java商品采购管理系统控制台程序

package neusoft.controller; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import neusoft.model.Goods; import neusoft.model.User; import neusoft.util.InitData; import neusoft.util.SysUtil; import neusoft.util.InitData; import neusoft.view.SysDisplay; import neusoft.view.SysInput; public class Purchase { public User user; public Map m = new HashMap(); public List typelist = new ArrayList(); public List goodslist = new ArrayList(); public Purchase() { user = InitData.initUserData(); m = InitData.init(); typelist = (List) m.get(InitData.TYPENAME); SysDisplay.show("欢迎使用采购系统\n请按提示操作"); } /** * 登录操作 */ public void purchaseLogin() { String userName = SysInput.readString("请输入用户名:"); String password = SysInput.readString("请输入密码:"); while (true) { if (user.getUserName().equals(userName) && user.getPassword().equals(password)) { break; } else { System.out.println("用户名或密码错误，请重新输入！"); userName = SysInput.readString("请输入用户名:"); password = SysInput.readString("请输入密码:"); } } SysDisplay.show("【" + user.getRealName() + "】登录成功，购物愉快！"); purchaseOperation(); } /** * 商品采购系统整体操作 */ public void purchaseOperation() { System.out.println("商品种类如下："); for (int i = 0; i < typelist.size(); i++) { System.out.println((i + 1) + "、" + typelist.get(i)); goodslist.add(i, (List) m.get(typelist.get(i))); } try { SysDisplay.show(); int type = SysInput.readInt("请选择商品种类：") - 1; selectGoodsType(type); int s = SysInput.readInt("请输入商品购买序号:") - 1; Goods buyGoods = (Goods)((List) goodslist.get(type)).get(s); purchaseGoods(buyGoods,type); } catch (Exception e) { System.out.println("\n请输入正确的序号！！\n"); purchaseOperation(); } } /** * 商品种类查询 * @param type商品种类 */ public void selectGoodsType(int type) { if (type > goodslist.size() - 1 || type < 0) { System.out.println("\n请输入正确的序号！！\n"); purchaseOperation(); } else { List list = new ArrayList(); list = (List) goodslist.get(type); for (int i = 0; i < list.size(); i++) { System.out.println("商品购买序号：" + (i + 1)); System.out.println(list.get(i)); SysDisplay.show(); } } } /** * 购买商品操作 * @param 购买的商品 * @param type 商品类性 */ public void purchaseGoods(Goods buyGoods, int type) { int n = SysInput.readInt("请输入购买数量:"); while (n <= 0) { System.out.println("\n请输入大于0的整数！\n"); n = SysInput.readInt("请输入购买数量:"); } SysDisplay.show(); System.out.println("订单号：" + SysUtil.generateOrderId()); System.out.println("购买方:" + user.getRealName()); System.out.println("商品总数量：" + n); System.out.println("应付总价：" + SysUtil.generateCashFormat(buyGoods.price * n)); System.out.println("生成时间：" + SysUtil.generateSysDate()); System.out.println("购买商品详细信息如下："); SysDisplay.show(); System.out.println(buyGoods); System.out.println(); SysDisplay.show(); System.out.println(); SysDisplay.show("订单已生成，谢谢使用！再见~"); System.exit(0); } }