列表的数据上移下移功能

@ApiOperation(value = "人员账号列表顺序调整功能（上移/下移）")
    @GetMapping("/personInfoMoveUp")
    @Log(option = "人员账号列表顺序调整功能（上移/下移）", businessType = BusinessType.UPDATE)
    public Result personInfoMoveUp(String oid,String operaType) {
          
   
        try {
          
   
            Integer code = personInfoService.personInfoMoveUp(oid, operaType);
            if(code==-2){
          
   
                return Result.error("未查询到人员账号信息");
            }
            return Result.success("排序成功");
        } catch (Exception e) {
          
   
            log.error("人员账号上移/下移异常", e);
            return Result.error("操作失败");
        }
    }

@Override
    public Integer personInfoMoveUp(String oid, String operaType) {
        PersonInfo personInfo = personInfoMapper.selectById(oid);
        if (Objects.isNull(personInfo)) {
            return -2;
        }
        // operaType等于1 上移
        if (IsValid.YES.getCode().equals(operaType)) {
            // 查询上一条记录的ID
            String perviousOid = personInfoMapper.selectPreviousId(personInfo.getSort());
            // 不为1 说明有上一条记录进行交换排序值
            if (!IsValid.YES.getCode().equals(perviousOid)) {
                PersonInfo perviousPersonInfo = personInfoMapper.selectById(perviousOid);
                // 将本条记录排序值设为上条
                personInfoMapper.updateSortById(personInfo.getOid(), perviousPersonInfo.getSort());

                // 将上条记录排序值设为本条
                personInfoMapper.updateSortById(perviousPersonInfo.getOid(), personInfo.getSort());
                return 2;
            }
        } else {
            // 下移 查询下一条记录的ID
            String perviousOid = personInfoMapper.selectNextSort(personInfo.getSort());
            // 不为1 说明有下一条记录进行交换排序值
            if (!IsValid.YES.getCode().equals(perviousOid)) {
                PersonInfo nextPersonInfo = personInfoMapper.selectById(perviousOid);
                // 将本条记录排序值设为下条
                personInfoMapper.updateSortById(personInfo.getOid(), nextPersonInfo.getSort());

                // 将下条记录排序值设为本条
                personInfoMapper.updateSortById(nextPersonInfo.getOid(), personInfo.getSort());
                return 2;
            }
        }

        return 1;
    }

<!-- 查询上一条记录的ID -->    
<select id="selectPreviousId" resultType="java.lang.String">
        SELECT IFNULL(
        (SELECT OID FROM person_info WHERE sort &lt; #{sort}
        ORDER BY  SORT DESC LIMIT 0,1),1)
    </select>
<!-- 查询下一条记录的ID -->   
    <select id="selectNextSort" resultType="java.lang.String">
        SELECT IFNULL(
        (SELECT OID FROM person_info WHERE sort &gt; #{sort}
        ORDER BY  SORT ASC LIMIT 0,1),1)
    </select>
    <update id="updateSortById">
    update person_info
    set sort = #{sort}
    where OID = #{oid}
    </update>