// ShowSession.java servlet -- example use of session methods and info // Chen Li, ICS 185 Winter 2005 // Minor updates (to use Java 5.0 features) by N. Jacobson for ICS185 Spring 2005 // Minor polishing by N. Jacobson for CS122B Spring 2007 import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.net.*; import java.util.*; public class ShowSessionInfo extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // Tell browser we have a text web page response.setContentType("text/html"); // Set up an output stream to the browser window PrintWriter out = response.getWriter(); // Request session info HttpSession session = request.getSession(); // Welcome new or returning user; update session count String heading; int accessCount; Object status = session.getAttribute("accessCount"); if (status == null) { heading = "Welcome"; accessCount = 0; } else { heading = "Welcome Back"; accessCount = (Integer)status + 1; } session.setAttribute("accessCount", accessCount); out.println("\n" + "

" + heading + "

\n" + "

Information on Your Session:

\n" + "\n" + "\n" + " \n" + " \n" + " \n" + " \n" + " "+ "
Info TypeValue\n" + "
ID\n" + " " + session.getId() + "\n" + "
Creation Time\n" + " " + new Date(session.getCreationTime()) + "\n" + "
Time of Last Access\n" + " " + new Date(session.getLastAccessedTime()) + "\n" + "
Number of Previous Accesses\n" + " " + accessCount + "\n" + "
\n"); out.println(""); } // Handle GET and POST requests identically public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }