认为我找到了答案。您必须使用Projection.sqlProjection（）而不是Projections.sum（）。例：
.setProjection(Projections.sqlProjection("sum(cast(amount as signed)* direction) as amntDir", new String[] {"amntDir"} , new Type[] {Hibernate.DOUBLE}));
认为我找到了答案。您必须使用Projection.sqlProjection（）而不是Projections.sum（）。例：
.setProjection(Projections.sqlProjection("sum(cast(amount as signed)* direction) as amntDir", new String[] {"amntDir"} , new Type[] {Hibernate.DOUBLE}));名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
