aop.AopInvocationException: null return value from advice does not match primitive return type for

在用hibernate进行查询的时候，发生了如下异常： aop.AopInvocationException: null return value from advice does not match primitive return type for

here is the DAO interface: @Query(value = “SELECT indexed FROM “+ GlobalConsts.INTELLIF_STATIC + “.” +GlobalConsts.T_NAME_OTHER_DETAIL +” WHERE id = :id”, nativeQuery = true) int findLast(@Param(“id”)long id);

如果该id在数据库中不存在，就会返回null，报出异常。 这里可以让返回的值变为包装类，它仅仅只会返回null，而不会报异常。 @Query(value = “SELECT indexed FROM “+ GlobalConsts.INTELLIF_STATIC + “.” +GlobalConsts.T_NAME_OTHER_DETAIL +” WHERE id = :id”, nativeQuery = true) Integer findLast(@Param(“id”)long id);