logoffaction.java

首先确保MySQL4.0数据库已经正确安装

package edu.jnestore.action;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import edu.jnestore.common.Constants;
import edu.jnestore.common.User;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
 * 处理用户退出系统的请求
 */
public class LogoffAction extends Action
{
  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
  {
     Log bizlog=LogFactory.getLog("Businesslog"); 
      
    HttpSession session = httpServletRequest.getSession();
    User user = (User)session.getAttribute(Constants.USER_KEY);    
    bizlog.info(user.getUserID()+" logoff");
    session.removeAttribute(Constants.USER_KEY);
    session.invalidate();
    return actionMapping.findForward("home");
  }
}