如何用hql只映射一个实体

Question

我有这个代码

    Query query = session.createQuery( "FROM EntA a , EntB s "
            + " WHERE a.idSys = b.idSys "
            + "   AND b.flgE  = :est    "
            + "   AND a.idM   = :idm    "
            + "   AND b.dscNC = :ncs    ");

    query.setParameter("idm", idm);
    query.setParameter("est", "A");
    query.setParameter("ncs", avar);
    // Something here????
    query.setMaxResults(1);
    EntA a=(EntA)query.uniqueResult();

查询有两个实体，我只想获取其中一个实体

可能是这样的：

   query.getEntity("a") or query.getAlias("a")

Answer 1

我想这就是你想要做的

Query query = session.createQuery( "select a FROM EntA a , EntB s "
            + " WHERE a.idSys = b.idSys "
            + "   AND b.flgE  = :est    "
            + "   AND a.idM   = :idm    "
            + "   AND b.dscNC = :ncs    ");

如果这不起作用，请提供一个复制器，让我在我的机器上试试:)

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