java 自定义分页对象

前言

自定义分页对象

代码实现

import java.util.List;
/** * * @Title: PagedGridResult.java * @Description: 用来返回分页Grid的数据格式 */
public class PagedGridResult { 
    private int page;            // 当前页数
    private int total;            // 总页数 
    private long records;        // 总记录数
    private List<?> rows;        // 每行显示的内容
    public int getPage() { 
        return page;
    }
    public void setPage(int page) { 
        this.page = page;
    }
    public int getTotal() { 
        return total;
    }
    public void setTotal(int total) { 
        this.total = total;
    }
    public long getRecords() { 
        return records;
    }
    public void setRecords(long records) { 
        this.records = records;
    }
    public List<?> getRows() { 
        return rows;
    }
    public void setRows(List<?> rows) { 
        this.rows = rows;
    }
}

具体使用：

@Transactional(propagation = Propagation.SUPPORTS)
    @Override
    public PagedGridResult queryPagedComments(String itemId,
                                                  Integer level,
                                                  Integer page,
                                                  Integer pageSize) { 
        Map<String, Object> map = new HashMap<>();
        map.put("itemId", itemId);
        map.put("level", level);
        // mybatis-pagehelper
        /** * page: 第几页 * pageSize: 每页显示条数 */
        PageHelper.startPage(page, pageSize);
        List<ItemCommentVO> list = itemsMapperCustom.queryItemComments(map);
        for (ItemCommentVO vo : list) { 
            vo.setNickname(DesensitizationUtil.commonDisplay(vo.getNickname()));
        }
        return setterPagedGrid(list, page);
    }
    private PagedGridResult setterPagedGrid(List<?> list, Integer page) { 
        PageInfo<?> pageList = new PageInfo<>(list);
        PagedGridResult grid = new PagedGridResult();
        grid.setPage(page);
        grid.setRows(list);
        grid.setTotal(pageList.getPages());
        grid.setRecords(pageList.getTotal());
        return grid;
    }