org.springframework.orm.jpa.JpaSystemException：无法通过反射设置字段值 [POST_INSERT_INDICATOR] 值
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【中文标题】org.springframework.orm.jpa.JpaSystemException：无法通过反射设置字段值 [POST_INSERT_INDICATOR] 值【英文标题】：org.springframework.orm.jpa.JpaSystemException: Could not set field value [POST_INSERT_INDICATOR] value by reflection 【发布时间】：2017-10-14 03:38:20 【问题描述】：我使用 Spring Boot 项目，我有以下实体，
@Entity
public class Ip
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "IP_ADDR_ID_2")
private Long id;
@Column(name = "IP_ADDRESS_2")
@NotEmpty
private String address;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "ip")
private List<IMAssociation> httpInfoMessages2;
下面提供消息实体，
@Entity
public class Message
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "S_ID_2")
private Long sId;
@Column(name = "STATUS_ID_2")
private Long statusId;
@NotEmpty
@Column(name = "STATUS_2")
private String status;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "message")
private List<IMAssociation> message;
最后，实体提供了IP和消息之间的关联，
@Entity
@Table(name = "IP_HTTP_MESSAGE")
//@IdClass(AssociationId.class)
public class IMAssociation implements Serializable
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Id
@Column(name = "IP_ADDRESS_ID")
private Long ipAddressId;
@Id
@Column(name = "HTTP_MESSAGE_ID")
private Long httpMessageId;
@ManyToOne
@PrimaryKeyJoinColumn(name = "ipAddressId", referencedColumnName = "IP_ADDR_ID_2")
// @JoinColumn(name = "ipAddressId", updatable = false, insertable = false, referencedColumnName = "IP_ADDR_ID_2")
private Ip ip;
@ManyToOne
@PrimaryKeyJoinColumn(name = "httpMessageId", referencedColumnName = "S_ID_2")
// @JoinColumn(name = "httpMessageId", updatable = false, insertable = false, referencedColumnName = "S_ID_2")
private Message message;
// @ManyToOne
@JoinColumn(name = "IP_ADDRESS_2", updatable = false, insertable = false, referencedColumnName = "IP_ADDRESS_2")
private String address;
@JoinColumn(name = "STATUS_CODE", updatable = false, insertable = false, referencedColumnName = "STATUS_ID_2")
private Long code;
@JoinColumn(name = "STATUS_MESSAGE", updatable = false, insertable = false, referencedColumnName = "STATUS_2")
private String codeMessage;
public IMAssociation()
public IMAssociation(Long code, String codeMessage)
this.code = code;
this.codeMessage = codeMessage;
List<IMAssociation> 是通过代码生成的，
List<IMAssociation> imAssociations = new ArrayList<>();
for(int j =0; j < 5; j++)
IMAssociation imAssociation = new IMAssociation(Long.valueOf(integerListEntry.getKey()),
message);
imAssociations.add(imAssociation);
Ip ip = new Ip('127.0.0.1', imAssociations);
List<Ip> ips = new ArrayList<>();
ips.add(ip);
当我尝试在数据库中持久化 List<Ip> 时，我收到以下错误，
Caused by: org.springframework.orm.jpa.JpaSystemException: Could not set field value [POST_INSERT_INDICATOR] value by reflection : [class com.ef.entity.IMAssociation.id] setter of com.ef.entity.IMAssociation.id; nested exception is org.hibernate.PropertyAccessException: Could not set field value [POST_INSERT_INDICATOR] value by reflection : [class com.ef.entity.IMAssociation.id] setter of com.ef.entity.IMAssociation.id
Caused by: org.hibernate.PropertyAccessException: Could not set field value [POST_INSERT_INDICATOR] value by reflection : [class com.ef.entity.IMAssociation.id] setter of com.ef.entity.IMAssociation.id
at org.hibernate.property.access.spi.SetterFieldImpl.set(SetterFieldImpl.java:58) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.mapping.Component$ValueGenerationPlan.execute(Component.java:419) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.id.CompositeNestedGeneratedValueGenerator.generate(CompositeNestedGeneratedValueGenerator.java:97) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:101) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:67) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:189) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:132) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:765) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:758) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener$1.cascade(JpaPersistEventListener.java:80) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:398) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:162) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:431) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:363) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:326) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