public class MyServletRequestListener implements ServletRequestListener {

    public void requestDestroyed(ServletRequestEvent sre) {

HttpServletRequest request = (HttpServletRequest)sre.getServletRequest();

       System.out.println("请求对象"+request.getRequestURI() + "被销毁了");

    }

    public void requestInitialized(ServletRequestEvent sre) {

HttpServletRequest request = (HttpServletRequest)sre.getServletRequest();

       System.out.println("请求对象"+request.getRequestURI() + "被创建了");

    }

}