sessionevent.java

演示网站Portal单点登陆SSO的简单使用

import java.util.Timer;

import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;

public class SessionEvent implements HttpSessionListener {
	// private Timer timer;

	public void sessionCreated(HttpSessionEvent event) {
		HttpSession session = event.getSession();
		// Integer timeout = (Integer) session.getAttribute("Timeout");
		String sessionId = session.getId();
		System.out.println(sessionId);
		System.out.println("In sessionCreated......");
	}

	public void sessionDestroyed(HttpSessionEvent event) {
		//session 销毁前将定时任务（保持用户信息的定时SSO消息）取消
		HttpSession session = event.getSession();
		String sessionId = session.getId();
		System.out.println(sessionId);
		System.out.println("In sessionDestroyed......");
		Timer timer = (Timer) session.getAttribute("Timeout");
		if (timer != null) {
			timer.cancel();
		}
		session.removeAttribute("Timeout");
	}
}