Struts2.2.1配置sitemesh和freemarker

导入包：

struts2-core-2.2.1.jar

struts2-sitemesh-plugin-2.2.1.jar

sitemesh-2.4.2.jar

web.xml的配置

过滤器配置：
    <filter>  
        <filter-name>struts-prepare</filter-name>  
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter</filter-class>  
    </filter> 
    
	<filter>  
        <filter-name>sitemesh</filter-name>  
        <filter-class>com.opensymphony.sitemesh.webapp.SiteMeshFilter</filter-class>  
    </filter>
    
  	<filter>
    	<filter-name>struts2</filter-name>
    	<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  	</filter>
  	
	<filter-mapping>  
        <filter-name>struts-prepare</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>
    
  	<filter-mapping>
		<filter-name>sitemesh</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
  	
  	<filter-mapping>
    	<filter-name>struts2</filter-name>
    	<url-pattern>/*</url-pattern>
  	</filter-mapping>

监听器配置：
    <servlet>
        <servlet-name>sitemesh-freemarker</servlet-name>
        <servlet-class>org.apache.struts2.sitemesh.FreemarkerDecoratorServlet</servlet-class>
        <init-param>
            <param-name>default_encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>sitemesh-freemarker</servlet-name>
        <url-pattern>*.ftl</url-pattern>
    </servlet-mapping>
        <listener>
        <listener-class>org.apache.struts2.dispatcher.ng.listener.StrutsListener</listener-class>
    </listener>

sitemesh.xml

<sitemesh>
    <property name="decorators-file" value="/WEB-INF/decorators.xml"/>
    <excludes file="${decorators-file}"/>
    
    <page-parsers>
        <parser default="true" class="com.opensymphony.module.sitemesh.parser.HTMLPageParser"/>
        <parser content-type="text/html" class="com.opensymphony.module.sitemesh.parser.HTMLPageParser"/>
    </page-parsers>
	
    <decorator-mappers>
        <mapper class="com.opensymphony.module.sitemesh.mapper.ConfigDecoratorMapper">
            <param name="config" value="${decorators-file}"/> 
        </mapper>
    </decorator-mappers>
</sitemesh>

decorators.xml

<decorators defaultdir="/decorators">
    <excludes>
        <pattern>/index.html</pattern>
    </excludes>
    
    <decorator name="default" page="default.ftl">
        <pattern>/*</pattern> 	
    </decorator>
</decorators>