学步园

 

public class HibernateCoreAPITest {
private static SessionFactory sessionFactory;
    
    @BeforeClass
    public static void beforeClass() {
            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
    }
    @AfterClass
    public static void afterClass() {
        sessionFactory.close();
    }
    
    @Test
    public void testGetStudent() {
        Session session = sessionFactory.getCurrentSession();
        session.beginTransaction();
        Student s = (Student)session.get(Student.class, 1);
        s.setName("xml");
        session.getTransaction().commit();
    }
}

此时总是行不通,在main里面

public static void main(String[] args) {
		beforeClass();
		afterClass();
	}

 这才查出来

之前这样写的

<mapping class="com/test/hibernate/model/Student.hbm.xml" />
<mapping class="com.test.hibernate.model.Teacher" />

正确写法

xml :<mapping resource="com/test/hibernate/model/Student.hbm.xml"/>
注解:<mapping class="com.test.hibernate.model.Teacher"/>