res.setContentType("text/plain");
PrintWriter out = res.getWriter();
// Get the session
HttpSession session = req.getSession();
// Does the session indicate this user already logged in?
Object done = session.getAttribute("logon.isDone"); // marker object
if (done == null) {
// No logon.isDone means she hasn't logged in.
// Save the request URL as the true target and redirect to the login page.
session.setAttribute("login.target",
HttpUtils.getRequestURL(req).toString());
res.sendRedirect("/login.html");
return;
}
// If we get here, the user has logged in and can see the goods
out.println("Unpublished O'Reilly book manuscripts await you!");
