@CrossOrigin
 @RequestMapping(value = "/persoana/{id}/{nume}", method = RequestMethod.PUT)
 public List<Persoana> update(@PathVariable("id") int id, @PathVariable("nume") String nume) {
   for (Persoana p : this.persoane) {
     if (p.getId() == id) {
       p.setName(nume);
     }
   }
   return this.persoane;
 }