accountdaohbnimpl.java

加拿大达内科技有限公司配需java程序员的上课时的代码

package com.csd080111.bank.persistent;

/*
 * 数据类
 * 实现IAccountDAO 里的全部方法
 * 方法：1、插入数据 2、删除数据 3、更新数据 4、查找数据
 */
import org.hibernate.HibernateException;
import org.hibernate.Session;

import com.csd080111.bank.biz.entity.Account;

public class AccountDAOHbnImpl implements IAccountDAO {

	/* 删除数据 */
	public void delete(String actNo, Session s) throws DataException {
		try {
			Account a = findByActNo(actNo, s);
			s.delete(a);
		} catch (HibernateException e) {
			e.printStackTrace();
			throw new DataException("delete error");
		}
	}

	/* 查找数据 */
	public Account findByActNo(String actNo, Session s) throws DataException {
		Account a = null;
		String hql = "from Account a where a.actNo=?";
		try {
			a = (Account) s.createQuery(hql).setString(0, actNo).uniqueResult();
		} catch (HibernateException e) {
			e.printStackTrace();
			throw new DataException("find error");
		}
		return a;
	}

	/* 插入数据 */
	public void insert(Account act, Session s) throws DataException {
		try {
			Account a = null;
			s.save(act);
		} catch (HibernateException e) {
			e.printStackTrace();
			throw new DataException("insert error");
		}

	}

	/* 更新数据 */
	public void update(Account act, Session s) throws DataException {
		try {
			s.update(act);
		} catch (HibernateException e) {
			e.printStackTrace();
			throw new DataException("update error");
		}

	}

}