pagedaoimpl.java

java分页 参照别人自己做的 struts1

package page.test.dao.impl;

import java.sql.SQLException;
import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import page.test.dao.PageDao;

public class PageDaoImpl extends HibernateDaoSupport implements PageDao {

	@Override
	public int getAllRowCount(String hql) {
		// TODO Auto-generated method stub
		return getHibernateTemplate().find(hql).size();
	}

	@Override
	public List listForPage(final String hql, final int offset, final int length) {
		// TODO Auto-generated method stub
		HibernateTemplate template = getHibernateTemplate();

		return (List) template.executeFind(new HibernateCallback() {

			@Override
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				// TODO Auto-generated method stub
				Query query = session.createQuery(hql);
				query.setFirstResult(offset);
				query.setMaxResults(length);
				List list = query.list();
				return list;
			}

		});
	}

}