ServletContextListener监听器监听 ServletContext对象的两个步骤 一

1、编写一个类去实现 ServletContextListener

publib class MyServletContextListenerImpl implements ServletContextListener 
{ 
   @Override 
   public void contextInitialized(ServletContextEvent sce) 
   { 
      System.out.println("ServletContext 对象被创建了"); 
   }
   
   @Override 
   public void contextDestroyed(ServletContextEvent sce) 
   { 
      System.out.println("ServletContext 对象被销毁了"); 
   } 
}

2、到 web.xml 中去配置监听器

 

<listener> 
     <listener-class>
         com.atguigu.listener.MyServletContextListenerImpl
     </listener-class>
 </listener>