java项目实战-超市管理系统（三）页面设计源码

一、duan.page.MainPage

package duan.page;import java.util.ArrayList;import duan.dao.GoodsDao;import duan.dao.GsalesDao;import duan.dao.SalesManDao;import duan.entity.Goods;import duan.entity.Gsales;import duan.entity.SalesMan;import duan.tools.Arith;import duan.tools.QueryPrint;import duan.tools.ScannerChoice;/*** 商超购物管理系统主界面 * @author duan* @version 2.0*/public final class MainPage extends ScannerChoice{/*** 入口函数*/public static void main(String[] args){MainPage.mainPage();}/*** 主界面 已实现！已校验！*/public static void mainPage(){System.out.println("***************************\n");System.out.println("\t 1.商品维护\n");System.out.println("\t 2.前台收银\n");System.out.println("\t 3.商品管理\n");System.out.println("***************************");System.out.println("\n请输入选项,或者按0退出.");do{String choice = ScannerInfoString();String regex = "[0-3]";//正则表达式if (choice.matches(regex)){ int info = Integer.parseInt(choice);switch (info){case 0:System.out.println("------------------");System.out.println("您已经退出系统!");System.exit(1);//退出程序，返回值随便设置break;case 1:MaintenancePage();break;case 2:checkstandLogPage();break;case 3:commodityManagementPage();break;default:break;}}System.err.println("!输入有误!");System.out.println("重新选择或者按0退出.");} while (true);}/*** 1.商品维护界面*/public static void MaintenancePage(){System.out.println("***************************\n");System.out.println("\t 1.添加商品\n");System.out.println("\t 2.更改商品\n");System.out.println("\t 3.删除商品\n");System.out.println("\t 4.查询商品\n");System.out.println("\t 5.显示所有商品\n");System.out.println("***************************");System.out.println("\n请输入选项,或者按 0 返回上一级菜单.");do{String choice = ScannerInfoString();String regex = "[0-5]";if (choice.matches(regex)){int info = Integer.parseInt(choice);switch (info){case 0:mainPage();break;case 1:GoodsPage.addGoodsPage();break;case 2:GoodsPage.updateGoodsPage();break;case 3:GoodsPage.deleteGoodsPage();break;case 4:GoodsPage.queryGoodsPage();break;case 5:GoodsPage.displayGoodsPage();break;default:break;}}System.err.println("!输入有误!");System.out.println("重新输入或按 0 返回上一级菜单.");}while(true);}/*** 2.前台收银登陆界面*/public static void checkstandLogPage(){System.out.println("\n*******欢迎使用商超购物管理系统*******\n");System.out.println("\t 1.登录系统\n");System.out.println("\t 2.退出\n");System.out.println("-----------------------------");System.out.println("请输入选项,或者按 0 返回上一级菜单.");do{String choice = ScannerInfoString();String regex = "[0-2]";if (choice.matches(regex)){int info = Integer.parseInt(choice);switch (info){case 0:mainPage();break;case 1:int loginTimes = 3;//3次登陆机会while (loginTimes!=0){loginTimes--;System.out.println("---用户名---");String sName = ScannerInfoString();System.out.println("---密码---");String sPssWord = ScannerInfoString();ArrayList<SalesMan> salesManInfo = new SalesManDao().checkstandLog(sName); //以用户名从数据库中获取用户密码.if (salesManInfo == null || salesManInfo.size() == 0)//没有此用户的情况！{System.err.println("\t!!用户名输入有误!!\n");System.out.println("\n剩余登陆次数："+loginTimes);}else {SalesMan salesMan = salesManInfo.get(0);//此地，只返回了一组数值，只遍历1次即可if (sPssWord.equals(salesMan.getSPassWord()))//验证密码，登陆成功了！！{System.out.println("\t ---账户成功登陆---");shoppingSettlementPage(salesMan.getSId());//参数为营业员编号sId}else {System.err.println("\t!!密码错误!!\n");System.out.println("\n剩余登陆次数："+loginTimes);}}}//loginTimes = 0System.out.println("------------------");System.err.println("\t！！