springboot2.4.5使用pagehelper分页插件

<dependency>
  <groupId>com.github.pagehelper</groupId>
  <artifactId>pagehelper-spring-boot-starter</artifactId>
  <version>1.4.1</version>-->
</dependency>

@Override
    public AjaxResult selectPageList(Integer currentPage, Integer pageSize) {
        //增加PageHelper
        PageHelper.startPage(currentPage,pageSize);
        List<SysDept> sysDepts = sysDeptMapper.selectPageList();
         //增加PageInfo
        PageInfo<SysDept> info=new PageInfo<>(sysDepts);
        return AjaxResult.success(info);
    }

{
    "msg": "操作成功",
    "code": 200,
    "data": {
        "endRow": "2",
        "hasNextPage": true,
        "hasPreviousPage": true,
        "isFirstPage": false,
        "isLastPage": false,
        "list": [
            {
                "createBy": "demoData",
                "createTime": "2021-07-03 09:15:57",
                "deptName": "demoData",
                "depth": "demoData",
                "id": "2",
                "leaderId": "demoData",
                "level": 1,
                "parentId": 2,
                "updateBy": "demoData",
                "updateTime": "2021-07-03 09:17:40"
            }
        ],
        "navigateFirstPage": 1,
        "navigateLastPage": 3,
        "navigatePages": 8,
        "navigatepageNums": [
            1,
            2,
            3
        ],
        "nextPage": 3,
        "pageNum": 2,
        "pageSize": 1,
        "pages": 3,
        "prePage": 1,
        "size": 1,
        "startRow": "2",
        "total": "3"
    }
}