1.增加
@Test ???public void add(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????Emps emp=new Emps("cat","女",15,30,2000); ???????session.save(emp); ???????session.close(); ???????factory.close(); ???}2.查询
@Test ???public void query1(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????Emps emp=(Emps) session.get(Emps.class, 1005); ???????System.out.println(emp.toString()); ???????session.close(); ???????factory.close(); ???}延迟加载：
get方法：调用立刻发出sql查询
load方法：调用不发出sql，当我们需要使用该对象时才查询
Query：
当查询结果只有一个的时候可以使用uniqueResult()方法。
Emps emp=(Emps) query.uniqueResult();
分页：
???????Query query = session.createQuery("from Emps"); ???????//分页 ???????//从第几个开始取结果 ???????query.setFirstResult(0); ???????//每页最多有几个结果 ???????query.setMaxResults(3); ???????List<Emps> list = query.list(); ???3.修改表-需要创建事务
@Test ???public void update(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????Transaction ts=session.beginTransaction(); ???????Emps emp=(Emps) session.get(Emps.class, 1005); ???????emp.setAge(30); ???????session.update(emp); ???????ts.commit(); ???????System.out.println(emp.toString()); ???????session.close(); ???????factory.close(); ???}4.删除
@Test ???public void delete(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????Transaction ts=session.beginTransaction(); ???????//根据ID删除； ???????Emps emp=new Emps(); ???????emp.setId(1019); ???????session.delete(emp); ???????ts.commit(); ???????session.close(); ???????factory.close(); ???}5.查询所有对象（HQL）
HQL:Hibernate Query Language
@Test ???public void query2(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????Query query = session.createQuery("from Emps");//Emps是一个类名 ???????List<Emps> list = query.list(); ???????for(Emps e:list){ ???????????System.out.println(e); ???????} ???????session.close(); ???????factory.close(); ???}6. Criteria查询
@Test ???public void query3(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????//Criteria 查询：Hibernate面向对象的查询（无语句） ???????Criteria criteria=session.createCriteria(Emps.class); ???????List<Emps> list = criteria.list(); ???????for(Emps e:list){ ???????????System.out.println(e); ???????} ???????session.close(); ???????factory.close(); ???}7.Sql查询
@Test ???public void query4(){ ???????Configuration cfg=new Configuration().configure(); ???????SessionFactory factory=cfg.buildSessionFactory(); ???????Session session=factory.openSession(); ???????SQLQuery createSQLQuery = session.createSQLQuery("select * from emps"); ???????createSQLQuery.addEntity(Emps.class); ???????List<Emps> list = createSQLQuery.list(); ???????for(Emps e:list){ ???????????System.out.println(e); ???????} ???????session.close(); ???????factory.close(); ???}Hibernate Session操作
原文地址：https://www.cnblogs.com/xiaoaofengyue/p/8280227.html