@RequestMapping(value="/add_u", method = RequestMethod.POST)
	public ModelAndView add_u(HttpServletRequest request, ModelMap model) {

		String Username = request.getParameter("Username");
		String password = request.getParameter("password");
		String nombre = request.getParameter("nombre");
		String ap = request.getParameter("ap");
		String am = request.getParameter("am");
		String ci = request.getParameter("ci");
		String f = request.getParameter("f");
		String sexo = request.getParameter("sexo");
		per=new Persona(Username,nombre,ap,am,ci,f,sexo);
		per.adicionar();
		
		u=new Usuario(Username,password);
		u.adicionar_U();
		
        return new ModelAndView("redirect:thank");
        
	}