小编sam*_*tk8的帖子

我正在使用JSF + JPA我没有修复此错误:

javax.validation.ConstraintViolationException:在回调事件上执行自动Bean验证时违反了Bean验证约束:'prePersist'.有关详细信息,请参阅嵌入式ConstraintViolations.

@ManagedBean(name = "clientCon")
public class ClientController {

    @PostConstruct
    public void init() {
        System.out.println("Salam");
        clients = new Clients();
    }

    private EntityManagerFactory emf = null;

    public ClientController() {
        emf = Persistence.createEntityManagerFactory("ClinicProjectPU");
    }

    private List<Clients> clientList;
    private Clients clients;

    public EntityManager getEntityManager() {
        return emf.createEntityManager();
    }

    public Clients getClients() {
        return clients;
    }

    public void setClients(Clients clients) {
        this.clients = clients;
    }

    public List<Clients> getClientList() {
        this.clientList = getEntityManager().createNamedQuery("Clients.findAll").getResultList();
        return clientList;
    }

    public void createClient() {
        EntityManager em = …