Hibernate createQuery(.....)的几种不同用法?String category abc//顺便写???//第一种:Query quer
Hibernate createQuery(".....")的几种不同用法
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String category = "abc";//顺便写?
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//第一种: Query query = em.createQuery("from Product as p where p.category = ?1"); query.setParameter(1, category);//第二种: Query query = session.createQuery("from test.Product product whereproduct.category=?"); query.setString(0, category);//第三种: Query query = em.createQuery("from Product as p wherep.category = :category"); query.setParameter("category", category);//第4种: Query query = em.createQuery("select p from Product p where p.id in (:ids)"); query.setParameter("ids", category);