@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String id = req.getParameter("id");
String name = req.getParameter("name");
String url = req.getParameter("url");
Person person = new Person();
person.setId(id);
person.setName(name);
person.setUrl(url);
personService.addPerson(person );
resp.sendRedirect("/personui");
}