struts2监听器session失效时的操作_JAVA_编程开发_程序员俱乐部

public class LogoutListener implements HttpSessionAttributeListener {

private static final Log log = LogFactory.getLog(LogoutListener.class);

public void attributeAdded(HttpSessionBindingEvent event) {

log.info("add attribute to session");

System.out.println("add attribute to session");

}

?

public void attributeRemoved(HttpSessionBindingEvent event) {

? ?log.info("remove attribute from session");

? ?System.out.println("remove attribute from session");

? ?if (Constants.USER_KEY.equals(event.getName())) {

? ? ? User user = (User) event.getValue();

? if (user != null) {

? ApplicationContext ctx = WebApplicationContextUtils

? ? ? ? ?.getWebApplicationContext(event.getSession()

? ? ? ? .getServletContext());

? ? ? UserService userService = (UserService) ctx

.getBean("userServiceImpl");

//对用户进行操作，比如调用service的方法修改用户在线状态为不在线状态

}

}

}

}

public void attributeReplaced(HttpSessionBindingEvent event) {

/*log.info("replace attribute from session");

System.out.println("replace attribute from session");*/

}

}