basedao.java

网上购物系统struts+spring+hibernate实现

package com.sdi0708.bdifn.bookstore.dao.impl;

import org.hibernate.Session;
import org.hibernate.SessionFactory;

/**
 * 此类是Dao的基类,用来注入sessionFactory,而不必在每个dao都注入
 * 其它的dao实现类都继承于此类
 * @author soft01
 *
 */
public class BaseDao {
	/**
	 * use spring's ioc to inject the sessionFactory
	 */
	private SessionFactory sessionFactory;

	public SessionFactory getSessionFactory() {
		return sessionFactory;
	}

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}
	/**
	 * 打开一个session ,绑定于当前线程.
	 * @return
	 */
	public Session openSession() {
		Session session = sessionFactory.getCurrentSession();
		return session;
	}
}