您已被强制退出系统！！");System.exit(1);break;case 2:System.out.println("------------------");System.out.println("您已经退出系统!");System.exit(-1);break;default:break;}}System.err.println("!输入有误!");System.out.println("重新输入或按 0 返回上一级菜单");}while(true);}/*** 3.商品管理界面*/public static void commodityManagementPage(){System.out.println("***************************\n");System.out.println("\t 1.售货员管理\n");System.out.println("\t 2.列出当日卖出列表\n");System.out.println("***************************");System.out.println("\n请输入选项,或者按 0 返回上一级菜单.");do{String choice = ScannerInfoString();String regex = "[0-2]";if (choice.matches(regex)){int info = Integer.parseInt(choice);switch (info){case 0:mainPage();break;case 1:salesManManagementPage();break;case 2:GsalesPage.dailySaleGoodsPage();break;default:break;}}System.err.println("!输入有误!");System.out.println("重新输入或按 0 返回上一级菜单.");}while(true);}/*** 购物结算界面*/public static void shoppingSettlementPage(int salesManSid){System.out.println("\n\t*******购物结算*******\n");do{System.out.println("按 S 开始购物结算.按 0 返回账户登录界面");String choNext = ScannerInfoString();if ("0".equals(choNext)){checkstandLogPage();}else if ("s".equals(choNext) || "S".equals(choNext)) {System.out.println("\n--请输入商品关键字--");int gid = QueryPrint.querySettlement();//当商品件数有且只有一件时返回商品gid号，商品已售空时返回 -1. >1件时返回-2 . 查无此商品时返回-3switch (gid){case -3://无此商品,重新循环break;case -1:System.err.println("\t--抱歉，该商品已售空--");break;default:System.out.println("--按商品编号选择商品--");//传参gid，调用精确查询商品int shoppingGid = ScannerNum();ArrayList<Goods> goodsList = new QueryPrint().queryGoodsKey(shoppingGid,null);if (goodsList == null || goodsList.size() == 0){System.err.println("\t！！查无此商品 ！！\n");}else {Goods goods = goodsList.get(0);int gNum = goods.getGnum();double gPrice = goods.getGprice(); System.out.println("--请输入购买数量--");do{int choicegoodsNum = ScannerNum();//获取用户要购买的数量if (choicegoodsNum > gNum){System.err.println("\t！！仓库储备不足！！");System.out.println("--请重新输入购买数量--");}else {double allPrice = Arith.mul(choicegoodsNum, gPrice);//利用BigDecimal作乘法运算System.out.println("\t\t\t 购物车结算\n");System.out.println("\t\t商品名称\t商品单价\t购买数量\t总价\n");System.out.println("\t\t"+goods.getGname()+"\t"+gPrice+" $\t"+choicegoodsNum+"\t"+allPrice+" $\n");do{System.out.println("确认购买：Y/N");String choShopping = ScannerInfoString(); if ("y".equals(choShopping) || "Y".equals(choShopping)){System.out.println("\n总价："+allPrice+" $");System.out.println("\n实际缴费金额");do{double amount = ScannerInfo();double balance = Arith.sub(amount, allPrice); //用户交钱与购买物品总价间的差额if (balance < 0){System.err.println("\t！！缴纳金额不足！！");System.out.println("\n请重新输入缴纳金额($)");}else{/*这里是购物结算操作数据库！！！！！！---------------------- 1.更改goods表数量 2.增加sales表数量原商品数量gNum。 结算员Id salesManSid *///对sales表操作Gsales gSales = new Gsales(goods.getGid(),salesManSid,choicegoodsNum);boolean insert = new GsalesDao().shoppingSettlement(gSales);//对goods表操作int goodsNewNum = gNum - choicegoodsNum; //现在goods表中该商品数量Goods newGoods = new Goods(goods.getGid(),goodsNewNum);boolean update = new GoodsDao().updateGoods(3,newGoods);if (update && insert){System.out.println("找零："+balance);System.out.println("\n谢谢光临，欢迎下次惠顾");}else {System.err.println("！支付失败！"); //出现这个错误一定是数据库操作有问题！}shoppingSettlementPage(salesManSid);//最后跳转到到购物结算页面//结束购物结算操作数据库！！！！！！-----------------------------------}} while (true);}else if ("N".equals(choShopping) || "n".equals(choShopping)) {shoppingSettlementPage(salesManSid);}System.err.println("\t！！