java代码:
public class InitListener implements ServletContextListener {
public void contextInitialized(ServletContextEvent sce) {
// 获取容器与相关的Service对象
ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(sce.getServletContext());
PrivilegeService privilegeService = (PrivilegeService) ac.getBean("privilegeServiceImpl");
// 准备数据:topPrivilegeList
List<Privilege> topPrivilegeList = privilegeService.findTopList();
sce.getServletContext().setAttribute("topPrivilegeList", topPrivilegeList);
System.out.println("------------> 已准备数据topPrivilegeList <------------");
// 准备数据:allPrivilegeUrls
Collection<String> allPrivilegeUrls = privilegeService.getAllPrivilegeUrls();
sce.getServletContext().setAttribute("allPrivilegeUrls", allPrivilegeUrls);
System.out.println("------------> 已准备数据allPrivilegeUrls <------------");
}
public void contextDestroyed(ServletContextEvent arg0) {
}
}
web.xml中的配置如下:
<!-- 配置Spring的用于初始化容器对象的监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
<!--
用于做初始化工作的监听器,一定要配置到Spring的ContextLoaderListener之后,因为要用到Spring的容器对象
-->
<listener>
<listener-class>cn.util.InitListener</listener-class>
</listener>
在jsp中获取数据:
<s:iterator value="#application.topPrivilegeList">