import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
/**
* The SessionInfoServlet demonstrates the session management
* mechanisms built into the servlet API.
*
* @author Dustin R. Callaway
* @version 1.0, 06/06/98
*/
public class SessionInfoServlet extends HttpServlet
{
/**
* init method is called when servlet is first loaded.
*/
public void init(ServletConfig config) throws ServletException
{
super.init(config); //pass ServletConfig to parent
}
/**
* service method builds an HTML document containing session
* information and returns it to the client.
*/
public void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException
{
//get current session or, if necessary, create a new one
HttpSession mySession = request.getSession(true);
//MIME type to return is HTML
response.setContentType("text/html");
//get a handle to the output stream
PrintWriter out = response.getWriter();
//generate HTML document
out.println("");
out.println("");
out.println("Session Info Servlet");
out.println("");
out.println("");
out.println("Session Information
");
out.println("New Session: " + mySession.isNew());
out.println("
Session ID: " + mySession.getId());
out.println("
Session ID fra request objektet: " + request.getRequestedSessionId());
out.println("
Session Creation Time: " +
mySession.getCreationTime());
out.println("
Session Last Accessed Time: " +
mySession.getLastAccessedTime());
out.println("Request Information
");
out.println("Session ID from Request: " +
request.getRequestedSessionId());
out.println("
Session ID via Cookie: " +
request.isRequestedSessionIdFromCookie());
out.println("
Session ID via rewritten URL: " +
request.isRequestedSessionIdFromUrl());
out.println("
Valid Session ID: " +
request.isRequestedSessionIdValid());
out.println("");
out.close(); //close output stream
}
/**
* getServletInfo returns a brief description of this servlet
*/
public String getServletInfo()
{
return "Servlet returns session information.";
}
}