How to autogenerate created or modified timestamp field?

Question

My entity class:

@Entity
@Table(name = \"user\")
public class User implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
           


        

Answer 1

import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;

.
.
.

@CreationTimestamp
private Date created;

@UpdateTimestamp
private Date modified;