jjeong

package proto.session.servlet;

import java.io.IOException;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

/**

 * Servlet implementation class CreateSessionBinding

 */

public class CreateSessionBinding extends HttpServlet {

    private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public CreateSessionBinding() {

        super();

        // TODO Auto-generated constructor stub

    }

    /**

     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        // TODO Auto-generated method stub

        createSessionListener(request, response);

    }

    /**

     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        // TODO Auto-generated method stub

        createSessionListener(request, response);

    }

    private void createSessionListener (HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        HttpSession session = request.getSession(true);

        ServletContext context = getServletContext();

        // Add a CustomBindingListener

        if (session.isNew()) {

            session.setAttribute("session.id", new SessionBindingListener(context));

            context.log("new session.binding : " + session.getId());

        } else {

            context.log("already created session");

        }

    }

}

package proto.session.servlet;

import javax.servlet.ServletContext;

import javax.servlet.http.HttpSessionBindingEvent;

import javax.servlet.http.HttpSessionBindingListener;

public class SessionBindingListener implements HttpSessionBindingListener {

    private ServletContext context;

    public SessionBindingListener(ServletContext context) {

        this.context = context;

    }

    public void valueBound(HttpSessionBindingEvent event) {

      context.log("BOUND to " + event.getSession().getId());

    }

    public void valueUnbound(HttpSessionBindingEvent event) {

        context.log("UNBOUND from " + event.getSession().getId());

    }

}