Hibernate - OGM [PersistenceUnit：person]无法构建Hibernate SessionFactory [英] Hibernate - OGM [PersistenceUnit: person] Unable to build Hibernate SessionFactory
问题描述
我得到一个下面的错误
线程main中的异常javax.persistence.PersistenceException：[PersistenceUnit：person]无法建立在org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException（EntityManagerFactoryBuilderImpl.java:1249）
的SessionFactory
在org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.access $ 600（EntityManagerFactoryBuilderImpl。的java：120）
。在org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl $ 4.perform（EntityManagerFactoryBuilderImpl.java:860）$ b $在org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl $ 4.perform b（ EntityManagerFactoryBuilderImpl.java:850）
处org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl（ClassLoaderServiceImpl.java:425）
。构建（EntityManagerFactoryBuilderImpl.java:849）
在org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory（HibernatePersistenceProvider.java:75）
在org.hibernate.ogm.jpa.HibernateOgmPersistence.createEntityManagerFactory（HibernateOgmPersistence.java:63）
在javax.persistence.Persistence .createEntityManagerFactory（Persistence.java:55）
at javax.persistence.Persistence.createEntityManagerFactory（Persistence.java:39）
at com.ihappyk.utility.Utility.setUpEntityManagerFactory（Utility.java:11）
at com.ihappyk.work.PersonWorker.main（PersonWorker.java:14）
引起：org.hibernate.MappingException：无法实例化id生成器[entity-name = com.ihappyk.model.Person ]在org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.createIdentifierGenerator（DefaultIdentifierGeneratorFactory.java:123）
。在org.hibernate.mapping.SimpleValue.createIdentifierGenerator（SimpleValue.java:225）
在org.hibernate.internal.SessionFactory Impl。（SessionFactoryImpl.java:323）
at org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1859）
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl $ 4.perform（ EntityManagerFactoryBuilderImpl.java:857）
... 9 more
导致：org.hibernate.HibernateException：在org.hibernate中UUID转换为
的未预料到的返回类型[java.lang.Long]。 id.UUIDGenerator.configure（UUIDGenerator.java:111）在org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.createIdentifierGenerator（DefaultIdentifierGeneratorFactory.java:117）
... 13更
Utilty.java
public class Utility {
private static EntityManagerFactory entityManagerFactory;
// @ BeforeClass
public static EntityManagerFactory setUpEntityManagerFactory（）{
entityManagerFactory = Persistence.createEntityManagerFactory（person）;
返回entityManagerFactory;
// @ AfterClass
public static void closeEntityManagerFactory（）{
entityManagerFactory.close（）;
$ b $持续班 @Entity
public class Person {
@Id
@GeneratedValue（generator =uuid）
@GenericGenerator（name =uuid，strategy =uuid2）
私人长ID;
private String firstName;
private String lastName;
public long getId（）{
return id;
}
public void setId（long id）{
this.id = id;
}
public String getFirstName（）{
return firstName;
}
public void setFirstName（String firstName）{
this.firstName = firstName;
}
public String getLastName（）{
return lastName;
}
public void setLastName（String lastName）{
this.lastName = lastName;
public Person（）{
}
public Person（String firstName，String lastName）{
this .firstName = firstName;
this.lastName = lastName;
主类
public class PersonWorker {
public static void main（String [] args）{
// TODO自动生成的方法存根
EntityManagerFactory emf = Utility.setUpEntityManagerFactory（）;
EntityManager em = emf.createEntityManager（）;
em.getTransaction（）。begin（）;
//创建一个人
Person bob =新人（Bob，McRobb）;
em.persist（bob）;
em.getTransaction（）。commit（）;
em.close（）;
emf.close（）;
$ b
persistance.xml
<？xml version =1.0？>
< persistence xmlns =http://java.sun.com/xml/ns/persistence
xmlns：xsi =http://www.w3.org/2001/XMLSchema-instance
xsi：schemaLocation =http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd
version = 2.0 >
< persistence-unit name =persontransaction-type =JTA>
< provider> org.hibernate.ogm.jpa.HibernateOgmPersistence< / provider>
< class> com.ihappyk.model.Person< / class>
<属性>
< property name =hibernate.ogm.datastore.providervalue =mongodb/>
< property name =hibernate.ogm.datastore.databasevalue =hibernateOGM/>
