QBC(Query By Criteria) QBE (Query By Example)

QBC  参考：(Hibernate的QBC查询)

    //is empty and is not empty
    @Test
    public void testQBC(){
        Session session = sf.getCurrentSession();
        session.beginTransaction();
        //criterion 标准/准则/规范
        Criteria c = session.createCriteria(Topic.class)//from Topic
                .add(Restrictions.gt("id", 2))    //greater than = id > 2
                .add(Restrictions.lt("id", 8))    //less than = id < 8
                .add(Restrictions.like("title", "t_"))
                .createCriteria("category")
                .add(Restrictions.between("id", 0, 5)) //category.id >= 0 and category.id <= 5
                ;
        //DetachedCriteria
 
        for(Object o : c.list()){
            Topic t = (Topic)o;
            System.out.println(t.getId() + "-" + t.getTitle() );
        }
        session.getTransaction().commit();
    }

QBE   参考：(hibernate的QBE和QBC) 和 (Hibernate 查询方式(HQL/QBC/QBE)汇总)

     //is empty and is not empty
     //QBC Query By Criteria
     //QBE Query By Example
     @Test
     public void testQBE(){
         Session session = sf.getCurrentSession();
         session.beginTransaction();
 
         Topic tExample = new Topic();
         tExample.setTitle("T_");
         Example e = Example.create(tExample)
                 .ignoreCase().enableLike();//构建 example
 
         Criteria c = session.createCriteria(Topic.class)
                 .add(Restrictions.gt("id", 3))
                 .add(Restrictions.lt("id", 8))
                 .add(e)
                 ;
 
         for(Object o : c.list()){
             Topic t = (Topic)o;
             System.out.println(t.getId() + "-" + t.getTitle() );
         }
         session.getTransaction().commit();
     }

jar包链接: https://pan.baidu.com/s/1kVbVPmZ 密码: 384f

QBC链接: https://pan.baidu.com/s/1dFEHIYt 密码: nfms

QBE链接: https://pan.baidu.com/s/1i4JJa0d 密码: 2zby