hibernate条件查询

//重写了查询方法
	public List queryNews(News news,int startPos,int pageSize) {
		List list=new ArrayList();
		Session session=this.getHibernateTemplate().getSessionFactory().openSession();
		try{
			Criteria criteria=session.createCriteria(News.class);
			if(news!=null){
				//Restrictions.eq 相等
				if(!StringUtil.isNull(news.getTitle())){
					criteria.add(Restrictions.like("title", "%"+news.getTitle()+"%"));
				}
				if(!StringUtil.isNull(news.getAuthor())){
					criteria.add(Restrictions.like("author","%"+ news.getAuthor()+"%"));
				}
			}
			criteria.setFirstResult(startPos);
			criteria.setMaxResults(pageSize);
			list=criteria.list();
			//添加计算总数的代码
			Integer count=(Integer)criteria.setProjection(Projections.count("newsId")).uniqueResult();
		}catch (RuntimeException re) {
			throw re;
		}finally{
			session.close();
		}
		return list;
	}

补充一下Expression已经不被推荐使用了，Restrictions貌似包含了Expression的所有方法，just try。

criteria.add(Restrictions.in("id.fcurr", new String[] { "USD", "GBP", "JPY" } ));

具体方法，请参照http://www.dil.univ-mrs.fr/~massat/docs/hibernate-3.1/api/org/hibernate/criterion/Restrictions.html

其它参照http://hunterk.iteye.com/blog/129065
http://shizukyo.iteye.com/blog/262748
http://hi.baidu.com/yaoming159/blog/item/e0e489cb102ff814be09e6c7.html