onlinelistener.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.user.online;

import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionBindingEvent;

import com.yhbbs.bbs.biz.BbsStatBiz;
import com.yhbbs.user.bean.UserSessionIm;
import com.yhbbs.user.biz.OnlineBizIm;
import com.yhbbs.utils.Constants;

/**
 * <p>Title:论坛Session监听器</p>
 * <li> 论坛Session监听器 <br>
 * <br><b>WebSite: www.yyhweb.com</b>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YHBBS-2.0
 */
public class OnlineListener implements HttpSessionAttributeListener {

	public void attributeAdded(HttpSessionBindingEvent hsbe) {
	
		if(hsbe.getName().equals(Constants.bbsuser)||hsbe.getName().equals(Constants.bbsguest)){
			UserSessionIm onlineuser = (UserSessionIm)hsbe.getValue();
			OnlineBizIm.addUser(onlineuser);
		}else{
			 BbsStatBiz.theSameDay();
		}
	}

	public void attributeRemoved(HttpSessionBindingEvent hsbe) {
		
		if(hsbe.getName().equals(Constants.bbsuser)||hsbe.getName().equals(Constants.bbsguest)){
			UserSessionIm onlineuser = (UserSessionIm)hsbe.getValue();
			OnlineBizIm.removeUser(onlineuser);
		}
	}

	public void attributeReplaced(HttpSessionBindingEvent hsbe) {
		
	}
}