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//初始化变量
PagedResult<OrgDepartmentCustom> pagedResult = null;
//开启分页
PagedResultHelper.startPage();//这句话必须写在orgDepartmentList 上面，否则不起作用
List<OrgDepartment> orgDepartmentList = orgDepartmentMapper.selectListByQuery(orgDepartmentQuery);
//强制转换
pagedResult = (PagedResult) orgDepartmentList;
pagedResult.setList(departmentlist);
pagedResult.clear();
pagedResult.addAll(departmentlist);
这样pagedResult是包含list的分页