使用的版本取决于SpringBoot的版本，因为存在兼容性的问题，版本需要提前确认好。
<dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> <version>2.0.2</version> </dependency> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper</artifactId> <version>4.0.4</version> </dependency>
/** * @author zkm * @date 2019/5/19 18:29 */ @Configuration @tk.mybatis.spring.annotation.MapperScan("top.zhangsanwan.eat.repository") @EnableTransactionManagement public class DalConfig { }
注意：这个Base接口一定不要放在repository包下面，换言之就是不要被上面的Mapper组件扫描配置给扫描到！
创建BaseRepository<T>继承3个tk.mybatis.mapper下的接口：
/** * @author zkm * @date 2019/5/19 18:29 */ public interface BaseRepository<T> extends Mapper<T>, IdsMapper<T>, InsertListMapper<T> { }
创建Dao查询接口MenuRepository，继承Dao层的Base接口BaseRepository，泛型为数据库表对应的映射类。
/** * @author zkm * @date 2019/5/19 18:24 */ public interface MenuRepository extends BaseRepository<Menu> { }
/** * @author zkm * @date 2019/5/19 18:23 */ @Service public class MenuServiceImpl implements IMenuService { @Resource private MenuRepository menuRepository; @Override public List<MenuVO> getMenu(String date) { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String today = StringUtils.isEmpty(date) ? format.format(new Date()) : date; Example example = new Example(Menu.class); example.createCriteria().andGreaterThanOrEqualTo("createAt", today + " 00:00:00") .andLessThanOrEqualTo("createAt", today + " 23:59:59"); example.setOrderByClause("sort asc"); List<Menu> menuList = menuRepository.selectByExample(example); List<MenuVO> menuVOList = Lists.newArrayList(); menuList.forEach(menu -> { MenuVO menuVO = new MenuVO(); BeanUtils.copyProperties(menu, menuVO); menuVOList.add(menuVO); }); return menuVOList; } }
原文：https://www.cnblogs.com/zkm1992/p/10939730.html