Struts2-ShoppingCar

package com.yinhe.shoppingCar.action; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; import com.yinhe.shoppingCar.dao.BuyGoodsCar; import com.yinhe.shoppingCar.dao.OrdersBo; import com.yinhe.shoppingCar.dao.ParticularOrderBo; import com.yinhe.shoppingCar.tool.Time; import com.yinhe.shoppingCar.vo.GoodsVo; import com.yinhe.shoppingCar.vo.OrdersVo; import com.yinhe.shoppingCar.vo.ParticularOrderVo; import com.yinhe.shoppingCar.vo.UserVo; public class OrderAction extends ActionSupport{ private static final long serialVersionUID = 1L; private OrdersBo ob ; // 对简单信息的操作类 private ParticularOrderBo pob;//对详细信息的操作类 private HttpServletRequest request ; private HttpSession session; private ArrayList<GoodsVo> buyGoodsList;//用户购买所购买的商品集合 private int ordersId; //接收由上一个界面传来的订单ID @SuppressWarnings("unchecked") public OrderAction(){ ob = new OrdersBo(); pob = new ParticularOrderBo(); request = ServletActionContext.getRequest(); session = request.getSession(); buyGoodsList = (ArrayList<GoodsVo>)session.getAttribute("buyGoodsList"); } //成员属性的get和set方法 public int getOrdersId() { return ordersId; } public void setOrdersId(int ordersId) { this.ordersId = ordersId; } //返回配置信息 //添加订单 public String addOrders(){ String message = this.writeOrders(this.getBuyGoodsMap()); String[] showMessage = this.getShowMessage(); request.setAttribute("showMessage", showMessage); request.setAttribute("message", message); return SUCCESS; } //显示订单 public String showOrders(){ String[] showMessage = this.getShowMessage(); request.setAttribute("showMessage", showMessage); return SUCCESS; } //显示详细订单 public String showParticularOrders(){ ArrayList<String[]> particularMessages = this.getParticularMessage(buyGoodsList.size(),this.getBuyGoodsMap()); // this.getParticularMessage(pob.getNumById(ordersId),this.getBuyGoodsMap()); request.setAttribute("particularMessages", particularMessages); return SUCCESS; } //安全退出时的操作 public String clearGoods(){ HashMap<Integer,Integer> carMessage = this.getBuyGoodsMap(); if(carMessage != null){ this.getBuyGoodsMap().clear(); } session.setAttribute("buyGoodsList", null); session.setAttribute("user", null); session.setAttribute("selectOk", null); return SUCCESS; } //获取当前用户的对象 private UserVo getCurrentUser(){ return (UserVo)session.getAttribute("user"); } //获取购物车中的map信息 private HashMap<Integer,Integer> getBuyGoodsMap(){ BuyGoodsCar car = (BuyGoodsCar)session.getAttribute("car"); if(car != null){ return (HashMap<Integer, Integer>) car.getBuyGoodsCar(); } return null; } //设置订单页面显示的信息 private String[] getShowMessage(){ UserVo currentUser = this.getCurrentUser(); double totalPrice = (Double)session.getAttribute("totalPrice"); String[] message = new String[6]; message[0]=ob.getMaxId()+""; message[1]=Time.getSystemTime(); message[2]=currentUser.getUserName(); message[3]=currentUser.getUserEmail(); message[4]=currentUser.getUserAddress(); message[5]=(totalPrice/10000)+"万元"; return message; } //将用户的购买物品添加到数据库中,分简略的添加和详细的添加 private String writeOrders(HashMap<Integer,Integer> buyNumList){ int check = 0; //添加简略的数据到数据库 int ordersId = ob.getMaxId()+1; double totalPrice = (Double)session.getAttribute("totalPrice"); OrdersVo orders = new OrdersVo(ordersId, this.getCurrentUser().getUserId(), Time.getSystemTime(), totalPrice); ob.addOrders(orders); // 添加详细的数据到数据库 ParticularOrderVo p_order = null; Iterator<Integer> it = buyNumList.keySet().iterator(); int n = 0; while(it.hasNext()){ int goodsId = (Integer) it.next(); int goodsNum = (Integer)buyNumList.get(goodsId); double partTotal = goodsNum*buyGoodsList.get(n).getGoodsPrice(); n++; p_order = new ParticularOrderVo(ordersId, goodsId, goodsNum, partTotal); if(pob.addParticularOrders(p_order)){ check++; } } if(check==buyNumList.size()) return "添加完成"; else return "添加不完整"; } //获取订单的详细信息 private ArrayList<String[]> getParticularMessage(int num,HashMap<Integer,Integer> buyNumList){ ArrayList<String[]> particularMessages = new ArrayList<String[]>(); String[] message = null; for (int i = 0; i < num; i++) { int goodsId = buyGoodsList.get(i).getGoodsId(); double price = buyGoodsList.get(i).getGoodsPrice(); int goodsNum = buyNumList.get(goodsId); message = new String[5]; message[0]=goodsId+""; message[1]=buyGoodsList.get(i).getGoodsName(); message[2]=price+"元"; message[3]=goodsNum+""; message[4]=price*goodsNum+""; // System.out.println(price*goodsNum); particularMessages.add(message); } return (ArrayList<String[]>)particularMessages; } }