[color=darkred]DetachedCriteria criteria = DetachedCriteria.forClass/color
criteria.setProjection(Projections.projectionList()
.add(Property.forName("id"))
.add(Projections.groupProperty("username"))
.add(Property.forName("incometime"))
.add(Projections.sum("submoney")));
[color=darkred]若在sum("submoney")的基础上附加一个“除以30”的筛选条件该如何写?[/color]