请确认购物意向！！");} while (true);}} while (true);}break;}}else{System.err.println("\t!!请输入合法字符!!\n");}} while (true);}/*** 售货员管理界面*/public static void salesManManagementPage(){System.out.println("***************************\n");System.out.println("\t 1.添加售货员\n");System.out.println("\t 2.更改售货员\n");System.out.println("\t 3.删除售货员\n");System.out.println("\t 4.查询售货员\n");System.out.println("\t 5.显示所有售货员\n");System.out.println("***************************");System.out.println("\n请输入选项,或者按 0 返回上一级菜单.");do{String choice = ScannerInfoString();String regex = "[0-5]";if (choice.matches(regex)){int info = Integer.parseInt(choice);switch (info){case 0:commodityManagementPage();break;case 1:SalesManPage.addSalesManPage();break;case 2:SalesManPage.updateSalesManPage();break;case 3:SalesManPage.deleteSalesManPage();break;case 4:SalesManPage.querySalesManPage();break;case 5:SalesManPage.displaySalesManPage();break;default:break;}}System.err.println("\t!输入有误!");System.out.println("重新输入或按 0 返回上一级菜单.");}while(true);}}

二、duan.page.GoodsPage

package duan.page;import java.util.ArrayList;import duan.dao.GoodsDao;import duan.entity.Goods;import duan.tools.QueryPrint;import duan.tools.ScannerChoice;/*** 操作商品界面* @author duan*/public final class GoodsPage extends ScannerChoice{/*** 1.添加商品界面*/public static void addGoodsPage(){System.out.println("\t正在执行添加商品操作\n");System.out.println("\n請輸入添加商品-名称");String goodsName = ScannerInfoString();System.out.println("\n請輸入添加商品-价格");double goodsPrice = ScannerInfo();System.out.println("\n請輸入添加商品-数量");int goodsNumber = ScannerNum();Goods goods = new Goods(goodsName,goodsPrice,goodsNumber);boolean bool = new GoodsDao().addGoods(goods);if (bool){System.out.println("\n\t!您已成功添加商品到数据库!");}else {System.out.println("添加商品失败");}changedInfoNext("addGoodsPage");//选择下一步}/*** 2.更改商品界面*/public static void updateGoodsPage(){System.out.println("\t正在执行 更改商品 操作\n");System.out.println("请输入想要更改的商品名字");//调用查找商品函数，显示将要更改的商品信息int gid = QueryPrint.query("updateGoodsPage"); //return the goods gidSystem.out.println("\n--------请选择您要更改的内容\n");System.out.println("\t1.更改商品-名称");System.out.println("\t2.更改商品-价格");System.out.println("\t3.更改商品-数量");System.out.println("\n请输入选项,或者按0返回上一级菜单.");do{String choice = ScannerInfoString();String regex = "[0-3]";if (choice.matches(regex)){ int info = Integer.parseInt(choice);switch (info){case 0:MainPage.MaintenancePage();break;case 1:System.out.println("请输入商品-新名称");String gname = ScannerInfoString();Goods goodsName = new Goods(gid,gname);boolean boolName = new GoodsDao().updateGoods(1, goodsName);if (boolName){System.out.println("\n\t！！成功更新商品名至数据库！！\n");}else {System.err.println("\n\t！！更新商品名失敗！！");}changedInfoNext("updateGoodsPage");break;case 2:System.out.println("请输入商品-新价格 ");double gprice = ScannerInfo();Goods goodsPrice = new Goods(gid,gprice);boolean boolPrice = new GoodsDao().updateGoods(2,goodsPrice);if (boolPrice){System.out.println("\n\t！！成功更新商品价格至数据库！！\n");}else {System.err.println("\n\t！！更新商品价格失敗！！");}changedInfoNext("upateGoodsPage");break;case 3:System.out.println("请输入商品-新数量 ");int gNum = ScannerNum();Goods goodsNum= new Goods(gid,gNum);boolean boolNum = new GoodsDao().updateGoods(3,goodsNum);if (boolNum){System.out.println("\n\t！！成功更新商品数量至数据库！！\n");}else {System.err.println("\n\t！！更新商品数量失敗！！");}changedInfoNext("upateGoodsPage");break;default:System.out.println("请输入正确的选择！");break;}}System.err.println("！