at org.hibernate.cfg.HbmBinder.bindCollectionSecondPass(HbmBinder.java:2521)
at org.hibernate.cfg.HbmBinder$CollectionSecondPass.secondPass(HbmBinder.java:2807)
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:69)
at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1611)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1369)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1756)
at util.HibernateUtil.buildSessionFactory(HibernateUtil.java:19)
at util.HibernateUtil.<clinit>(HibernateUtil.java:13)
... 1 more
这个错误出现在
/**
* Called for all collections
*/
public static void bindCollectionSecondPass(Element node, Collection collection,
java.util.Map persistentClasses, Mappings mappings, java.util.Map inheritedMetas)
throws MappingException {
if ( collection.isOneToMany() ) {
OneToMany oneToMany = (OneToMany) collection.getElement();
String assocClass = oneToMany.getReferencedEntityName();
PersistentClass persistentClass = (PersistentClass) persistentClasses.get( assocClass );
if ( persistentClass == null ) {
throw new MappingException( "Association references unmapped class: " + assocClass );
}
oneToMany.setAssociatedClass( persistentClass );
collection.setCollectionTable( persistentClass.getTable() );
if ( LOG.isDebugEnabled() ) {
LOG.debugf( "Mapping collection: %s -> %s", collection.getRole(), collection.getCollectionTable().getName() );
}
}
原因是我在User.hbm.xml中配置了One-to-many ， class是Order.
可是Order这个对象的hbm.xml我并没有在hibernate.cfg.xml中配置。
也就是缺少了<mapping resource="Order.hbm.xml"/>
导致出错。
看来Hibernate会在启动时对这些进行很仔细的检查，
怪不得启动这么慢。