servlet session(1)


package com.bjsxt;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;

//Session  

public class ShowSession extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String title = "Session Tracking Example";
		HttpSession session = request.getSession(true);
		String heading;
		// Use getAttribute instead of getValue in version 2.2.
		Integer accessCount = (Integer) session.getAttribute("accessCount");
		if (accessCount == null) {
			accessCount = new Integer(0);
			heading = "Welcome, Newcomer";
		} else {
			heading = "Welcome Back";
			accessCount = new Integer(accessCount.intValue() + 1);
		}
		// Use setAttribute instead of putValue in version 2.2.
		session.setAttribute("accessCount", accessCount);

		out.println("<html><head><title>Session  </title></head>"
				+ "<BODY BGCOLOR=\"#FDF5E6\">
" + "<H1 ALIGN=\"CENTER\">"
				+ heading + "</H1>
"
				+ "<H2>Information on Your Session:</H2>
"
				+ "<TABLE BORDER=1 ALIGN=\"CENTER\">
"
				+ "<TR BGCOLOR=\"#FFAD00\">
" + "  <TH>Info Type<TH>Value
"
				+ "<TR>
" + "  <TD>ID
" + "  <TD>" + session.getId() + "
"
				+ "<TR>
" + "  <TD>Creation Time
" + "  <TD>"
				+ new Date(session.getCreationTime()) + "
" + "<TR>
"
				+ "  <TD>Time of Last Access
" + "  <TD>"
				+ new Date(session.getLastAccessedTime()) + "
" + "<TR>
"
				+ "  <TD>Number of Previous Accesses
" + "  <TD>"
				+ accessCount + "
" + "</TABLE>
" + "</BODY></HTML>");

	}

	/** Handle GET and POST requests identically. */

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}
}
servlet session(1)

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