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禁用spring data jpa中的自动更新

spring-data-jpa spring-boot mysql java

Naanavanalla · 技术社区 · 7 年前

我有JPA @Entity findBy 将由 JPA persistent state ,然后更新实体中的一些字段,然后将实体传递给验证。如果验证失败,则不更新;如果验证成功,则保留实体。

save() ,记录将始终更新,因为JPA检测到实体已更改并将其标记为更新。

如何避免这种行为?

我的实体类

@Entity
@Table( name = "user" )
@Data
@EqualsAndHashCode( of = { "id" } )
@ToString( of = { "id" } )
public class UserModel {

@Id
@GeneratedValue( strategy = GenerationType.AUTO )
@Column( name = "u_id" )
private Long id;

@Column( name = "u_first_name" )
private String firstName;

@Column( name = "u_last_name" )
private String lastName;

@Column( name = "u_email_id" )
private String emailId;

@Column( name = "u_password" )
private String password;

@Column( name = "u_mobile_number" )
private String mobileNumber;

@Column( name = "u_created_at" )
private Calendar createdAt;

@Column( name = "u_is_active" )
private Boolean isActive;
}