使用JPA数据CrudRepositories自动生成创建日期和上次修改日期 [英] Auto generating create date and last modify date using JPA data CrudRepositories

问题描述

我试图迁移我的应用程序以使用实体生成模式，而不是具有预先存在的模式。到目前为止，create和lastModify日期由DB（MySql）更新，但现在我想从JPA生成模式，我必须以编程方式执行此操作。

之前，我总是使用@PrePersit和@PreUpdate来做这个没有任何问题，但现在它不工作，我认为这是因为我使用弹簧数据的CrudRepository接口为我的DAO，所以我不知道发生了什么实体经理在这里......

我做了一些调查，并且发现了一些关于春季审计的事情，但是我无法使其发挥作用。此刻我正在尝试@Created和@LastModified注释，但它们不起作用。这是我现在拥有的：我的可抽象性：

  @MappedSuperclass 
 @Data 
 @ToString 
 @EqualsAndHashCode 
 public abstract class AbstractEntity实现Serializable {
 
 private static final long serialVersionUID = 1L; 
 @Id 
 @GeneratedValue（strategy = GenerationType.IDENTITY）
 @SequenceGenerator（name =seq）
 @Column（name =ID）
 private Long id = 0L; 
 
 @CreatedDate 
 // @Generated（GenerationTime.INSERT）
 @Column（name =CREATED，insertable = true，updatable = false）
 @Temporal （TemporalType.TIMESTAMP）
私人创建日期; 
 
 @LastModifiedDate 
 @Version 
 // @Generated（GenerationTime.ALWAYS）
 @Temporal（TemporalType.TIMESTAMP）
 @Column（name = LAST_MODIFIED，insertable = false，updatable = true）
 private last lastModified; 
 $ b $ / ** 
 *将自动生成的字段id，创建和上次修改后的形式给定实体/ DTO复制到此实体/ DTO 
 * 
 * @param copyEntity要复制的实体。 
 * / 
 public void copy（AbstractEntity copyEntity）{
 this.setId（copyEntity.getId（））; 
 this.setCreated（copyEntity.getCreated（））; 
 this.setLastModified（copyEntity.getLastModified（））; 
} 
 
} 
  

我的配置：

$ $ p $ $ $ c $ @ $配置$ b $ @ActiveProfiles（开发）
@EnableTransactionManagement
@EnableJpaRepositories
@ EnableJpaAuditing（setDates = false，auditorAwareRef =auditorAware）
public class RepositoryTestContext {

@Bean
public AuditorAware< String> auditorAware（）{
return new AuditorAware< String>（）{

@Override
public String getCurrentAuditor（）{
returndummy;
}
};


$ / code $ / pre

基本上我的测试显示创建日期和上次修改日期没有被更新。任何想法???我认为你在你的AbstractEntity上缺少@EntityListeners注解：

$ b $

解决方案

  @EntityListeners（{AuditingEntityListener.class}）
 @MappedSuperclass 
 @Data 
 @ToString 
 @EqualsAndHashCode 
 public abstract class AbstractEntity实现Serializable {
  

I'm trying to migrate my app to generate the schema using the entities, instead of having a pre existing schema. Up until now, the create and lastModify dates where updated by the DB (MySql), but now since i want to generate the schema from JPA, i must do this programatically.

Before, i always used @PrePersit and @PreUpdate to do this without any problems but now it doesn't work and i think it's because i use spring data's CrudRepository Interfaces for my DAOs, so i don't know what's going on with the entity manager here...

I did some research and i found a few thing about spring auditing, but i couldn't get it to work. at the moment i'm trying the @Created and @LastModified annotations, but they don't work. this is what i have now: my abstractentity:

@MappedSuperclass
@Data
@ToString
@EqualsAndHashCode
public abstract class AbstractEntity implements Serializable {

private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@SequenceGenerator(name = "seq")
@Column(name = "ID")
private Long id = 0L;

@CreatedDate
// @Generated(GenerationTime.INSERT)
@Column(name = "CREATED", insertable = true, updatable = false)
@Temporal(TemporalType.TIMESTAMP)
private Date created;

@LastModifiedDate
@Version
// @Generated(GenerationTime.ALWAYS)
@Temporal(TemporalType.TIMESTAMP)
@Column(name = "LAST_MODIFIED", insertable = false, updatable = true)
private Date lastModified;

/**
 * copies the auto generated fields id, created and last modified form the given entity/DTO to this entity/DTO
 * 
 * @param copyEntity the entity to copy from.
 */
public void copy(AbstractEntity copyEntity) {
    this.setId(copyEntity.getId());
    this.setCreated(copyEntity.getCreated());
    this.setLastModified(copyEntity.getLastModified());
}

}

my configuration:

@Configuration
@ActiveProfiles("development")
@EnableTransactionManagement
@EnableJpaRepositories
@EnableJpaAuditing(setDates = false, auditorAwareRef = "auditorAware")
public class RepositoryTestContext {

    @Bean
    public AuditorAware<String> auditorAware() {
        return new AuditorAware<String>() {

            @Override
            public String getCurrentAuditor() {
                return "dummy";
            }
        };
    }
}

Basically my tests show that the create date and last modify date are not being updated. any ideas???

解决方案

I think you are missing the @EntityListeners annotation on your AbstractEntity :

@EntityListeners({AuditingEntityListener.class})
@MappedSuperclass
@Data
@ToString
@EqualsAndHashCode
public abstract class AbstractEntity implements Serializable {

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