我在eclipse控制台上得到以下异常
Exception in thread "main" org.hibernate.MappingException: Unknown entity: bitronix.examples.hibernate.entities.User我的hibernate.cfg.xml就像:
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.password">postgres</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/bitronixH4</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="hibernate.hbm2ddl.auto">create</property>
<mapping resource="bitronix/examples/hibernate/entities/User.hbm.xml" />
</session-factory>
</hibernate-configuration>我的Test.java类就像
package bitronix.examples.hibernate.entities;
public class Test {
public static void main(String[] args) {
Configuration configuration = new Configuration();
configuration.configure("hibernate.cfg.xml");
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.applySettings(configuration.getProperties()).build();
SessionFactory sf1 = new Configuration()
.buildSessionFactory(serviceRegistry);
Session session = sf1.openSession();
session.beginTransaction();
User user = new User();
user.setName("rrr");
session.save(user);
session.getTransaction().commit();
}
}

如有任何建议或帮助,敬请见谅。
编辑:我的User.java是这样的
public class User {
private Integer id;
private String name;
//getters and setters
}我的User.hbm.xml是这样的
<hibernate-mapping >
<class name="bitronix.examples.hibernate.entities.User" table="test_user" >
<id name="id" type="int">
<column name="id" />
<generator class="identity" />
</id>
<property name="name" type="string">
<column name="name" />
</property>
</class>
</hibernate-mapping>发布于 2016-02-26 08:04:18
很明显,配置代码的问题。创建两次Configuration。
就这么做
SessionFactory sf1 = new Configuration().configure().buildSessionFactory();我知道,在Hibernate 4中它是不推荐的,但是对于Hibernate 5来说,这是一个很好的方法。此Hibernate 4方法将不适用于Hibernate 5。
Hibernate 5 :- org.hibernate.MappingException: Unknown entity
https://stackoverflow.com/questions/35644689
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