sessioncounter.java

基于asp.net的web开发的入门资料。

package com.oa.struts.util;

import javax.servlet.*; 
import javax.servlet.http.*; 

public class SessionCounter implements HttpSessionListener {
	private static int activeSessions = 0; 

	public void sessionCreated(HttpSessionEvent se) { 
	activeSessions++; 
	} 

	public void sessionDestroyed(HttpSessionEvent se) { 
	if(activeSessions > 0) 
	activeSessions--; 
	} 

	public static int getActiveSessions() { 
	return activeSessions; 
	} 

}