我有一个groovy实体ClientInvoiceAttachmentExt，它扩展了java实体ClientInvoiceAttachment。 ClientInvoiceAttachment有@Id注释，但仍然看到“没有为实体指定标识符”错误
这是我的堆栈跟踪
[Mar 03 17:11:54] ERROR | org.springframework.web.context.ContextLoader | Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'collaborationAPI': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.dc.apps.collaborationportal.security.service.CollaborationSecurityService com.dc.apps.collaborationportal.core.api.CollaborationAPI.security; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'collaborationSecurityService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected com.dc.apps.collaborationportal.feature.service.FeatureService com.dc.apps.collaborationportal.security.service.CollaborationSecurityService.featureService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'featureService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.dc.core.api.Services com.dc.apps.collaborationportal.feature.service.FeatureService.api; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'services': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.dc.core.api.SearchAPI com.dc.core.api.Services.search; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'searchAPI': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private transient org.hibernate.SessionFactory com.dc.core.entity.service.impl.QueryService.sessionFactory; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is com.dc.core.common.exception.BaseApplicationException: org.hibernate.AnnotationException: No identifier specified for entity: com.dc.apps.collaborationportal.ebilling.model.impl.ClientInvoiceAttachmentExt
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.dc.apps.collaborationportal.ebilling.model.impl.ClientInvoiceAttachmentExt
at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:268)
at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:223)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:686)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:4035)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3989)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1398)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1375)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:720)
at com.dc.core.entity.support.CustomFieldsSessionFactoryBean.buildSessionFactory(CustomFieldsSessionFactoryBean.java:252)
... 94 more
我的pom dependancies
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.10.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-search</artifactId>
<!-- this is the latest version that works with lucene-core 3.0.3
(which we are stuck with until jackrabbit supports later versions) -->
<version>3.3.0.Final</version>
<scope>provided</scope>
<exclusions>
<exclusion>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
</exclusion>
<exclusion>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</exclusion>
<exclusion>
<groupId>org.hibernate</groupId>
<artifactId>ejb3-persistence</artifactId>
</exclusion>
<exclusion>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
</exclusions>
</dependency>
这是我的Java类
package com.dc.apps.collaborationportal.ebilling.model.impl;
import javax.persistence.AssociationOverride;
import javax.persistence.Embedded;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Transient;
import org.hibernate.annotations.Entity;
import com.dc.core.common.annotations.AttributeMetadataDefaults;
import com.dc.core.common.annotations.EventDefaults;
import com.dc.core.common.annotations.EventHandlerDefaults;
import com.dc.core.entity.model.IPersistentEntityInstance;
import com.dc.core.entity.model.impl.File;
import com.dc.core.events.enums.EventTypeEnum;
import com.dc.core.security.annotation.AttributeReadPermission;
import com.dc.core.security.annotation.AttributeWritePermission;
import com.dc.core.security.annotation.ContainerReference;
@Entity
@EventDefaults({
@EventHandlerDefaults(eventType = EventTypeEnum.OnBeforeCreate, beanName = "checksumInvoiceAttachmentCommand"),
@EventHandlerDefaults(eventType = EventTypeEnum.OnBeforeCreate, beanName = "encryptInvoiceAttachmentCommand") })
public class ClientInvoiceAttachment implements IPersistentEntityInstance {
private static final long serialVersionUID = 1L;
private Long id;
private File attachment;
private String checksum;
private String invoiceNumber;
@Embedded
@AssociationOverride(name = "fileData", joinColumns = @JoinColumn(name = "attachment_file_data_id"))
public File getAttachment() {
return attachment;
}
public String getChecksum() {
return checksum;
}
@Transient
@AttributeMetadataDefaults(defaultDisplay = true)
public String getFileName() {
if (attachment == null) return "";
return attachment.getName();
}
@Id
@GeneratedValue
public Long getId() {
return id;
}
public String getInvoiceNumber() {
