session menagement in servlets explaion briefly?

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session menagement in servlets explaion briefly?..

Answer / abhijit dutta

import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class SessionSample extends HttpServlet {
public void doGet (HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {

// Step 1: Get the Session object

boolean create = true;
HttpSession session = request.getSession(create);

// Step 2: Get the session data value

Integer ival = (Integer)
session.getAttribute ("sessiontest.counter");
if (ival == null) ival = new Integer (1);
else ival = new Integer (ival.intValue () +
1);
session.setAttribute ("sessiontest.counter",
ival);

// Step 3: Output the page

response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>Session Tracking
Test</title></head>");
out.println("<body>");
out.println("<h1>Session Tracking Test</h1>");
out.println ("You have hit this page " + ival + "
times" + "<br>");
out.println ("Your " + request.getHeader("Cookie"));
out.println("</body></html>");
}
}

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