输入有误！");System.out.println("请重新选择,或者按0返回上一级菜单.");} while (true);}/*** 3.删除商品界面*/public static void deleteGoodsPage(){System.out.println("\t正在执行 删除商品 操作\n");System.out.println("请输入想要删除的商品名字");//调用查找商品函数，显示将要删除的商品int gid = QueryPrint.query("deleteGoodsPage"); //return the goods gid//确认删除！do{System.out.println("\n确认删除该商品：Y/N");String choice = ScannerInfoString();if ("y".equals(choice) || "Y".equals(choice)){//进行刪除-数据库操作boolean boolDeleteGoods = new GoodsDao().deleteGoods(gid);//調用刪除功能if (boolDeleteGoods){System.err.println("\t！！已成功刪除该商品！！\n");}else {System.err.println("\n\t！！刪除该商品失敗！！");}changedInfoNext("deleteGoodsPage"); }else if ("N".equals(choice) || "n".equals(choice)) {MainPage.MaintenancePage();}System.out.println("\t!!输入有误,请重新输入!!\n");} while (true);}/*** 4.查询商品界面*/public static void queryGoodsPage(){System.out.println("\t\t 正在执行查询商品操作\n");System.out.println("\t\t1.按照商品 数量升序 查询");System.out.println("\t\t2.按照商品 价格升序 查询");System.out.println("\t\t3.输入商品 关键字 查询");System.out.println("\n请输入选项,或者按0返回上一级菜单.");do{String info = ScannerInfoString();//用户选择上述提示信息String regex = "[0-3]";if (info.matches(regex)){ int choice = Integer.parseInt(info);switch (choice){case 0:MainPage.MaintenancePage();break;case 1:case 2:case 3:if (choice == 3)//当用户使用3（即关键字查询）时，需要打印此项目。{System.out.println("\t\t正在执行商品 关键字 查询操作\n");System.out.println("\n请输入商品关键字");}//调用查询功能ArrayList<Goods> goodsList = new GoodsDao().queryGoods(choice);if (goodsList == null || goodsList.size() <= 0){System.err.println("\n\t!!您查询的商品不存在!!\n");queryGoodsPage();} else{if (choice == 1) //打印目录，不要放在功能函数中，会影响其他方法调用{System.out.println("\t\t\t\t\t商品按照 数量升序 列表\n\n");}else if (choice == 2) {System.out.println("\t\t\t\t\t商品按照 价格升序 列表\n\n");}else{System.out.println("\t\t\t\t\t您所查找的商品如下\n\n");}System.out.println("\t商品编号\t\t商品名称\t\t商品价格\t\t商品数量\t\t备注\n");//遍历数组（存放用户查找的信息） for (int i = 0,length = goodsList.size(); i < length; i++){Goods goods = goodsList.get(i);System.out.print("\t"+goods.getGid()+"\t\t"+goods.getGname()+"\t\t"+goods.getGprice()+"\t\t"+goods.getGnum());int gnum = goods.getGnum();if (gnum ==0){System.out.println("\t\t该商品已售空！");}else if (gnum<10){System.out.println("\t\t该商品已不足10件");}else {System.out.println("\t\t-");}System.out.println("\t");}System.out.println("---------------------");do{System.out.println("输入 0 返回上一级菜单");String choiceNext = ScannerInfoString();if ("0".equals(choiceNext)){MainPage.MaintenancePage();}System.err.println("输入有误！");} while (true);}break;default:break;}break;}System.err.println("输入有误！");System.out.println("请重新选择,或者按0返回上一级菜单.");} while (true);//用户选择操作完查询后的下一步System.out.println("\n\n输入 0 返回上一级菜单");boolean boolNext = true;do{String choice = ScannerInfoString();if ("0".equals(choice)){ boolNext = false;queryGoodsPage();}System.err.println("!输入有误!");System.out.println("请输入 0 返回上一级菜单");} while (boolNext);}/*** 5.展示所有商品界面*/public static void displayGoodsPage(){System.out.println("\t\t\t\t\t所有商品列表\n\n");ArrayList<Goods> goodsList = new GoodsDao().displayGoods();if (goodsList.size() <= 0){System.err.println("！库存为空！");MainPage.MaintenancePage();}else {System.out.println("\t商品编号\t\t商品名称\t\t商品价格\t\t商品数量\t\t备注\n");for (int i = 0,length = goodsList.size(); i < length; i++) //避免重复计算变量，浪费资源！{Goods goods = goodsList.get(i);System.out.print("\t"+goods.getGid()+"\t\t"+goods.getGname()+"\t\t"+goods.getGprice()+" $\t\t"+goods.getGnum());int gNum = goods.getGnum();if (gNum==0){System.out.println("\t\t该商品已售空！");}else if (gNum<10) {System.out.println("\t\t该商品已不足10件");}else{System.out.println("\t\t-");}System.out.println("\t");}//下一步System.out.println("---------------------");do{System.out.println("输入 0 返回上一级菜单");String choice = ScannerInfoString();if ("0".equals(choice)){MainPage.MaintenancePage();}System.out.println("输入有误！");} while (true);}}}

