SessionListener失败，退出

配置如下：

web.xml：

 <listener>
    <listener-class>cn.edu.hbcf.common.listener.SessionListener</listener-class>
  </listener>

java类：

SessionListener.java

package cn.edu.hbcf.common.listener;

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

import cn.edu.hbcf.common.constants.WebConstants;
import cn.edu.hbcf.common.springmvc.SpringContextHolder;
import cn.edu.hbcf.privilege.dao.BaseUserLogMapper;
import cn.edu.hbcf.privilege.pojo.BaseUserLog;
import cn.edu.hbcf.privilege.pojo.BaseUsers;

public class SessionListener implements HttpSessionListener {

     @Override  
     public void sessionCreated(HttpSessionEvent arg0) {}  
     @Override  
     public void sessionDestroyed(HttpSessionEvent arg0) { 
         HttpSession session = arg0.getSession();
         BaseUsers user = (BaseUsers)session.getAttribute(WebConstants.CURRENT_USER);
         String name=user.getAccount();   
         if(name!=null && name.length()>0){//session失效时候移除记录    
             if(SessionAttributeListener.sessionMap.containsKey(name)){
                 BaseUserLogMapper baseUserLogMapper = SpringContextHolder.getBean("baseUserLogMapper");
                 BaseUserLog log = new BaseUserLog();
                 log.setLogType(2);
                 log.setUser(user);
                 log.setDescription("退出成功");
                 baseUserLogMapper.insert(log);
                 SessionAttributeListener.sessionMap.remove(name);   
             }
        }   
     }

}