@Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { HttpSession session = req.getSession(); if ((session.getAttribute("user_a") == null)) { Cookie cookie = ServletUtilities.getCookie(req, "remember"); if (cookie != null) { // достаем user'а из БД с таким же cookie try { User user = UserRepository.getUserByCookie(cookie); if (user != null) { // меняем значение cookie для безопасности Cookie newCookie = new Cookie("remember", SecurityService.genRndHash(12)); newCookie.setMaxAge(60 * 60 * 48); UserRepository.updateUserCookie(user, newCookie); resp.addCookie(newCookie); session.setAttribute("user_a", user); resp.sendRedirect("/profile"); return; } } catch (SQLException e) { e.printStackTrace(); } } resp.sendRedirect("/login"); } else { req.setAttribute("user", session.getAttribute("user_a")); getServletContext().getRequestDispatcher("/WEB-INF/views/profile.jsp").forward(req, resp); } }