三、duan.page.GsalesPage

package duan.page;import java.util.ArrayList;import duan.dao.GsalesDao;import duan.entity.Gsales;import duan.tools.ScannerChoice;/*** 当日卖出商品列表界面* @author duan*/public final class GsalesPage{public static void dailySaleGoodsPage(){System.out.println("\t正在执行列出当日售出商品列表操作\n");ArrayList<Gsales> GsalesList = new GsalesDao().dailyGsales();//当日售出商品数组集if (GsalesList.size() <= 0){System.err.println("\t！！今日无商品售出！！");modityManagementPage();}else {System.out.println("\t\t\t\t今日售出商品列表\n");System.out.println("\t商品名称\t\t商品价格\t\t商品数量\t\t销量\t\t备注\n");for (int i = 0,length = GsalesList.size(); i < length; i++){//获取售出商品：gname,gprice,gnumGsales gSales = GsalesList.get(i);System.out.print("\t"+gSales.getGName()+"\t\t"+gSales.getGPrice()+" $\t\t"+gSales.getGNum()+"\t\t");int gNUm = gSales.getGNum();if (gNUm==0){System.out.println("\t\t该商品已售空");}else if (gNUm<10){System.out.println("\t\t该商品已不足10件");}else {System.out.println("\t\t-");}System.out.println("\t");}do{System.out.println("\n\n输入 0 返回上一级菜单");String choice = ScannerChoice.ScannerInfoString();if ("0".equals(choice)){MainPage.salesManManagementPage();}modityManagementPage();} while (true);}}}

4、duan.page.SalesManPage

package duan.page;import java.util.ArrayList;import duan.dao.SalesManDao;import duan.entity.SalesMan;import duan.tools.QueryPrint;import duan.tools.ScannerChoice;/*** 操作售货员界面 * @author duan*/public final class SalesManPage extends ScannerChoice{/*** 1.添加售货员界面 */public static void addSalesManPage(){System.out.println("\t正在执行添加售货员操作\n");System.out.println("\n添加售货员-姓名");String sName = ScannerInfoString();System.out.println("\n添加售货员-密码");String sPssswd = ScannerInfoString();SalesMan salesMan = new SalesMan(sName,sPssswd);boolean bool = new SalesManDao().addSalesMan(salesMan);if (bool){System.out.println("\n\t!您已成功添加售货员到数据库!");}else {System.out.println("添加售货员失败");}choiceSalesManNext("addSalesMan");}/*** 2.更改售货员界面*/public static void updateSalesManPage(){System.out.println("\t正在执行更改售货员操作\n");System.out.println("请输入想要更改的售货员名字");String sName = ScannerInfoString();//调用精确查找售货员函数ArrayList<SalesMan> salesManList = new QueryPrint().querySalesMan(sName);if (salesManList.size() <= 0){System.err.println("\t！！查无此人！！");choiceSalesManNext("updateSalesMan");}else {//显示将要更改的售货员信息System.out.println("\t\t\t售货员信息\n\n");System.out.println("\t售货员编号\t\t售货员姓名\t\t售货员密码");SalesMan salesMan = salesManList.get(0); //上面的精确查找中，只能返回一组数值。无需遍历！System.out.println("\t"+salesMan.getSId()+"\t\t\t"+salesMan.getSName()+"\t\t\t"+salesMan.getSPassWord());System.out.println();//选择更改售货员内容System.out.println("\n--------请选择您要更改的内容\n");System.out.println("\t1.更改售货员-姓名");System.out.println("\t2.更改售货员-密码");do{String choice = ScannerInfoString();String regex = "[0-2]";if (choice.matches(regex)){int info = Integer.parseInt(choice);switch (info){case 0:MainPage.salesManManagementPage();break;case 1:System.out.println("更改售货员-新姓名");String sNewName = ScannerInfoString();SalesMan salesManName = new SalesMan(salesMan.getSId(),sNewName,null);boolean boolsName = new SalesManDao().updateSalesMan(1, salesManName);if (boolsName){System.out.println("\n\t！！