1. User 객체에 캡슐화

1-UserMapper.java

// ： ，  -- 
//public List getUserListByUserNameAndUserRole(String userName,Integer userRole);
public List<User> getUserListByUserNameAndUserRole(User user);

2-UserMapper.xml

<!-- ： ，  :#{ ， }-->
<select id="getUserListByUserNameAndUserRole"  parameterType="User" resultType="User">
    SELECT *
    FROM smbms_user
    WHERE userName
    LIKE CONCAT('%',#{userName},'%')
    AND userRole=#{userRole}
</select>

3 - 테스트 클래스

@Test
    public void getUserListByUserNameAndUserRoleTest(){
        SqlSession sqlSession = MyBatisUtil.createSqlSession();

/*        String userName=" ";
        Integer userRole=2;*/
        User user = new User();
        user.setUserName(" ");
        user.setUserRole(2);

        List<User> userList = sqlSession.getMapper(UserMapper.class).getUserListByUserNameAndUserRole(user);

        for(User u:userList){
            logger.debug(u.getId()+"\t"+u.getUserName()+"\t"+u.getUserRole());
        }

        // 
        sqlSession.commit();

        MyBatisUtil.closeSqlSession(sqlSession);
    }

2. 맵에 봉인

1-UserMapper.java

// ： ，  -- map
public List<User> getUserListByUserNameAndUserRole_map(Map<String,Object> userMap);

2-UserMapper.xml

<!-- ： ，  ： map;#{ map key }-->
<select id="getUserListByUserNameAndUserRole_map" parameterType="map" resultType="User">
    select * from smbms_user
    where userName like CONCAT('%',#{yiyang},'%') and userRole=#{qianxi}
</select>

3 - 테스트 클래스

@Test
    public  void getUserListByUserNameAndUserRole_mapTest(){
        SqlSession sqlSession = MyBatisUtil.createSqlSession();

        Map<String,Object> userMap=new HashMap<>();

        userMap.put("yiyang"," ");
        userMap.put("qianxi","2");

        List<User> userList = sqlSession.getMapper(UserMapper.class).getUserListByUserNameAndUserRole_map(userMap);

        for(User u:userList){
            logger.debug(u.getId()+"\t"+u.getUserName()+"\t"+u.getUserRole());
        }

        // 
        sqlSession.commit();

        MyBatisUtil.closeSqlSession(sqlSession);
    }