在 Spring Boot Hibernate for Postgres 中的特定时区中设置 UpdatedTimeStamp

Question

I have an entity that stores a last updated date like this

@Entity
@Table(name = "counter")
public class Count {
    @Id
    @Column(name = "uniq_id")
    String uniqId;

    @Column(name = "amount")
    int amount;

    @Column(name = "points")
    double points;

    @Column(name = "handshake")
    boolean handshake;

    @UpdateTimestamp
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "updated_date")
    Date timestamp;

    //getter setters
}

This part

@UpdateTimestamp
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "updated_date")
Date timestamp;

means that whenever this entity is used, the timestamp is auto updated and persisted on the database.

Now my problem is, how do I set this timestamp automatically on a specific TimeZone? I am using Postgresql. Any help would be appreciated.

Answer 1

Avoid using Date , JPA supports the java-8 date classes, so use OffsetDateTime to map TIMESTAMP WITH TIME ZONE

Mapping Java 8 Date Types

@Column(name = "updated_date", columnDefinition = "TIMESTAMP WITH TIME ZONE")
 private OffsetDateTime offsetDateTime;

For TIMESTAMP WITHOUT TIME ZONE you can use LocalDateTime

@Column(name = "updated_date", columnDefinition = "TIMESTAMP")
private LocalDateTime localDateTime;