好的,那很容易。我刚刚使用了q.getSingleResults(),效果很好!
Query q = em.createNativeQuery(sql);BigInteger biid = (BigInteger) q.getSingleResult();long id = biid.longValue();

好的,那很容易。我刚刚使用了q.getSingleResults(),效果很好!
Query q = em.createNativeQuery(sql);BigInteger biid = (BigInteger) q.getSingleResult();long id = biid.longValue();