public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
ctx.load("classpath:app-context.xml");
ctx.refresh();
UsersService usersService = ctx.getBean("usersService", UsersService.class);
PreferencesService preferenceService = ctx.getBean("preferencesService", PreferencesService.class);
BasicPasswordEncryptor passwordEncryptor = new BasicPasswordEncryptor();