org.hibernate.AnnotationException: No identifier specified for entity - even when it was
Solution 1
I had the following
import org.springframework.data.annotation.Id;
Naturally, it should be:
import javax.persistence.Id;
Thanks to @JB Nizet
Solution 2
I faced the same error.I solved it and figured out i didn't put @Id annotations in id field in my Entity class.
@Entity
@Table(name="geonames")
public class Geoname implements Serializable {
@Column(name="geonameid")
private Long geonameid = null;
}
checklist
Updated on July 27, 2022Comments
-
checklist almost 2 years
I have the following configuration:
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="dataSource" ref="jpaDataSource" /> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" /> </property> <property name="jpaProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="packagesToScan"> <list> <value>com.example.domain</value> <value>com.example.repositories</value> </list> </property> </bean>
I have my Geoname class in com.example.domain:
@Entity @Table(name="geonames") public class Geoname implements Serializable { @Id @Column(name="geonameid") private Long geonameid = null; }
yet, when running, I get the following exception:
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.example.domain.Geoname at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:277) at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:224) at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:664) at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3449) at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3403) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1330) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1730)
Any ideas why?
side note: I am combining both mongodb and hibernate/ mysql on this project.