java基础购物管理系统

package come.u1.limingxing.shopping.imp; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Scanner; import come.u1.limingxing.shopping.bean.Customers; import come.u1.limingxing.shopping.bean.Goods; import come.u1.limingxing.shopping.bean.ImportantCustomers; import come.u1.limingxing.shopping.bean.User; import come.u1.limingxing.shopping.factory.CustomersFactory; import come.u1.limingxing.shopping.factory.NewgoodswriteXml; import come.u1.limingxing.shopping.io.IAdmin; import come.u1.limingxing.shopping.io.Userio; import come.u1.limingxing.shopping.readxml.ReadXml; import come.u1.limingxing.shopping.writexml.Writexml; public class Userimp implements Userio { // 总金额 private float impnum = 0; public float getImpnum() { return impnum; } public void setImpnum(float impnum) { this.impnum = impnum; } @Override public void scan(int id) throws Exception { // TODO Auto-generated method stub IAdmin iadmin = new IAdminimp(); List<Goods> goods = iadmin.show(); Goods good = null; Boolean flag = false; int yuancount = 0; for (int i = 0; i < goods.size(); i++) { // 判断商品中是否由此商品 if (id == goods.get(i).getId()) { good = goods.get(i); yuancount = good.getCount(); Iterator<Goods> it = Userio.GOODS.values().iterator(); flag = true; if (Userio.GOODS.isEmpty()) { // 订单中无商品 // 如果订单中没有此商品则添加此商品 good.setCount(1); Userio.GOODS.put(good.getCount() * good.getPrice(), good); System.out.println(good + "金额:" + good.getCount() * good.getPrice()); // 修改原商品数量 NewgoodswriteXml.newgoodswritexml(id, yuancount); break; } else { while (it.hasNext()) { Goods g = it.next(); if (g.getId() == id) { // 如果订单中有商品 // 判断订单中的商品数量是否大于商品中的数量 if (g.getCount() < yuancount) { g.setCount(g.getCount() + 1); System.out.println(g + "金额:" + g.getCount() * g.getPrice()); // 修改原商品 NewgoodswriteXml .newgoodswritexml(id, yuancount); } else { System.out.println("库存中已无，无法扫描"); } break; } else { // 如果订单中没有此商品则添加此商品 good.setCount(1); Userio.GOODS.put(good.getCount() * good.getPrice(), good); System.out.println(g + "金额:" + g.getCount() * g.getPrice()); // 修改原商品 NewgoodswriteXml.newgoodswritexml(id, yuancount); break; } } break; } } else { flag = false; } } if (flag == false) System.out.println("对不起没有此商品,扫描失败"); else { System.out.println("扫描成功"); System.out.println("原商品中的数量已修改"); } } @Override public void modify(int id) throws Exception { // TODO Auto-generated method stub Scanner in = new Scanner(System.in); Goods good = null; IAdmin iadmin = new IAdminimp(); // 原商品集合 List<Goods> oldgoods = iadmin.show(); int yuancount = 0; for (int i = 0; i < oldgoods.size(); i++) { if (id == oldgoods.get(i).getId()) { yuancount = oldgoods.get(i).getCount(); break; } } // 订单中商品迭代 Iterator<Goods> it = Userio.GOODS.values().iterator(); boolean flag = false; while (it.hasNext()) { good = it.next(); if (id == good.getId()) { flag = true; System.out.println("请输入修改数量"); int count = in.nextInt(); if (count <= yuancount) { good.setCount(count); System.out.println(good + "金额" + good.getCount() * good.getPrice()); // 修改原商品 List<Goods> newgoods04 = new ArrayList<Goods>(); for (int j = 0; j < oldgoods.size(); j++) { if (id == oldgoods.get(j).getId()) { good = oldgoods.get(j); good.setCount(yuancount - count); newgoods04.add(good); continue; } newgoods04.add(oldgoods.get(j)); } // 写入xml Writexml.writegoods(newgoods04); System.out.println("原商品中的数量已修改"); } else { System.out.println("库存不足无法修改数量"); System.out.println("请重新输入要扫描的商品编号"); int idd = in.nextInt(); this.modify(idd); } break; } else { flag = false; } } if (flag == false) { System.out.println("没有扫描此商品"); Scanner inn = new Scanner(System.in); System.out.println("请输入要扫描的商品编号"); int idd = inn.nextInt(); this.scan(idd); } } @Override public void calc() throws Exception { // TODO Auto-generated method stub this.print(); if (this.impnum == 0) { System.out.println("您还没有扫描商品"); } else { System.out.println("1、普通账户 2、会员账户"); Scanner in = new Scanner(System.in); int a = in.nextInt(); String classname = "come.u1.limingxing.shopping.bean."; switch (a) { case 1: classname += "Customers"; break; case 2: classname += "ImportantCustomers"; break; } Customers c = CustomersFactory.getcustomers(classname); c.setNum(this.impnum); if (c instanceof ImportantCustomers) { System.out.println("请输入卡号"); String imcustomersname = in.next(); ImportantCustomers i = ReadXml .readimpcustomers(imcustomersname); if (i == null) { System.out.println("卡号不正确"); } else { String impname = i.getImpcustomersname(); float balance = 0; System.out.println("请输入金额"); float money = in.nextFloat(); if (money >= c.getNum()) { // 找零 balance = money - c.getNum(); // 修改会员积分 int jifen = 10; // 得到之前的积分 int lastjifen = i.getIntegral(); // 修改积分 ((ImportantCustomers) c).setIntegral(lastjifen + jifen); // 打印 System.out.println("票以打印"); FileWriter fw = new FileWriter("会员票" + new Date().getTime() + ".txt"); fw.write(" 会员超市 "); fw.write("\r\n"); fw.write("收银员号：1001"); fw.write("\r\n"); fw.write("小票号：34646747963"); fw.write("\r\n"); Iterator<Goods> i1 = Userio.GOODS.values().iterator(); Goods good = null; int discount = 0; while (i1.hasNext()) { good = i1.next(); fw.write(good.toString() + "金额：" + good.getCount() * good.getPrice()); discount += good.getCount(); } fw.write("\r\n"); fw.write("总数量：" + discount); fw.write("\r\t\t"); fw.write("应收:" + c.getNum()); fw.write("\r\n"); fw.write("实收:" + money); fw.write("\r\t\t"); fw.write("找零:" + balance); fw.write("\r\n"); fw.write("本次累计成功 卡号：" + imcustomersname); fw.write("\r\n"); String st = String.format( "消费前积分：%d+本次消费积分：%d=消费后积分：%d", lastjifen, jifen, ((ImportantCustomers) c).getIntegral()); fw.write(st); fw.write("\r\n"); SimpleDateFormat str = new SimpleDateFormat( "yyyy年MM月dd日 HH:mm:ss"); String date = str.format(new Date()); fw.write(date); fw.write("\r\n"); fw.write("次小票是您退换及核对积分的凭证，请妥善保管"); fw.write("\r\n"); fw.write("=============================="); fw.close(); // 重写xml System.out.println("卡号的积分已修改"); Writexml.writeimpcustomers(((ImportantCustomers) c) .getIntegral()); // 清空 Userio.GOODS.clear(); } else {