return invoiceNumber;
}
public void setAttachment(File attachment) {
this.attachment = attachment;
}
public void setChecksum(String checksum) {
this.checksum = checksum;
}
public void setId(Long id) {
this.id = id;
}
public void setInvoiceNumber(String invoiceNumber) {
this.invoiceNumber = invoiceNumber;
}
}
这是我的常规课程
package com.dc.apps.collaborationportal.ebilling.model.impl
import com.dc.core.api.Services;
import java.util.List
import javax.persistence.Column
import javax.persistence.OneToMany
import javax.persistence.ManyToMany
import javax.persistence.ManyToOne
import javax.persistence.Cacheable
import javax.persistence.Transient
import javax.persistence.JoinColumn
import javax.persistence.Embedded
import javax.persistence.Id
import javax.persistence.GeneratedValue
import javax.persistence.OneToOne
import javax.persistence.AssociationOverride
import javax.persistence.Lob
import javax.persistence.FetchType
import javax.persistence.Entity
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Indexed
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Index;
import org.hibernate.search.annotations.Store;
import org.hibernate.annotations.NamedQueries
import org.hibernate.annotations.NamedQuery
import org.hibernate.envers.Audited
import org.hibernate.envers.NotAudited
import org.hibernate.annotations.Cascade
import org.hibernate.annotations.Type
//import org.hibernate.annotations.Index
import org.hibernate.annotations.LazyCollection
import org.hibernate.annotations.LazyCollectionOption
import org.hibernate.annotations.Formula
import org.hibernate.annotations.Fetch
import org.hibernate.annotations.FetchMode
import org.hibernate.annotations.BatchSize
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.context.ApplicationContext
import org.springframework.context.ApplicationContextAware
import org.springframework.beans.BeansException
import com.dc.core.entity.enums.VersionStatusEnum
import com.dc.core.behavior.command.model.ICommandResult
import com.dc.core.behavior.command.model.impl.CommandResult
import com.dc.core.behavior.command.model.IEntityInstanceCommand
import com.dc.core.entity.model.IPersistentEntityInstance
import com.dc.core.behavior.trackchanges.model.IEntityChangeset
import com.dc.core.security.model.IContainer
import com.dc.core.security.annotation.ContainerReference
import com.dc.core.security.annotation.Encrypted
import com.dc.core.collaboration.enums.CollaborationRequestStatus
import com.dc.core.collaboration.model.ICollaborationParcel
import com.dc.core.collaboration.model.ICollaborationFeatureDetail
import org.hibernate.annotations.Cache
import org.hibernate.annotations.CacheConcurrencyStrategy
@javax.persistence.Entity
class ClientInvoiceAttachmentExt extends com.dc.apps.collaborationportal.ebilling.model.impl.ClientInvoiceAttachment implements IAmGroovy, Serializable {
@Autowired
protected transient Services services;
private static final long serialVersionUID = 711967972L;
public java.lang.String getCreatedBy() {
return this.createdBy;
}
public void setCreatedBy(java.lang.String createdBy) {
this.createdBy = createdBy;
}
protected createdBy;
public java.lang.String getUpdatedBy() {
return this.updatedBy;
}
public void setUpdatedBy(java.lang.String updatedBy) {
this.updatedBy = updatedBy;
}
protected updatedBy;
public java.sql.Timestamp getCreatedAt() {
return this.createdAt;
}
public void setCreatedAt(java.sql.Timestamp createdAt) {
this.createdAt = createdAt;
}
protected createdAt;
public java.sql.Timestamp getUpdatedAt() {
return this.updatedAt;
}
public void setUpdatedAt(java.sql.Timestamp updatedAt) {
this.updatedAt = updatedAt;
}
protected updatedAt;
protected transient ApplicationContext applicationContext;
}
答案 0 :(得分：7)
您的问题场景是继承映射。 Id字段在你的超级课程中，但是你的孩子课程如何与他们的父母相关。
映射继承层次结构有不同的策略。
我认为你缺少与上述相关的注释。
基于判别器的方法..您需要按如下方式注释您的ParentClass：
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="type",discriminatorType=DiscriminatorType.STRING)
@DiscriminatorValue(value="ParentClass")
在你的孩子班上：
@DiscriminatorValue("childClasss")
请参考一些关于继承映射的教程，例如this one，或者你可以谷歌它。
答案 1 :(得分：0)
我看到了类似的错误。如果您拥有一个与其他类具有一对一关系的类，则该其他类应具有一个主键作为标识符。 （我的应用使用的是Spring Boot，JPA，H2，Lombok）
例如：
@Entity
@Getter
@Setter
Class A{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="b")
public B b;
}
现在，如果您错过编写如下所示的B类的主键或标识符，可能会引发类似的错误
@Entity
@Getter
@Setter
Class b{
/* Same error may be raised when he below code is missing*/
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long b_id;
@OneToOne(mappedBy = "bid")
public A a;
}
答案 2 :(得分：0)
有一个新的注释.addInterceptor(HeaderInterceptor())
添加到基类中，它仅影响OOP，而无需更改数据库。那就是我想要的。您可以详细了解in this post
答案 3 :(得分：0)
在使用JPA时遇到相同的错误，并且添加了@Id注释，
在使用JPA时，请确保该@Id注释应来自软件包 javax.persistence.Id ，而不是来自 org.springframework.data.annotation.Id 。
希望它可以节省您的宝贵时间。