技術標籤：mybatis

文章目錄

• • • 分頁
    • • • limit實現分頁
        • RowBounds

分頁

limit實現分頁

1. 介面

//分頁查詢
List<User> getUserListByLimit(Map<String, Integer> map);

2. UserMapper.xml

<!--    分頁查詢-->
<select id="getUserListByLimit" resultMap="userMap" parameterType="map">
    select * from user limit #{startIndex}, #{pageSize};
</
 
select>

3. 測試

@Test
public void getUserListByLimit(){
    SqlSession sqlSession = MybatisUtils.getSqlSession();
    UserMapper mapper = sqlSession.getMapper(UserMapper.class);
    HashMap<String, Integer> hashMap = new HashMap<String, Integer>();
    hashMap.put("startIndex", 0
 
);
    hashMap.put("pageSize", 3);
    List<User> userList = mapper.getUserListByLimit(hashMap);
    for (User user : userList) {
        System.out.println(user);
    }
    sqlSession.close();
}

RowBounds

1. 介面

List<User> getUserListByRowBounds();

2. UserMapper.xml

<select id="
 
getUserListByRowBounds" resultType="user">
    select * from user;
</select>

3. 測試

@Test
public void getUserListByRowBounds(){
    SqlSession sqlSession = MybatisUtils.getSqlSession();
    RowBounds rowBounds = new RowBounds(0, 3);
    List<User> users = sqlSession.selectList("com.wjq.dao.UserMapper.getUserListByRowBounds", null, rowBounds);
    for (User user : users) {
        System.out.println(user);
    }
    sqlSession.close();
}

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