Go语言视频零基础入门到精通

goaway

在web.xml中修改
<listener>
   <listener-class>org.eleaf.qsls.server.ActiveUserListener</listener-class>
</listener>

ActiveUserListener.java:
package org.eleaf.qsls.server;

import java.util.*;
import javax.Servlet.http.*;
import org.eleaf.qsls.bbs.*;


public class ActiveUserListener implements HttpSessionListener {
    private static int sessionCount = 0;
    private static Map sessionMaps = new HashMap(); //存放session的集合类

   public void sessionCreated(HttpSessionEvent arg0) {
        HttpSession session = arg0.getSession();
        String sessionId = session.getId();
        System.out.println("Create a session:" + sessionId);
        sessionMaps.put(sessionId, session);
        
        sessionCount++;
}

   public void sessionDestroyed(HttpSessionEvent arg0) {
        sessionCount--;
       String sessionId = arg0.getSession().getId();
        sessionMaps.remove(sessionId);//利用会话ID标示特定会话
        System.out.println("Destroy a session:" + sessionId);
}
public static int getSessionCount() {
   return sessionCount;
    }
    public static Map getSessionMaps() {
    return sessionMaps;
    }
}

zj905

顶一个！