订货系统 Hibernate+struts 开发的

package action; import java.util.*; import com.opensymphony.xwork2.ActionSupport; import dao.*; import daoImpl.*; import entity.*; @SuppressWarnings("serial") public class OrdersAction extends ActionSupport { private Orders order; private Integer[] gids; private Integer oid; private Integer[] amounts; private double totalprice; private List<Goods> goods = new ArrayList<Goods>(); private String message; GoodsDao dao = new GoodsDaoImpl(); OrdersDao ordersDao = new OrdersDaoImpl(); DetailDao detailDao = new DetailDaoImpl(); /** * 添加订单 * @return */ public String preOrder(){ for(Integer gid:gids){ goods.add(dao.findById(gid)); } return SUCCESS; } /** * 显示订单信息 * @return */ public String order(){ int length = gids.length; //设定订购商品的数量 for(int i=0;i<length;i++){ Detail detail = new Detail(); Goods goods = dao.findById(gids[i]); detail.setAmount(amounts[i]); detail.setOrders(order); detail.setGoods(goods); order.getDetail().add(detail); } Date date = new Date(); order.setCreateTime(date); ordersDao.save(order); Integer id = order.getId(); //获取订单的内容 order = ordersDao.findById(id); //获取订购的商品 for(Integer gid:gids){ goods.add(dao.findById(gid)); } totalprice = this.getTotalPriceByOrders(order); return SUCCESS; } //计算订单总金额 private double getTotalPriceByOrders(Orders order){ double total = 0.0; for(Detail detail:order.getDetail()){ total += detail.getAmount() * detail.getGoods().getPrice(); } return total; } //查询订单 public String findById(){ if(!ordersDao.geOrdersById(oid)){ this.setMessage("订单不存在"); return INPUT; } order = ordersDao.findById(oid); totalprice = this.getTotalPriceByOrders(order); return SUCCESS; } public Orders getOrder() { return order; } public void setOrder(Orders order) { this.order = order; } public Integer[] getGids() { return gids; } public void setGids(Integer[] gids) { this.gids = gids; } public Integer getOid() { return oid; } public void setOid(Integer oid) { this.oid = oid; } public Integer[] getAmounts() { return amounts; } public void setAmounts(Integer[] amounts) { this.amounts = amounts; } public double getTotalprice() { return totalprice; } public void setTotalprice(double totalprice) { this.totalprice = totalprice; } public List<Goods> getGoods() { return goods; } public void setGoods(List<Goods> goods) { this.goods = goods; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } }