// File: CookieTest.java import java.io.*; import javax.servlet.*; import javax.servlet.http.*; /** Creates a table of the cookies associated with * the current page. Also sets six cookies: three * that apply only to the current session * (regardless of how long that session lasts) * and three that persist for an hour (regardless * of whether the browser is restarted). *

* Taken from Core Servlets and JavaServer Pages 2nd Edition * from Prentice Hall and Sun Microsystems Press, * http://www.coreservlets.com/. * © 2003 Marty Hall; may be freely used or adapted. */ public class CookieTest extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { for(int i=0; i<3; i++) { // Default maxAge is -1, indicating cookie // applies only to current browsing session. Cookie cookie = new Cookie("Session-Cookie-" + i, "Cookie-Value-S" + i); response.addCookie(cookie); cookie = new Cookie("Persistent-Cookie-" + i, "Cookie-Value-P" + i); // Cookie is valid for an hour, regardless of whether // user quits browser, reboots computer, or whatever. cookie.setMaxAge(3600); response.addCookie(cookie); } response.setContentType("text/html"); PrintWriter out = response.getWriter(); String docType = "\n"; String title = "Active Cookies"; out.println(docType + "\n" + "" + title + "\n" + "\n" + "

" + title + "

\n" + "\n" + "\n" + "

Cookie Name\n" + "	Cookie Value"); Cookie[] cookies = request.getCookies(); if (cookies == null) { out.println("
No cookies"); } else { Cookie cookie; for(int i=0; i\n" + "		" + cookie.getName() + "\n" + "	" + cookie.getValue()); } } out.println("

"); } }