Java代码购物车和订单模块

package com.yinhe; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; import com.sun.java_cup.internal.shift_action; import com.yinhe.dao.Order; import com.yinhe.model.Goods; public class ShoppingAction extends ActionSupport implements ModelDriven<Goods> { Goods goods=new Goods(); Map<String, Goods> map=new HashMap<String, Goods>();//存放商品，一个唯一id对应一件商品 private Set<Goods> carGoodsList=new HashSet<Goods>();//返回购物车里的所有商品 Order orderDao=new Order(); //得到保存在session范围里面的map Map<String, Goods> getSessionMapList=(Map<String, Goods>) ActionContext.getContext().getSession().get("sessionMapList"); Set<Goods> sessionGoodsList=(Set<Goods>)ActionContext.getContext().getSession().get("sessionGoodsList"); //选购商品加入到购物车 public String addCar() { if(getSessionMapList==null){ map.put(goods.getGid(), goods); ActionContext.getContext().getSession().put("sessionMapList", map);//将添加的键值商品map保存到session中，便于同一商品的计数 carGoodsList.add(map.get(goods.getGid()));//保存该map键对应的商品到购物车 ActionContext.getContext().getSession().put("sessionGoodsList", carGoodsList);//将购物车商品保存到session中，便于统计本次购物商品种类 return "addCarOK"; }else{ if(getSessionMapList.containsKey(goods.getGid())){ getSessionMapList.get(goods.getGid()).setCount(getSessionMapList.get(goods.getGid()).getCount()+1); getSessionMapList.get(goods.getGid()).setSigleTotal(getSessionMapList.get(goods.getGid()).getSigleTotal()+goods.getGprice()); ActionContext.getContext().getSession().put("sessionMapList", getSessionMapList);//将添加的键值商品map保存到session中，便于同一商品的计数 sessionGoodsList.add(getSessionMapList.get(goods.getGid()));//保存修改后,该map键对应的商品到session范围中 carGoodsList.addAll(sessionGoodsList);//将更改后的session中所有的goods集合再次存入购物车 ActionContext.getContext().getSession().put("sessionGoodsList", carGoodsList);//将购物车商品保存到session中，便于统计本次购物商品种类 return "addCarOK"; }else{ getSessionMapList.put(goods.getGid(), goods); ActionContext.getContext().getSession().put("sessionMapList", getSessionMapList);//将添加的键值商品map保存到session中，便于同一商品的计数 sessionGoodsList.add(goods); carGoodsList.addAll(sessionGoodsList);//将更改后的session中所有的goods集合再次存入购物车 ActionContext.getContext().getSession().put("sessionGoodsList", carGoodsList);//将购物车商品保存到session中，便于统计本次购物商品种类 return "addCarOK"; } } } //删除购物车中的商品 public String delCar() { getSessionMapList.remove(goods.getGid()); ActionContext.getContext().getSession().put("sessionMapList", getSessionMapList); sessionGoodsList.remove(goods); carGoodsList.addAll(sessionGoodsList); ActionContext.getContext().getSession().put("sessionGoodsList", carGoodsList);//将购物车商品保存到session中，便于统计本次购物商品种类 return "delCarOK"; } //修改购物车中的商品数量 public String updateCar(){ System.out.println(goods.getGid()+"\t"+goods.getCount()); getSessionMapList.get(goods.getGid()).setCount(goods.getCount()); getSessionMapList.get(goods.getGid()).setSigleTotal(goods.getCount()*goods.getGprice()); ActionContext.getContext().getSession().put("sessionMapList", getSessionMapList);//将添加的键值商品map保存到session中，便于同一商品的计数 sessionGoodsList.add(getSessionMapList.get(goods.getGid()));//保存修改后,该map键对应的商品到session范围中 carGoodsList.addAll(sessionGoodsList);//将更改后的session中所有的goods集合再次存入购物车 ActionContext.getContext().getSession().put("sessionGoodsList", carGoodsList);//将购物车商品保存到session中，便于统计本次购物商品种类 return "updateCarOK"; } //下单准备购买 public String order() { int totalMony=0; Iterator<Goods> allgs=sessionGoodsList.iterator(); while (allgs.hasNext()) { Goods elemGoods = (Goods)allgs.next(); totalMony+=elemGoods.getSigleTotal(); } ActionContext.getContext().getSession().put("totalMony", totalMony); carGoodsList=sessionGoodsList; return "confirmOrder"; } //下单 public String confirmOrder() { Iterator<Goods> allgs=sessionGoodsList.iterator(); while (allgs.hasNext()) { Goods elemGoods = (Goods)allgs.next(); orderDao.order(elemGoods); } ActionContext.getContext().put("orderNO", "您的订单号是:"+System.currentTimeMillis()); return "orderOk"; } public Goods getModel() { // TODO Auto-generated method stub return goods; } public Map<String, Goods> getMap() { return map; } public void setMap(Map<String, Goods> map) { this.map = map; } public Set<Goods> getCarGoodsList() { return carGoodsList; } public void setCarGoodsList(Set<Goods> carGoodsList) { this.carGoodsList = carGoodsList; } }