package lianxi;
import java.io.*;
import java.util.Scanner;
public class User extends Create {
    public void register() throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new FileReader("Shop\\User.txt"));
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter("Shop\\User.txt", true));
        BufferedReader br2 = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("----此页面为用户注册页面---");
        Scanner scanner = new Scanner(System.in);
        System.out.println("请设置你的账号");
        String name = scanner.next();
        System.out.println("请设置你的密码");
        String password = br2.readLine();
        System.out.println("请设置你的密保");
        String problem = br2.readLine();
        System.out.println("请设置你的密保答案");
        String answer = br2.readLine();
        String lineTxt1;
        while ((lineTxt1 = bufferedReader.readLine()) != null&&!lineTxt1.equals("")) {
            String[] ss = lineTxt1.split(" ");
            if (ss[1].equals(name)) {
                System.out.println("您注册的账号已存在，请重新注册：");
                register();
            }
        }
        String o = "账号： " + name + " ，密码为： " + password + " ，密保问题为： " + problem + " ，密保答案为： " + answer + "\n";
        bufferedWriter.write(o);
        bufferedWriter.close();
        System.out.println("恭喜您注册成功，为您转接主菜单");
        Homepage homepage = new Homepage();
        homepage.homepage();
        bufferedReader.close();
        br2.close();
    }
    public void login() throws IOException {
        BufferedReader br = new BufferedReader(new FileReader("Shop\\User.txt"));
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你的账号：");
        String name = scanner.next();
        System.out.println("请输入你的密码：");
        String password = in.readLine();
        String name1;
        while ((name1 = br.readLine()) != null) {
            String[] ss = name1.split(" ");
            if (name.equals(ss[1]) && password.equals(ss[3])) {
                System.out.println("登录成功");
                UserCatalogue userCatalogue = new UserCatalogue();
                userCatalogue.userCatalogue();
            }
        }
        System.out.println("登录失败，将返回主页面");
        Homepage homepage = new Homepage();
        homepage.homepage();
        br.close();
    }
    public void changePassword() throws IOException {
        BufferedReader br = new BufferedReader(new FileReader("Shop\\User.txt"));
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你的原密码");
        String password = scanner.next();
        String name1;
        String a = "";
        String o = null;
        while ((name1 = br.readLine()) != null) {
            if (name1.contains(password)) {
                String[] ss = name1.split(" ");
                System.out.println(ss[5]);
                String answer = ss[7];
                Scanner scanner1 = new Scanner(System.in);
                System.out.println("请输入你的密保答案");
                String answer1 = scanner1.next();
                if (answer1.equals(answer)) {
                    System.out.println("您的密保答案正确");
                    System.out.println("请输入你的新密码：");
                    String newPassword = in.readLine();
                    System.out.println("请再次输入你的新密码：");
                    String newPassword1 = in.readLine();
                    if (!password.equals(newPassword) && newPassword1.equals(newPassword)) {
                        o = "账号： " + ss[1] + " ，密码为： " + newPassword + " ，密保问题为： " + ss[5] + " ，密保答案为： " + ss[7] + "\n";
                    } else {
                        System.out.println("您输入的两次密码不相同或与原密码相同，修改失败，返回用户主页面");
                        UserCatalogue userCatalogue = new UserCatalogue();
                        userCatalogue.userCatalogue();
                    }
                } else {
                    System.out.println("您输入的密保答案错误，返回用户主页面");
                    UserCatalogue userCatalogue = new UserCatalogue();
                    userCatalogue.userCatalogue();
                }
            } else {
                a += name1 + "\n";
            }
        }
        BufferedWriter bufferedWriter1 = new BufferedWriter(new FileWriter("Shop\\User.txt"));
        bufferedWriter1.close();
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter("Shop\\User.txt", true));
        bufferedWriter.write(o);
        bufferedWriter.write(a);
        System.out.println("修改密码成功!请重新登录");
        bufferedWriter.close();
        br.close();
        User user = new User();
        user.login();
    }
}

package lianxi;
import java.io.*;
import java.util.Scanner;
public class Goods {
    public void addThing() throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new FileReader("Shop\\Object.txt"));
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter("Shop\\Object.txt", true));
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你要添加的商品");
        String commodity = scanner.next();
        System.out.println("请输入你要售卖的价格");
        double kg = scanner.nextDouble();
        System.out.println("请输入您要上架的单位类型（千克、个、袋、瓶等）");
        String l=scanner.next();
        String goods;
        while ((goods = bufferedReader.readLine()) != null) {
            if (goods.contains(commodity)) {
                System.out.println("该商品已存在，若想修改价格，请先下架，再上架，为您转接管理员主页面");
                CustodianCatalogue custodianCatalogue = new CustodianCatalogue();
                custodianCatalogue.custodianCatalogue();
                continue;
            }
        }
        bufferedWriter.write(commodity + " " + kg + " 元/"+l);
        bufferedWriter.newLine();
        System.out.println("添加完成！为您转接管理员页面");
        bufferedWriter.flush();
        bufferedWriter.close();
        CustodianCatalogue custodianCatalogue = new CustodianCatalogue();
        custodianCatalogue.custodianCatalogue();
    }
    public void deleteThing() throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new FileReader("Shop\\Object.txt"));
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你要下架的物品");
        String commodity = scanner.next();
        String object;
        String a = "";
        String a1;
        String a2 = null;
        while ((a1 = bufferedReader.readLine()) != null) {
            a2 += a1;
        }
        if (!a2.contains(commodity)) {
            System.out.println("您输入的下架商品不存在，请重新输入");
            deleteThing();
        }
        BufferedReader bufferedReader1 = new BufferedReader(new FileReader("Shop\\Object.txt"));
        while ((object = bufferedReader1.readLine()) != null) {
            if (object.contains(commodity)) {
                continue;
            } else {
                BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter("Shop\\Object.txt"));
                bufferedWriter.close();
                BufferedWriter bufferedWriter1 = new BufferedWriter(new FileWriter("Shop\\Object.txt", true));
                a += object + "\n";
                bufferedWriter1.write(a);
                bufferedWriter1.close();
            }
        }
        System.out.println("下架成功！为您转接管理员主页");
        bufferedReader.close();
        CustodianCatalogue custodianCatalogue = new CustodianCatalogue();
        custodianCatalogue.custodianCatalogue();
    }
    public void DeleteInformation() throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new FileReader("Shop\\Order.txt"));
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你要删除的订单号码");
        String number1 = scanner.next();
        String lineTxt1;
        String a2 ="";
        String a3 ="";
        while ((lineTxt1 = bufferedReader.readLine()) != null) {
            if (lineTxt1.contains(number1)) {
                String[] ss = lineTxt1.split(" ");
                if (ss[ss.length - 1].equals(number1)) {
                    continue;
                } else {
                }
            }
            a2 += lineTxt1 + "\n";
        }
        a3+= a2;
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter("Shop\\Order.txt"));
        bufferedWriter.close();
        BufferedWriter bufferedWriter1 = new BufferedWriter(new FileWriter("Shop\\Order.txt", true));
        bufferedWriter1.write(a3);
        bufferedWriter1.close();
        System.out.println("您操作完毕，转接到管理员页面");
        CustodianCatalogue custodianCatalogue = new CustodianCatalogue();
        custodianCatalogue.custodianCatalogue();
        bufferedReader.close();
    }
}