/** 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). * P> * Taken from Core Servlets and JavaServer Pages * from Prentice Hall and Sun Microsystems Press, * http://www.coreservlets.com/. * copy; 2000 Marty Hall; may be freely used or adapted. */
public class SetCookies extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { for(int i=0; i3; 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 title = "Setting Cookies"; out.println (ServletUtilities.headWithTitle(title) + "BODY BGCOLOR=\&;#FDF5E6\&;>\n" + "H1 ALIGN=\&;CENTER\&;>" + title + "/H1>\n" + "There are six cookies associated with this page.\n" + "To see them, visit the\n" + "A HREF=\&;/servlet/coreservlets.ShowCookies\&;>\n" + "CODE>ShowCookies/CODE> servlet/A>.\n" + "P>\n" + "Three of the cookies are associated only with the\n" + "current session, while three are persistent.\n" + "Quit the browser, restart, and return to the\n" + "CODE>ShowCookies/CODE> servlet to verify that\n" + "the three long-lived ones persist across sessions.\n" + "/BODY>/HTML>"); } }