:162) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:111) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:278) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:178) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:109) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:67) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:189) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:132) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:58) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:775) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:748) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:753) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1146) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.Long field com.ef.entity.IMAssociation.id to org.hibernate.id.IdentifierGeneratorHelper$2
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167) ~[na:1.8.0_144]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171) ~[na:1.8.0_144]
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) ~[na:1.8.0_144]
这里有什么问题？
Update
我已经更改了IMAssociation 类及其下面提供的内容，
@Entity
@Table(name = "IP_HTTP_MESSAGE")
//@IdClass(AssociationId.class)
public class IMAssociation implements Serializable
// @Id
// @GeneratedValue(strategy = GenerationType.IDENTITY)
// private Long id;
@Id
@Column(name = "IP_ADDRESS_ID")
private Long ipAddressId;
@Id
@Column(name = "HTTP_MESSAGE_ID")
private Long httpMessageId;
@ManyToOne
@PrimaryKeyJoinColumn(name = "IP_ADDRESS_ID", referencedColumnName = "IP_ADDR_ID_2")
// @JoinColumn(name = "ipAddressId", updatable = false, insertable = false, referencedColumnName = "IP_ADDR_ID_2")
private Ip ip;
@ManyToOne
@PrimaryKeyJoinColumn(name = "HTTP_MESSAGE_ID", referencedColumnName = "S_ID_2")
// @JoinColumn(name = "httpMessageId", updatable = false, insertable = false, referencedColumnName = "S_ID_2")
private Message message;
// @ManyToOne
@JoinColumn(name = "IP_ADDRESS_2", updatable = false, insertable = false, referencedColumnName = "IP_ADDRESS_2")
private String address;
@JoinColumn(name = "STATUS_CODE", updatable = false, insertable = false, referencedColumnName = "STATUS_ID_2")
private Long code;
@JoinColumn(name = "STATUS_MESSAGE", updatable = false, insertable = false, referencedColumnName = "STATUS_2")
private String codeMessage;
public IMAssociation()
public IMAssociation(Long code, String codeMessage)
this.code = code;
this.codeMessage = codeMessage;
现在，我在运行应用程序时收到以下错误，
Caused by: javax.persistence.EntityExistsException: A different object with the same identifier value was already associated with the session : [com.ef.entity.IMAssociation#IMAssociation, ipAddressId=null, httpMessageId=null, ip=null, message=null, address='null', code=404, codeMessage='404_Not Found']
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1664) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1608) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1152) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final]
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
【问题讨论】：
请看***.com/questions/16124638/… 您的实体IMAssociation 中有多个主键。您要么声明 @IdClass 或 @EmbeddedId 以具有复合主键/复合键，但我没有看到您使用过其中任何一个。
另外，您在这里错误地使用了@PrimaryKeyJoinColumn。 name 属性应该映射到表的物理列名，而不是某些实体属性。所以应该是@PrimaryKeyColumn(name="IP_ADDRESS_ID", referencedColumnName = "IP_ADDR_ID_2")和@PrimaryKeyColumn(name="HTTP_MESSAGE_ID", referencedColumnName = "S_ID_2")
我尝试在Ip 类的顶部使用@IdClass(AssociationId.class)，其中AssociationId 实现Serializable。这并不能解决问题，并且仍然提供相同的错误。使用@EmbeddedId 的正确方法是什么？我使用它而不是 @Id 并得到一些错误
@Ish 我实际上已经尝试了我提供的所有建议，但仍然遇到同样的错误。如果您现在有一个开放的 IDE，您介意提供一个可行的解决方案吗？
【参考方案1】：
这是你的问题： https://hibernate.atlassian.net/browse/HHH-6044
SO 中的类似帖子：Hibernate @GeneratedValue in a composite key
这里有 3 个选项：
-
您仍然可以实现复合键，但您必须删除
IMAssociation 实体中自动生成的 ID。您的复合键将仅由 2 个属性组成 - ipAddressId 和 httpMessageId，它们分别是来自您的 Address 和 Message 实体的派生键/外键。
或者您实现单个主键：在这里您可以通过 IDENTITY 策略使用 id 自动生成，但您必须删除您声明的其他 id 字段 - ipAddressId 和 httpMessageId。
如果您仍想保留 3 个 Id 字段 - id、ipAddressId 和 httpMessageId，则删除 id 自动生成（@GeneratedValue 注释）并手动为您的 IMAssociation 实体分配一个 id 值.
【讨论】：
我尝试了第一个选项并得到了一些错误。我在更新的问题中提供了错误堆栈。如果你能提供一个可行的解决方案，我真的很感激【参考方案2】：可能不需要ipAddressId 和httpMessageId 我认为包含这些值的列是由@PrimaryKeyJoinColumn 注释在dblevel 中自动生成的，并且可以通过ip.getMessage() 在IMAssociation 中访问该值和ip.getId()。
【讨论】：
这可以正常工作，但令人惊讶的是，我发现地址列中没有任何值是有线的 删除String address 并使用 ip.getAddress()，我猜以上是关于org.springframework.orm.jpa.JpaSystemException：无法通过反射设置字段值 [POST_INSERT_INDICATOR] 值的主要内容，如果未能解决你的问题，请参考以下文章