yonghuserviceimpl.java

自己写的一个java购销系统

package com.yuanjin.mtgx.service.impl;

import java.util.List;

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

import com.yuanjin.mtgx.dao.YongHuDAO;
import com.yuanjin.mtgx.dao.impl.YongHuDAOImpl;
import com.yuanjin.mtgx.entity.YongHu;
import com.yuanjin.mtgx.service.YongHuService;
import com.yuanjin.mtgx.util.HbnUtil;

public class YongHuServiceImpl implements YongHuService {
	
	private YongHuDAO dao=new YongHuDAOImpl();

	public boolean addYongHu(YongHu yh) {
		// TODO Auto-generated method stub
		Session session=null;
		Transaction tran=null;
		boolean success=false;
		try {
			session=HbnUtil.getCurrentSession();
			tran=session.beginTransaction();
			dao.save(yh);
			tran.commit();
			success=true;
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			tran.rollback();
			e.printStackTrace();
		}
		return success;
	}

	public boolean deleteYongHu(YongHu yh) {
		// TODO Auto-generated method stub
		Session session=null;
		Transaction tran=null;
		boolean success=false;
		try {
			session=HbnUtil.getCurrentSession();
			tran=session.beginTransaction();
			dao.delete(yh);
			tran.commit();
			success=true;
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			tran.rollback();
			e.printStackTrace();
		}
		return success;
	}

	public List findAllYongHu() {
		// TODO Auto-generated method stub
		Session session=null;
		Transaction tran=null;
		List list=null;
		try {
			session=HbnUtil.getCurrentSession();
			tran=session.beginTransaction();
			list=dao.findALL();
			tran.commit();
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			tran.rollback();
			e.printStackTrace();
		}
		return list;
	}

	public YongHu findYongHuByNo(String yhbh) {
		// TODO Auto-generated method stub
		Session session=null;
		Transaction tran=null;
		YongHu yh=null;
		try {
			session=HbnUtil.getCurrentSession();
			tran=session.beginTransaction();
			yh=dao.findByNo(yhbh);
			tran.commit();
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			tran.rollback();
			e.printStackTrace();
		}
		return yh;
	}

	public boolean modifyYongHu(YongHu yh) {
		// TODO Auto-generated method stub
		Session session=null;
		Transaction tran=null;
		boolean success=false;
		try {
			session=HbnUtil.getCurrentSession();
			tran=session.beginTransaction();
			dao.update(yh);
			tran.commit();
			success=true;
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			tran.rollback();
			e.printStackTrace();
		}
		return success;
	}

}