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2 Commits
| Author | SHA1 | Date |
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 pk3pnwq9h
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a9aa045902 | 2 years ago |
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pk3pnwq9h
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6b6877762e | 2 years ago |
@ -1,16 +0,0 @@
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“简单用户信息管理”软件系统的需求构思及描述
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1.背景介绍
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本项目旨在开发一个用户管理系统，用于管理用户的基本信息，包括用户名、邮箱、年龄和性别。该系统将提供用户添加、删除、修改和查询等功能，同时支持将用户信息存储到文件中以及从文件中读取用户信息
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2.欲解决问题
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此软件欲解决的问题有：
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1 添加用户：用户可以通过系统添加新的用户，提供用户名，邮箱，年龄，性别等信息。
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2 删除用户：管理员可以根据用户名删除现有用户。服药不提醒：老人记忆力衰退，经常忘记吃药
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3 修改用户信息：管理员可以根据用户名修改用户的邮箱、年龄和性别等信息。
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4.查询用户信息：管理员可以根据用户名查询用户的详细信息。
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5.数据持久化：系统将用户信息存储到文件中，以便下次启动时可以读取已保存的用户信息。
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软件创意：能够修改用户信息
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3.可行性及潜在风险
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技术风险：可能遇到技术难题，如文件读写操作、异常处理等，需及时调整方案。
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需求变更：用户需求可能会发生变化，需要与用户保持沟通，及时调整开发计划。
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人力资源：团队成员可能会离职或调动，需合理分配任务，确保项目进度。
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@ -1,34 +0,0 @@
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@startuml
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class User {
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- username: String
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- email: String
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- age: int
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- gender: String
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+ User(username: String, email: String, age: int, gender: String)
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+ getUsername(): String
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+ getEmail(): String
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+ getAge(): int
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+ getGender(): String
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+ setUsername(username: String): void
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+ setEmail(email: String): void
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+ setAge(age: int): void
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+ setGender(gender: String): void
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+ toString(): String
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}
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class UserManager {
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- userList: ArrayList<User>
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- FILE_NAME: String
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+ UserManager()
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+ readUsersFromFile(): ArrayList<User>
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+ writeUsersToFile(): void
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+ addUser(user: User): void
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+ findUserByUsername(username: String): User
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+ removeUser(username: String): boolean
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+ modifyUserInfo(username: String, newEmail: String, newAge: int, newGender: String): boolean
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}
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User --* UserManager
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@enduml
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@ -1,213 +0,0 @@
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import java.io.*;
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import java.util.ArrayList;
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import java.util.Scanner;
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// 用户类
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class User implements Serializable {
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private static final long serialVersionUID = 1L;
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private String username;
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private String email;
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private int age;
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private String gender;
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public User(String username, String email, int age, String gender) {
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this.username = username;
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this.email = email;
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this.age = age;
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this.gender = gender;
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}
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public String getUsername() {
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return username;
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}
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public String getEmail() {
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return email;
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}
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public int getAge() {
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return age;
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}
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public String getGender() {
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return gender;
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}
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public void setUsername(String username) {
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this.username = username;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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public void setAge(int age) {
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this.age = age;
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}
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public void setGender(String gender) {
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this.gender = gender;
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}
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@Override
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public String toString() {
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return "Username: " + username + ", Email: " + email + ", Age: " + age + ", Gender: " + gender;
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}
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}
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// 用户管理类
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class UserManager {
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private ArrayList<User> userList;
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private static final String FILE_NAME = "users.dat";
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public UserManager() {
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userList = readUsersFromFile();
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}
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// 从文件中读取用户信息
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private ArrayList<User> readUsersFromFile() {
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ArrayList<User> users = new ArrayList<>();
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try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(FILE_NAME))) {
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users = (ArrayList<User>) ois.readObject();
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} catch (FileNotFoundException e) {
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System.out.println("文件不存在，将创建新文件。");
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} catch (IOException | ClassNotFoundException e) {
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e.printStackTrace();
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}
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return users;
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}
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// 将用户信息写入文件
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private void writeUsersToFile() {
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try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(FILE_NAME))) {
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oos.writeObject(userList);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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// 添加用户
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public void addUser(User user) {
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userList.add(user);
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writeUsersToFile();
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}
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// 根据用户名查找用户
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public User findUserByUsername(String username) {
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for (User user : userList) {
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if (user.getUsername().equals(username)) {
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return user;
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}
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}
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return null;
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}
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// 删除用户
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public boolean removeUser(String username) {
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User user = findUserByUsername(username);
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if (user != null) {
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userList.remove(user);
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writeUsersToFile();
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return true;
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}
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return false;
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}
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// 修改用户信息
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public boolean modifyUserInfo(String username, String newEmail, int newAge, String newGender) {
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User user = findUserByUsername(username);
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if (user != null) {
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user.setEmail(newEmail);
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user.setAge(newAge);
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user.setGender(newGender);
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writeUsersToFile();
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return true;
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}
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return false;
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}
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}
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// 主程序
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public class yy1{
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public static void main(String[] args) {
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UserManager userManager = new UserManager();
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Scanner scanner = new Scanner(System.in);
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boolean running = true;
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while (running) {
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System.out.println("用户信息管理系统");
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System.out.println("1. 添加用户");
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System.out.println("2. 查找用户");
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System.out.println("3. 删除用户");
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System.out.println("4. 修改用户信息");
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System.out.println("5. 退出");
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System.out.print("请选择操作：");
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int choice = scanner.nextInt();
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scanner.nextLine(); // 清除输入缓冲区
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switch (choice) {
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case 1:
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System.out.print("请输入用户名：");
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String username = scanner.nextLine();
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System.out.print("请输入邮箱：");
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String email = scanner.nextLine();
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System.out.print("请输入年龄：");
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int age = scanner.nextInt();
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scanner.nextLine(); // 清除输入缓冲区
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System.out.print("请输入性别：");
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String gender = scanner.nextLine();
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User newUser = new User(username, email, age, gender);
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userManager.addUser(newUser);
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System.out.println("用户已添加！");
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break;
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case 2:
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System.out.print("请输入要查找的用户名：");
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String searchUsername = scanner.nextLine();
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User foundUser = userManager.findUserByUsername(searchUsername);
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if (foundUser != null) {
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System.out.println("用户信息：");
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System.out.println(foundUser);
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} else {
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System.out.println("未找到用户！");
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}
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break;
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case 3:
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System.out.print("请输入要删除的用户名：");
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String deleteUsername = scanner.nextLine();
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boolean removed = userManager.removeUser(deleteUsername);
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if (removed) {
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System.out.println("用户已删除！");
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} else {
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System.out.println("未找到用户！");
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}
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break;
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case 4:
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System.out.print("请输入要修改信息的用户名：");
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String modifyUsername = scanner.nextLine();
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System.out.print("请输入新的邮箱：");
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String newEmail = scanner.nextLine();
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System.out.print("请输入新的年龄：");
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int newAge = scanner.nextInt();
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scanner.nextLine(); // 清除输入缓冲区
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System.out.print("请输入新的性别：");
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String newGender = scanner.nextLine();
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boolean modified = userManager.modifyUserInfo(modifyUsername, newEmail, newAge, newGender);
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if (modified) {
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System.out.println("用户信息已修改！");
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} else {
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System.out.println("未找到用户！");
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}
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break;
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case 5:
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running = false;
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System.out.println("感谢使用，再见！");
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break;
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default:
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System.out.println("无效的选项，请重新输入！");
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}
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System.out.println();
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}
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scanner.close();
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}
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}
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