userdaoimpl.java

采用最新Struts2+Hibernate架构开发

package org.itfuture.www.dao.impl;

import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

import org.itfuture.www.dao.UserDao;
import org.itfuture.www.po.Account;
import org.itfuture.www.po.Item;
import org.itfuture.www.po.Lineitem;
import org.itfuture.www.po.LineitemId;
import org.itfuture.www.po.Orders;
import org.itfuture.www.po.Orderstatus;
import org.itfuture.www.po.Profile;
import org.itfuture.www.po.Signon;
import org.itfuture.www.service.impl.CarImpl;
import org.itfuture.www.vo.Car;

import www.hibernate.util.method.DaoSupport;

//该类是一个实现类
public class UserDaoImpl extends DaoSupport implements UserDao {
	// 用于校验用户名，密码
	public Signon checkOut(String name, String password) {
		String hql = "from Signon A where A.username=? and A.password=?";
		List<Signon> list = this.getHibernateTemplate().query(hql,
				new String[] { name, password });
		return list.get(0);
	}

	// 注册新用户
	public boolean regist(Signon signon, Account account, Profile profile) {
		account.setSignon(signon);
		profile.setSignon(signon);
		signon.setAccount(account);
		signon.setProfile(profile);
		boolean is = false;
		this.getHibernateTemplate().save(signon);
		is = true;
		return is;
	}

	// 生成订单信息数据，存入数据库
	public boolean addOrder(Orders order, Signon signon) {
		order.setOrderdate(new Date());
		CarImpl ci = new CarImpl();
		order.setOrderid(Long.parseLong(this.getValue()));
		order.setTotalprice(ci.totalPrice());

		String hql = "from Account A where A.userid=?";
		List<Account> list = this.getHibernateTemplate().query(hql,
				new String[] { signon.getUserid() });
		order.setAccount(list.get(0));
		Iterator<Car> iter = CarImpl.map.values().iterator();
		boolean is = false;

		Orderstatus os = new Orderstatus(order, new Date(), "1");
		order.setOrderstatus(os);
		Set set = new TreeSet();
		while (iter.hasNext()) {
			Car car = iter.next();
			Item item = car.getItem();
			LineitemId id = new LineitemId(order, Long.parseLong(this
					.getValue()));
			Lineitem li = new Lineitem();
			li.setId(id);
			li.setItem(item);
			li.setListprice(item.getListprice());
			li.setQuantity((long) car.getQuantity());
			order.getLineitems().add(li);
		}
		this.getHibernateTemplate().save(order);
		is = true;
		return is;
	}

	// 得到一个序列号，当作商品编号
	public String getValue() {
		String hql = "select HIBERNATE_SEQUENCE.Nextval from dual";
		return this.getHibernateTemplate().openSession().createSQLQuery(hql)
				.list().get(0).toString();
	}
}