小编Moh*_*ami的帖子

我是hibernate的新手,我正在尝试测试我的实体(持久性),这个错误一直在显示

Exception in thread "main" java.lang.NoClassDefFoundError: org/hibernate/boot/registry/classloading/spi/ClassLoaderService
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:80)
at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:71)
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
at Pers.PersistTest.main(PersistTest.java:20)
Caused by: java.lang.ClassNotFoundException:org.hibernate.boot.registry.classloading.spi.ClassLoaderService
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 6 more

这是我的实体

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity
 public class User {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int idUser;
...
private boolean isAdmin;

(当然还有getter和setter以及构造函数)

这是测试类

public class PersistTest {
public static void main(String[] args) { 

    EntityManagerFactory emf=Persistence.createEntityManagerFactory("PU");
    EntityManager em = emf.createEntityManager();
    Session s = new AnnotationConfiguration()  
            .configure().buildSessionFactory().openSession(); …