern>*.htm</pattern>
    </decorator>

    <decorator name="none">
        <!-- These files will not get decorated. -->
        <pattern>/none/*</pattern>
    </decorator>

</decorators>

 

1.理论上SiteMesh只会搞那些MIME type为html的页面，但在配置里先exclude掉一些静态内容和Restful API的路径会更省心；

2.根据路径匹配来选用装饰器，并按照从左到右匹配的方式，*号的级别最低，比如例子中(1) /site* 或 *.html 均匹配不上时才会使用 default装饰器 ; (2)/site.html 会使用anotherdecorator装饰器；

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| JSP整理(三) 常用JSLT
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