Java by API/javax.servlet.http/HttpSessionBindingEvent

HttpSessionBindingEvent: getName()

   <source lang="java">

import java.io.IOException; import java.io.PrintWriter; import java.util.Date; 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; import javax.servlet.http.HttpSessionBindingEvent; import javax.servlet.http.HttpSessionBindingListener; public class SessionBindings extends HttpServlet {

 public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
     IOException {
   res.setContentType("text/plain");
   PrintWriter out = res.getWriter();
   // Get the current session object, create one if necessary
   HttpSession session = req.getSession();
   // Add a CustomBindingListener
   session.setAttribute("bindings.listener", new CustomBindingListener(getServletContext()));
   out.println("This page intentionally left blank");
 }

} class CustomBindingListener implements HttpSessionBindingListener {

 ServletContext context;
 public CustomBindingListener(ServletContext context) {
   this.context = context;
 }
 public void valueBound(HttpSessionBindingEvent event) {
   context.log("[" + new Date() + "] BOUND as " + event.getName() + " to "
       + event.getSession().getId());
 }
 public void valueUnbound(HttpSessionBindingEvent event) {
   context.log("[" + new Date() + "] UNBOUND as " + event.getName() + " from "
       + event.getSession().getId());
 }

}

      </source>
   
  
 
  

HttpSessionBindingEvent: getSession()

   <source lang="java">

import java.io.IOException; import java.io.PrintWriter; import java.util.Date; 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; import javax.servlet.http.HttpSessionBindingEvent; import javax.servlet.http.HttpSessionBindingListener; public class SessionBindings extends HttpServlet {

 public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
     IOException {
   res.setContentType("text/plain");
   PrintWriter out = res.getWriter();
   // Get the current session object, create one if necessary
   HttpSession session = req.getSession();
   // Add a CustomBindingListener
   session.setAttribute("bindings.listener", new CustomBindingListener(getServletContext()));
   out.println("This page intentionally left blank");
 }

} class CustomBindingListener implements HttpSessionBindingListener {

 ServletContext context;
 public CustomBindingListener(ServletContext context) {
   this.context = context;
 }
 public void valueBound(HttpSessionBindingEvent event) {
   context.log("[" + new Date() + "] BOUND as " + event.getName() + " to "
       + event.getSession().getId());
 }
 public void valueUnbound(HttpSessionBindingEvent event) {
   context.log("[" + new Date() + "] UNBOUND as " + event.getName() + " from "
       + event.getSession().getId());
 }

}

      </source>