< property name =hibernate.ogm.datastore.hostvalue =127.0.0.1/>
< property name =hibernate.ogm.datastore.portvalue =27017/>
< property name =hibernate.ogm.datastore.providervalue =org.hibernate.ogm.datastore.mongodb.impl.MongoDBDatastoreProvider/>
< property name =hibernate.transaction.jta.platformvalue =org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform/>
< / properties>
< / persistence-unit>
< /余辉>
解决方案根异常说明了一切：
引起：org.hibernate.HibernateException：对于UUID
您正在使用不支持的类型的UUID ID生成器。在这种情况下，您应该使用字符串而不是 Long 。
i am getting an below error
Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: person] Unable to build Hibernate SessionFactory
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1249)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.access$600(EntityManagerFactoryBuilderImpl.java:120)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:860)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:75)
at org.hibernate.ogm.jpa.HibernateOgmPersistence.createEntityManagerFactory(HibernateOgmPersistence.java:63)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
at com.ihappyk.utility.Utility.setUpEntityManagerFactory(Utility.java:11)
at com.ihappyk.work.PersonWorker.main(PersonWorker.java:14)
Caused by: org.hibernate.MappingException: Could not instantiate id generator [entity-name=com.ihappyk.model.Person]
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.createIdentifierGenerator(DefaultIdentifierGeneratorFactory.java:123)
at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:225)
at org.hibernate.internal.SessionFactoryImpl.(SessionFactoryImpl.java:323)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:857)
... 9 more
Caused by: org.hibernate.HibernateException: Unanticipated return type [java.lang.Long] for UUID conversion
at org.hibernate.id.UUIDGenerator.configure(UUIDGenerator.java:111)
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.createIdentifierGenerator(DefaultIdentifierGeneratorFactory.java:117)
... 13 more
Utilty.java
public class Utility {
private static EntityManagerFactory entityManagerFactory;
//@BeforeClass
public static EntityManagerFactory setUpEntityManagerFactory() {
entityManagerFactory = Persistence.createEntityManagerFactory( "person" );
return entityManagerFactory;
}
//@AfterClass
public static void closeEntityManagerFactory() {
entityManagerFactory.close();
}
}
Persistant Class
@Entity
public class Person {
@Id
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid2")
private long id;
private String firstName;
private String lastName;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Person(){
}
public Person(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
}
main class
public class PersonWorker {
public static void main(String[] args) {
// TODO Auto-generated method stub
EntityManagerFactory emf = Utility.setUpEntityManagerFactory();
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
// create a Person
Person bob = new Person( "Bob", "McRobb" );
em.persist( bob );
em.getTransaction().commit();
em.close();
emf.close();
}
}
persistance.xml
<?xml version="1.0"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="person" transaction-type="JTA">
<provider>org.hibernate.ogm.jpa.HibernateOgmPersistence</provider>
<class>com.ihappyk.model.Person</class>
<properties>
<property name="hibernate.ogm.datastore.provider" value="mongodb" />
<property name="hibernate.ogm.datastore.database" value="hibernateOGM" />
<property name="hibernate.ogm.datastore.host" value="127.0.0.1" />
<property name="hibernate.ogm.datastore.port" value="27017" />
<property name="hibernate.ogm.datastore.provider" value="org.hibernate.ogm.datastore.mongodb.impl.MongoDBDatastoreProvider"/>
<property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform"/>
</properties>
</persistence-unit>
</persistence>
解决方案 The root exception says it all:
Caused by: org.hibernate.HibernateException: Unanticipated return type [java.lang.Long] for UUID
You are using a UUID id generator on a type which it does not support. You should use String instead of Long in this case.
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