Hibernate getCurrentSession()和openSession()的区别

 1     @Test
 2     public void testTeacherSave() {
 3
 4         Teacher t = new Teacher();
 5
 6         t.setName("t1");
 7         t.setTitle("middle");
 8         t.setBirthDate(new Date());
 9
10         Session session = sessionFactory.openSession();
11         //Session session = sessionFactory.getCurrentSession();
12
13         session.beginTransaction();
14         session.save(t);
15
16         Session session2 = sessionFactory.getCurrentSession();
17
18         System.out.println(session == session2);
19
20         session.getTransaction().commit();
21
22         Session session3 = sessionFactory.getCurrentSession();
23
24         System.out.println(session == session3);
25
26     }

输出：Hibernate:
    insert
    into
        Teacher
        (birthDate, gender, good, name, title)
    values
        (?, ?, ?, ?, ?)
false
false

 1 @Test
 2     public void testTeacherSave() {
 3
 4         Teacher t = new Teacher();
 5
 6         t.setName("t1");
 7         t.setTitle("middle");
 8         t.setBirthDate(new Date());
 9
10         //Session session = sessionFactory.openSession();
11         Session session = sessionFactory.getCurrentSession();
12
13         session.beginTransaction();
14         session.save(t);
15
16         Session session2 = sessionFactory.getCurrentSession();
17
18         System.out.println(session == session2);
19
20         session.getTransaction().commit();
21
22         Session session3 = sessionFactory.getCurrentSession();
23
24         System.out.println(session == session3);
25
26     }

输出：Hibernate:
    insert
    into
        Teacher
        (birthDate, gender, good, name, title)
    values
        (?, ?, ?, ?, ?)
true
false