MySQL limit paging formula and total page calculation

MySQL limit paging formula and total page calculation

Limit pagination formula: curPage is the current page; pageSize is the number of records per page

   limit (curPage-1)*pageSize,pageSize

Instance

       // 设置当前页显示的数据集合
        int start = (currentPage - 1) * pageSize;//开始的记录数

        List<Route> list = routeDao.findByPage(cid,start,pageSize,rname);

        pb.setList(list);

Total number of pages = total number of records / number of records displayed per page

 int totalPage = totalCount / pageSize;

Instance

 int totalPage = totalCount / pageSize;
 if(totalCount % pageSize == 0){
    
    
            totalPage = totalCount / pageSize;
        }else{
    
    
            totalPage += 1;
        }