HttpServletRequest
class provides a method 'changeSessionId()' with this you can change
the session.
String
changeSessionId()
Change
the session id of the current session associated with this request
and return the new session id.
import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.*; import javax.servlet.annotation.*; @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"); } req.changeSessionId(); 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("</h1></body></html>"); } } }
Refresh
the page, then you can see the result.
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