Hibernate中的QBC（标准查询）Criteria 即原生SQL查询

QCB查询： 

        //Criteria 标准
	//conjunction连接词And
	//disConjunction Or
	//Restriction 约束
	@Test
	public void testQBC2() {
		Criteria criteria = session.createCriteria(Item.class);
		//添加排序
		criteria.addOrder(Order.asc("id"));
		//添加分页
		int pageNo = 2;
		int size = 1;
		criteria.setFirstResult((pageNo - 1) * size);
		criteria.setMaxResults(size);
		
		Conjunction conjunction = Restrictions.conjunction();
//		conjunction.add(Restrictions.eq("id", 1));
//		conjunction.add(Restrictions.like("name", "衣",MatchMode.END));
		Disjunction disjunction = Restrictions.disjunction();
		disjunction.add(Restrictions.eq("id", 1));
		disjunction.add(Restrictions.like("name", "球",MatchMode.END));
		criteria.add(conjunction);
		criteria.add(disjunction);
		List<Item> items = criteria.list();
		System.out.println(criteria);
		items.forEach((item) -> System.out.println(item.getName()));
	}

        //统计查询
	@Test
	public void testQBC3() {
		Criteria criteria = session.createCriteria(Item.class);
		criteria.setProjection(Projections.max("amount"));
		System.out.println(criteria.uniqueResult());
	}

原生SQL查询：

        @Test
	public void testSqlQuery() {
		String sql = "insert into category(name) values(?)";
		Query query = session.createSQLQuery(sql).setString(0, "母婴");
		query.executeUpdate();
	}