hibernate-hql查询

 ------------------HQL----------------------------------------------------------
{
    Session session = getCurrentSession();
    Query query = session.createQuery("from tableA as a where a.name=: name and a.age =:age");
//如果想执行sql语句，这里需要写成session.creatSQLQuery("sql语句");  
 query.setString("name","Tom");
    query.setInteger("age",20);
    List list = query.list();
当执行list()方法时，Hibernate将执行以下sql语句：
select * from tableA where name="Tom" and age =20;
}

protected Session getCurrentSession(){
   SessionFactory sessionFactory;
   return sessionFactory.getCurrentSession();
 }
============================================================
也可以用方法链的方式访问Query接口,这样会更加简洁
List result = session.createQuery(".......").setString("name","Tom").setInteger("age",20).list();


---------------QBC-----Criteria方法查询-----------------------------------
Criteria criteria = getCurrentSession().createCriteria(persistentClass);
Criterion criterion1=Restrictions.like("name","T%")；
Criterion criterion2=Restrictions.eq("age",new Integer(21))；
criteria.add(criterion1);
criteria.add(criterion2);
List result = criteria.list();