package com.whyc.listener;
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import com.whyc.pojo.UserClient;
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import javax.servlet.annotation.WebListener;
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import javax.servlet.http.HttpSession;
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import javax.servlet.http.HttpSessionEvent;
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import javax.servlet.http.HttpSessionListener;
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import java.util.Map;
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import java.util.Timer;
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@WebListener
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public class Sessionlister implements HttpSessionListener {
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private Timer timer;
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public void sessionCreated(HttpSessionEvent event) {
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HttpSession session = event.getSession();
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}
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public void sessionDestroyed(HttpSessionEvent event) {
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//System.out.println("session被销毁");
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HttpSession session=event.getSession();
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String ip=(String)session.getAttribute("ip");
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Map<String, UserClient> map=(Map)session.getServletContext().getAttribute("users");
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if(map!=null){
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if(map.get(ip)!=null){
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map.remove(ip);
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}
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}
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}
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}
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