How to auto insert Current DATE in SQL with Java / Hibernate

I need to add automatically the current date into my Database when I create a new OperantionBank. I'm using Hibernate. Thanks

import java.io.Serializable;

import java.sql.Date;

import javax.persistence.*;

import org.hibernate.annotations.Generated;

import org.hibernate.annotations.GenerationTime;



@Entity

public class OperationBank implements Serializable {

private static final long serialVersionUID = 1L;



@Id

@GeneratedValue(strategy = GenerationType.AUTO)

private Long id;



private String wordring;



private Double amount;



@Generated(GenerationTime.ALWAYS)

@Temporal(javax.persistence.TemporalType.DATE)

private Date dateoperation = new java.sql.Date(new java.util.Date().getTime());



@OneToOne

private Account account;