QBC

 

Criteria

Criterion

Restrictions

Order

Projections

ProjectionList

DetchedCriteria

1.返回一个List

java 代码

public void testQBC(){
    Session session = factory.openSession();
    Criteria criteria = session.createCriteria(User.class);
    List<User> users = criteria.list();
    for(User user : users){
        System.out.println(user.getName());
        System.out.println(user.getAddr());
        System.out.println("----------------------");
    }
}

 

2.加入了限制的查询

java 代码

public void testQBC(){
    Session session = factory.openSession();
    Criteria criteria = session.createCriteria(User.class);
    //加入了姓名的限制
    Criterion criterion1 = Restrictions.eq("name", "linweihan");
    //加如了年龄的限制查询
    Criterion criterion2 = Restrictions.eq("age", 12);
    //然后将2个添加到里面来
    criteria.add(criterion1);
    criteria.add(criterion2);
    List<User> users = criteria.list();
    for(User user : users){
        System.out.println(user.getName());
        System.out.println(user.getAddr());
        System.out.println("----------------------");
    }
}