@SpringBootTest
@RunWith(SpringRunner.class)//@RunWith(SpringRunner.class)这些类才能实例化到spring容器中，自动注入才能生效,不然会报异常
public class DictDaoTest extends TestCase {
    @Autowired
    private  DictDao dao;
    @Test
    public  void getByIdText(){
        Dict dict = dao.getById(1l);
        System.out.println("=================================="+dict);
    }
}

测试结果:

==================================Dict{type='sex', k='0', val='女'}