org.hibernate.PropertyAccessException: Exception occurred inside getter of pack.

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报如下,异常是因为,在Person对象中.设置的属性类型不一致造成的..

请检查。对应bean中set方法数据类型和hibernate配置文件中定义的类型是否一致。

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比如你Person中的属性id 定义的类型为Integer ,而set方法是int id.这样则会发生这样的错误.改成统一的类型即可..

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%%%% Error Creating SessionFactory %%%%
org.hibernate.PropertyAccessException: Exception occurred inside getter of pack.java.model.Person.id
?at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:148)
?at org.hibernate.engine.UnsavedValueFactory.getUnsavedIdentifierValue(UnsavedValueFactory.java:44)
?at org.hibernate.tuple.PropertyFactory.buildIdentifierProperty(PropertyFactory.java:44)
?at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:123)
?at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:434)
?at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:109)
?at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
?at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226)
?at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
?at pack.java.hibernate.HibernateSessionFactory.<clinit>(HibernateSessionFactory.java:30)
?at pack.java.test.HibernateDaoDemo.getSession(HibernateDaoDemo.java:30)
?at pack.java.test.HibernateDaoDemo.main(HibernateDaoDemo.java:20)
Caused by: java.lang.reflect.InvocationTargetException
?at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
?at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
?at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
?at java.lang.reflect.Method.invoke(Method.java:592)
?at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
?... 11 more
Caused by: java.lang.NullPointerException
?at pack.java.model.Person.getId(Person.java:14)
?... 16 more
%%%% Error Creating SessionFactory %%%%
org.hibernate.InvalidMappingException: Could not parse mapping document from resource pack/java/model/Address_one_to_one.hbm.xml
?at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)
?at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
?at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
?at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
?at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
?at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
?at pack.java.hibernate.HibernateSessionFactory.rebuildSessionFactory(HibernateSessionFactory.java:68)
?at pack.java.hibernate.HibernateSessionFactory.getSession(HibernateSessionFactory.java:52)
?at pack.java.test.HibernateDaoDemo.getSession(HibernateDaoDemo.java:30)
?at pack.java.test.HibernateDaoDemo.main(HibernateDaoDemo.java:20)
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping pack.java.model.Address
?at org.hibernate.cfg.Mappings.addClass(Mappings.java:118)
?at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:145)
?at org.hibernate.cfg.Configuration.add(Configuration.java:669)
?at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:504)
?at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
?... 9 more