ServletContextListener

   web.xml:

<listener>
        <listener-class>com.common.ServletContextListeners</listener-class>
    </listener>

java类:

public class ServletContextListeners implements ServletContextListener{

    @Override
    public void contextDestroyed(ServletContextEvent arg0) {
        // TODO Auto-generated method stub
       
    }

    @Override
    public void contextInitialized(ServletContextEvent se) {
        // TODO Auto-generated method stub
         WebApplicationContext wa =   WebApplicationContextUtils.getWebApplicationContext(se.getServletContext());    
         SPowerMarkService sPowerMarkService = (SPowerMarkService )wa.getBean("sPowerMarkService");  
        System.out.println(sPowerMarkService.findByParent(1, 0).size());
    }

}