Hibernate的load()和get()的用法和区别（八）_hibernate get的用法-优快云博客

本文链接：https://blog.youkuaiyun.com/cgwcgw_/article/details/17373419

本文介绍了如何使用Hibernate框架进行实体的删除与加载操作，包括创建实体、保存实体到数据库、执行删除操作以及从数据库加载实体的过程，并通过打印语句验证操作成功。

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	@Test
	public void testDelete() {
	
		Teacher t = new Teacher();
		t.setName("t1");
		t.setTitle("middle");
		t.setBirthDate(new Date());
		
		Session session = sessionFactory.getCurrentSession();
		session.beginTransaction();
		session.save(t);
		System.out.println(t.getId());
		session.getTransaction().commit();
		
		Session session2 = sessionFactory.getCurrentSession();
		session2.beginTransaction();
		session2.delete(t);
		session2.getTransaction().commit();
	}
	
	@Test
	public void testDelete2() {
	
		Teacher t = new Teacher();
		t.setId(1);
		
		
		Session session2 = sessionFactory.getCurrentSession();
		session2.beginTransaction();
		session2.delete(t);
		session2.getTransaction().commit();
	}
	
	@Test
	public void testLoad() {
	
		Session session = sessionFactory.getCurrentSession();
		session.beginTransaction();
		Teacher t = (Teacher)session.load(Teacher.class, 2);
		
		session.getTransaction().commit();
		System.out.println(t.getClass());
		//System.out.println(t.getName());
	}

2 结果，get不但打印sql语句，说明执行了，而且获取了Teacher类

class com.bjsxt.hibernate.Teacher_$$_javassist_1
Hibernate: 
    select
        teacher0_.id as id1_1_0_,
        teacher0_.birthDate as birthDat2_1_0_,
        teacher0_.gender as gender3_1_0_,
        teacher0_.good as good4_1_0_,
        teacher0_.name as name5_1_0_,
        teacher0_.title as title6_1_0_ 
    from
        Teacher teacher0_ 
    where
        teacher0_.id=?
class com.bjsxt.hibernate.Teacher