@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
if (request.getParameter("logout") != null) {
request.getSession().invalidate();
response.sendRedirect("/books");
return;
}
request.setAttribute("books", BookStore.getBooks());
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/public/books.jsp");
dispatcher.forward(request, response);
}