SSH-基礎篇-Action

package cn.jbit.ssh.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.support.HibernateDaoSupport;


import cn.jbit.ssh.dao.EmpDao;
import cn.jbit.ssh.entity.Emp;


public class EmpDaoImpl extends HibernateDaoSupport implements EmpDao {

/*用hibernate回調方法分頁*/
/*切記！回調函數參數必須是常量！*/
/*new後面的屬於匿名內部類*/
 
public List<Emp> findByPage(final int page, final int size) {

HibernateCallback h = new HibernateCallback() {
public Object doInHibernate(Session session)
throws HibernateException, SQLException {
Query query = session.createQuery("from Emp");
query.setFirstResult((page-1)*size);
query.setMaxResults(size);
return query.list();
}
};

List<Emp> list = getHibernateTemplate().executeFind(h); 
return list;

}


}