@Controller
@RequestMapping("/app")
public class AutenticatedController {

    @ModelAttribute("username")
    public String username(){
        SecurityUtils securityUtils=new SecurityUtils();
        String username=securityUtils.getUsername();
        return username;
    }
    ...
    
}


@Controller
@RequestMapping("/app")
public class AutenticatedController {

    @ModelAttribute
    public void addAttributes(ModelMap model) {
        SecurityUtils securityUtils=new SecurityUtils();
        String username=securityUtils.getUsername();
        model.addAttribute("username", username);
        model.addAttribute("breadcrumb_list","<i class=\"far fa-list-alt\"></i>&nbsp;Utenti");
        model.addAttribute("breadcrumb_detail","<i class=\"fas fa-file-invoice\"></i>&nbsp;Utente");
        model.addAttribute("title_list","Utenti");
        model.addAttribute("title_detail","Utente");
        model.addAttribute("model_name",User.class.getSimpleName().toLowerCase());
        model.addAttribute("response_message",responseMessage);
    }
	...

}