java - Open Xava：如何在 Open Xava 中插入时设置 current_timestamp？

Question

我正在尝试在用户进行创建时将 current_timestamp 插入数据库列“CREATION_DATE”，并在用户进行编辑时将 current_timestamp 设置为数据库列“MODIFY_DATE”，但我失败了。代码：

@Column(name = "CREATEDATE", columnDefinition="TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON INSERT CURRENT_TIMESTAMP")
@Temporal(TemporalType.TIMESTAMP)
private Date createDate;

@Column(name = "MODIFYDATE", columnDefinition="TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP")
@Temporal(TemporalType.TIMESTAMP)
private Date modifyDate;

Answer 1

向您的实体添加两个回调方法：

@PrePersist
private void setCreateDate() {
    createDate = new Date();
}

@PreUpdate
private void updateModifyDate() {
    modifyDate = new Date();
}