成功更新售货员名字至数据库！！\n");}else {System.err.println("\n\t！！更新售货员名字失敗！！");}choiceSalesManNext("updateSalesMan");break;case 2:System.out.println("更改售货员-新密码");String sNewPasswd = ScannerInfoString();SalesMan salesManPasswd = new SalesMan(salesMan.getSId(),null,sNewPasswd);boolean boolsPasswd = new SalesManDao().updateSalesMan(2, salesManPasswd);if (boolsPasswd){System.out.println("\n\t！！成功更新售货员密码至数据库！！\n");}else {System.err.println("\n\t！！更新售货员密码失敗！！");}choiceSalesManNext("updateSalesMan");break;default:break;}}System.out.println("\t!输入有误!");System.out.println("\n请选择选项.或者按 0 返回上一级菜单.");} while (true);}}/*** 3.删除售货员界面*/public static void deleteSalesManPage(){System.out.println("\t正在执行 删除售货员 操作\n");System.out.println("请输入想要删除的售货员名字");String sName = ScannerInfoString();//调用精确查找售货员函数ArrayList<SalesMan> salesManList = new QueryPrint().querySalesMan(sName);if (salesManList.size() <= 0){System.err.println("\t！！查无此人！！");choiceSalesManNext("deleteSalesMan");}else {//显示将要删除的售货员信息System.out.println("\t\t\t删除售货员信息\n\n");System.out.println("\t售货员编号\t\t售货员姓名\t\t售货员密码");for (int i = 0,length = salesManList.size(); i < length; i++){SalesMan salesMan = salesManList.get(i);System.out.println("\t"+salesMan.getSId()+"\t\t\t"+salesMan.getSName()+"\t\t\t"+salesMan.getSPassWord());System.out.println();}//确认是否真的删除！do{System.out.println("\n确认删除该售货员：Y/N");String choice = ScannerInfoString();if ("y".equals(choice) || "Y".equals(choice)){//进行刪除-数据库操作boolean boolDeleteSalesMan = new SalesManDao().deleteSalesMan(sName);//調用刪除功能if (boolDeleteSalesMan){System.err.println("\t！！已成功刪除该售货员！！\n");}else {System.err.println("\t！！刪除该售货员失敗！！");}choiceSalesManNext("deleteGoods"); }else if ("N".equals(choice) || "n".equals(choice)) {MainPage.salesManManagementPage();}System.err.println("\t!!输入有误,请重新输入!!");} while (true);}}/*** 4.查询售货员界面 已实现！*/public static void querySalesManPage(){System.out.println("\t\t 正在执行查询售货员操作\n");System.out.println("要查询的售货员关键字");String sName = ScannerInfoString();ArrayList<SalesMan> salesManList = new SalesManDao().querySalesMan(sName);if (salesManList.size() <=0){System.err.println("\t！没有人员符合查询条件！");}else {System.out.println("\t\t\t所有售货员列表\n\n");System.out.println("\t售货员编号\t\t售货员姓名\t\t售货员密码");for (int i = 0,length = salesManList.size(); i < length; i++){SalesMan salesMan = salesManList.get(i);System.out.println("\t"+salesMan.getSId()+"\t\t\t"+salesMan.getSName()+"\t\t\t"+salesMan.getSPassWord());System.out.println();}}choiceSalesManNext("querySalesMan"); //param：调用者}/*** 5.显示所有售货员界面*/public static void displaySalesManPage(){ArrayList<SalesMan> salesManList = new SalesManDao().displaySalesMan();if (salesManList.size() <= 0){System.err.println("\t！！售货员列表为空！！");MainPage.salesManManagementPage();}else {System.out.println("\t\t\t所有售货员列表\n\n");System.out.println("\t售货员编号\t\t售货员姓名\t\t售货员密码");for (int i = 0,length = salesManList.size(); i < length; i++){SalesMan salesMan = salesManList.get(i);System.out.println("\t"+salesMan.getSId()+"\t\t\t"+salesMan.getSName()+"\t\t\t"+salesMan.getSPassWord());System.out.println();}do{System.out.println("\n\n输入 0 返回上一级菜单");String choice = ScannerInfoString();if ("0".equals(choice)){MainPage.salesManManagementPage();}System.err.print("\t输入有误！");} while (true);}}}