来自父 class 的日期字段的更新在 Spring Data Jpa 中不起作用

Update of Date fields from Parent class not working in Spring Data Jpa

我正在使用 Spring Boot 和 Spring Data JPA,想更新 JPA 更新语句中的 LastUpdatedDateLastModifiedBy 字段。假设 Employee 是我的实体 class 扩展 AbstractBaseEntity class.

@MappedSuperclass
@EntityListeners(AuditingEntityListener.class)
@Data
public abstract class AbstractBaseEntity {

    @CreatedBy
    @JsonIgnore
    @Column(name = "CRTE_USER_ID")
    protected String createdByUser = "TEST_USER";

    @CreatedDate
    @JsonIgnore
    @Column(name = "CRTE_DT", updatable = false)
    protected Date createdDate = new Date();

    @LastModifiedBy
    @JsonIgnore
    @Column(name = "UPDT_USER_ID")
    protected String lastUpdatedByUser = "TEST_USER";

    @LastModifiedDate
    @JsonIgnore
    @Column(name = "UPDT_DT")
    protected Date lastUpdatedOn = new Date();

    @Version
    @JsonIgnore
    @Column(name = "VER_NUM")
    protected Integer versionNumber = 1;
}

另一个class

public class Employee extends AbstractBaseEntity{
   ...
   ...
   ...    
}

以下查询未更新任何日期。我们该如何解决?

@Modifying(clearAutomatically = true)
@Transactional
@Query("UPDATE Employee p SET p.status =:status, p.lastUpdatedOn = :lastUpdatedOn WHERE p.srcProjectKeyId = (:id)")
int updatestatus(@Param("status") String status, @Param("id") Long id, @Param("lastUpdatedOn") Date lastUpdatedOn);

为了make auditing work at all,请确保@EnableJpaAuditing注解添加到@Configuration class.

AuditingEntityListener 方法在 @PrePersist@PreUpdate 阶段被调用。 AFAIK 只有在您直接操作实体时才有效。如果您使用 @Query 语句,它将不起作用。

更新语句必须手动执行,例如:

UPDATE Employee p SET p.status =:status, p.lastUpdatedOn = 
:lastUpdatedOn, p.lastUpdatedBy = :lastUpdatedBy WHERE 
p.srcProjectKeyId = (:id)

要获取当前日期,请使用:

Date now = new Date();
// or
long now = System.currentTimeMillis();

获取当前用户(a.k.a.principal)使用:

Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
String currentPrincipalName = authentication.getName();

这里是关于缓存失效问题的更长时间的讨论:

Spring Data JPA Update @Query not updating?