test1.java

分别用jdbc和hibernate写的银行管理系统。可以发现什么时候用jdbc

package com.tarena.ebank.view;

import org.hibernate.HibernateException;
import org.hibernate.Session;

import com.tarena.ebank.biz.entity.Account;
import com.tarena.ebank.biz.entity.User;
import com.tarena.ebank.persist.HbnUtil;

public class Test1 {

	public static void main(String[] args) {
		User u = new User("u-001", "Mike");
		Account a = new Account("act-001", 3000.0);
		u.setAct(a);
		Session s = null;
		try {
			s = HbnUtil.getSessionFactory().openSession();
			s.beginTransaction();
			s.save(u);
			s.getTransaction().commit();
		} catch (HibernateException e) {
			e.printStackTrace();
			s.getTransaction().rollback();
		} finally {
			s.close();
			HbnUtil.release();
		}

	}

}