sessionfactorytest.java

hibernate实体映射.实体设计(两种方案),很简单的代码

package org.hibernate.demo02;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

/**
 * 这个程序演示实体层设计
 * 
 * @author Administrator
 * 
 */
public class SessionFactoryTest {

	private Session session;

	public SessionFactoryTest() {

		Configuration config = new Configuration().configure();

		SessionFactory factory = config.buildSessionFactory();

		this.session = factory.openSession();
	}

	public void insert(BookMain2 book) {
		Transaction tans = this.session.beginTransaction();

		this.session.save(book);

		tans.commit();

	}
/**
 * 这是按id查出所有的数据
 * @return
 */
	@SuppressWarnings("unchecked")
	public List FindById(String id) {
		String hql = "from BookMain as b where b.id=?";

		Query q = this.session.createQuery(hql);
		
		q.setString(0, id);
		
		List l=q.list();

		return l;

	}
}