Struts模块化编程教程(三)

4、模块定义 

通过上面对STRUTS的模块化机制的讲解，我们现在可以开始实现我们的模块化例子程序了。 

4.1 Actionservlet参数 

我们在struts的web.xml中定义模块。下面的代码定义了三个模块：缺省模块，approval和registration模块，前缀分别是””,/approval和/registration。 

<web-app>
    <servlet>
        <servlet-name>action</servlet-name>
        <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
        <init-param>
            <param-name>config</param-name>
            <param-value>/WEB-INF/struts-config.xml</param-value>
                    </init-param>
        <init-param>
            <param-name>config/approval</param-name>
            <param-value>/WEB-INF/struts-config-approval.xml</param-value>
                    </init-param>
        <init-param>
            <param-name>config/registration</param-name>
            <param-value>/WEB-INF/struts-config-registration.xml</param-value>
        </init-param>
     </init-param>
         <load-on-startup>1</load-on-startup>
            </servlet>    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>*.do</url-pattern>
            </servlet-mapping>
    </web-app>
 


这样在初始化actionservlet的过程中，servletcontext的属性中就会有这样的属性键/值关系：