按照参数的顺序 从0开始传递的参数 用 0 1 2 代替 缺点是 如果需要在已有的查询条件之前再加条件 需要 修改其他参数的索引
因为是多个参数 parameterType 不确定 所以 在定义 select 标签时 parameterType 不用写
Mapper:
<select id = "selectBuMenByPage" resultType = "BuMen"> With deptInfo AS ( select ROW_NUMBER() OVER(order by id ASC) AS RowNumber,* from tbInfoDept ) Select * FROM deptInfo Where RowNumber BETWEEN (#{1}*#{0} - #{0}+1) AND (#{1}*#{0}) </select>
注意:的是 select 查询中 如果用 Top 的话 是不支持 # 占位符传参的 Top后面是不允许使用问号占位符的
接口:参数名任意
List<BuMen> selectBuMenByPage(int offset,int pagesize);
测试调用:
public void selectBuMenByPage() { SqlSession session = BuMenUtil.getSqlSession(); BuMenMapper buMenMapper = session.getMapper(BuMenMapper.class); List<BuMen> buMenlisList = buMenMapper.selectBuMenByPage(3,2); session.close(); System.out.println(buMenlisList); }
Mapper:
<select id = "selectBuMenByPage" resultType = "BuMen"> With deptInfo AS ( select ROW_NUMBER() OVER(order by id ASC) AS RowNumber,* from tbInfoDept ) Select * FROM deptInfo Where RowNumber BETWEEN (#{pagesize}*#{offset} - #{offset}+1) AND (#{pagesize}*#{offset}) </select>
接口:注解的value值要和Mapper中的#占位参数一致
List<BuMen> selectBuMenByPage(@Param(value = "offset")int offset,@Param(value = "pagesize")int pagesize);
Mapper:Mapper中的参数占位符要和调用接口时map中的Key一一对应
<select id = "selectBuMenByPage" resultType = "BuMen"> With deptInfo AS ( select ROW_NUMBER() OVER(order by id ASC) AS RowNumber,* from tbInfoDept ) Select * FROM deptInfo Where RowNumber BETWEEN (#{pagesize}*#{offset} - #{offset}+1) AND (#{pagesize}*#{offset}) </select>
接口:
List<BuMen> selectBuMenByPage(Map<String,Object> map);
测试:
@Test public void selectBuMenByPage() { SqlSession session = BuMenUtil.getSqlSession(); BuMenMapper buMenMapper = session.getMapper(BuMenMapper.class); Map<String, Object> map = new HashMap<String, Object>(); map.put("offset", 3); map.put("pagesize", 2); List<BuMen> buMenlisList = buMenMapper.selectBuMenByPage(map); session.close(); System.out.println(buMenlisList); }