2021.4.2

mybatis 返回值类型

假设，我们的实体类，或者数据库中的表，字段或者参数过多，我们应当考虑使用Map

这是网课中的原话

<insert id="addUser2" parameterType="map">
insert into mybatis.mybatis (name, password) VALUES (#{username},#{userpassword})
</insert>

@Test
public void addUser2(){
SqlSession sqlSession = MybatisUtils.getSqlSession();
UserDao mapper = sqlSession.getMapper(UserDao.class);

Map<String,Object> map = new HashMap<String,Object>();
map.put("username","李昱康");
map.put("userpassword","234");
mapper.addUser2(map);
sqlSession.commit();
sqlSession.close();
}