Mybatis学习第4节 -- 多参数传递

Posted 2021-02-13 积水成渊

第一种方法使用索引

一般不使用,不记录

第二种方法使用注解

接口

List<Shop> getShopListByPageAno(@Param(value = "offset") int offset, @Param(value = "pagesize") int pagesize);

mapper

<select id="getShopListByPageAno" resultMap="simpleResultMap" > select * from tb_shop ORDER BY CONVERT(shop_name USING gbk) limit #{offset}, #{pagesize} </select>

用例

@Test public void testGetShopListByPageAno() { String template = "查询结果: %s"; SqlSession session = MyBatisUtil.getSqlSession(); ShopMapper mapper = session.getMapper(ShopMapper.class); System.out.printf(template, mapper.getShopListByPageAno(2, 1)); session.close(); }

第三种方法, 通过Map来传递

接口

List<Shop> getShopListByPageMap(Map<String, Object> map);

mapper

<select id="getShopListByPageMap" resultMap="simpleResultMap" > select * from tb_shop ORDER BY CONVERT(shop_name USING gbk) limit #{offset}, #{pagesize} </select>

用例

@Test public void testGetShopListByPage() { String template = "查询结果: %s"; SqlSession session = MyBatisUtil.getSqlSession(); ShopMapper mapper = session.getMapper(ShopMapper.class); Map<String, Object> paramMap = new HashMap<String, Object>(); paramMap.put("offset", 2); paramMap.put("pagesize", 2); System.out.printf(template, mapper.getShopListByPageMap(paramMap)); session.close(); }