public
boolean isRequestedSessionIdValid()
Checks
whether the requested session ID is still valid. If the client did
not specify any session ID, this method returns false.
import java.io.*; import javax.servlet.*; import javax.servlet.annotation.WebServlet; import javax.servlet.http.*; @WebServlet(urlPatterns = {"/DisplaySession"}) public class DisplaySession extends HttpServlet { @Override public void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException{ try(PrintWriter out = res.getWriter()){ StringBuilder msg = new StringBuilder(); HttpSession mySession = req.getSession(); Integer accessCount = (Integer)mySession.getAttribute("count"); if(accessCount == null){ msg.append("Welcome"); mySession.setAttribute("count", 0); accessCount = 0; } else{ accessCount = accessCount + 1; mySession.setAttribute("count", accessCount); msg.append("Welcome Back"); } String sessionId = mySession.getId(); long createdTime = mySession.getCreationTime(); long lastAccessedTime = mySession.getLastAccessedTime(); out.println("<html><head><title>Your Session Data</title></head>"); out.println("<body><h1>" + msg); out.println("Your visit count " + accessCount +"<br />"); out.println("Session Id :" + sessionId +"<br />"); out.println("Created Time :" + createdTime +"<br />"); out.println("Last Accessed Time :" + lastAccessedTime +"<br />"); out.println("Is session comes as cookie :" + req.isRequestedSessionIdFromCookie()+"<br />"); out.println("Is session comes as part of URL :" + req.isRequestedSessionIdFromURL() +"<br />"); out.println("Is session is still valid :" + req.isRequestedSessionIdValid()+"<br />"); out.println("</h1></body></html>"); } } }
Output
Refresh the window.
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