hibernate时的未知实体

执行主类时出现此错误。 我试图在表组合中插入新记录。 如您所见,我正在使用Hibernate ORM模型来做到这一点。 还可以说hibernate在没有任何问题的情况下连接数据库!

Exception in thread "main" org.hibernate.MappingException: Unknown entity: com.nortal.vspa.model.Portfolio at org.hibernate.internal.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:1129) at org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1402) at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:117) at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:204) at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55) at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:189) at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49) at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90) at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:756) at org.hibernate.internal.SessionImpl.save(SessionImpl.java:748) at org.hibernate.internal.SessionImpl.save(SessionImpl.java:744) at com.nortal.vspa.main.Main.main(Main.java:24) 

实体类:

 @Entity @Table(name="portfolio") public class Portfolio implements Serializable { private static final long serialVersionUID = -1136208004146721604L; @Id @Column(name="symbol") private String symbol; public String getSymbol() { return symbol; } public void setSymbol(String symbol) { this.symbol = symbol; } } 

主类:

 public class Main { /** * @param args */ public static void main(String[] args) { Session session = HibernateUtil.getSessionFactory().openSession(); session.beginTransaction(); Portfolio portfolio = new Portfolio(); portfolio.setSymbol("MB"); session.save(portfolio); session.getTransaction().commit(); } } 

Hibernate配置文件必须列出实体类:

  

或者您必须使用明确地将类添加到配置中

 configuration.addClass(com.foo.bar.Portfolio.class)