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import java.util.HashMap;
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import java.util.Map;
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/**
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* 用户管理类，负责用户验证和账户管理
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*/
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public class UserManager {
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private Map<String, User> users;
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public UserManager() {
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initializeUsers();
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}
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/**
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* 初始化预设用户账户
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*/
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private void initializeUsers() {
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users = new HashMap<>();
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// 小学账户
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users.put("张三1", new User("张三1", "123", "小学"));
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users.put("张三2", new User("张三2", "123", "小学"));
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users.put("张三3", new User("张三3", "123", "小学"));
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// 初中账户
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users.put("李四1", new User("李四1", "123", "初中"));
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users.put("李四2", new User("李四2", "123", "初中"));
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users.put("李四3", new User("李四3", "123", "初中"));
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// 高中账户
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users.put("王五1", new User("王五1", "123", "高中"));
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users.put("王五2", new User("王五2", "123", "高中"));
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users.put("王五3", new User("王五3", "123", "高中"));
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}
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/**
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* 验证用户登录
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* @param username 用户名
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* @param password 密码
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* @return 验证成功返回用户对象，失败返回null
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*/
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public User authenticate(String username, String password) {
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User user = users.get(username);
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if (user != null && user.getPassword().equals(password)) {
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return user;
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}
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return null;
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}
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/**
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* 检查用户类型是否有效
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* @param userType 用户类型
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* @return 是否有效
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*/
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public boolean isValidUserType(String userType) {
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return "小学".equals(userType) || "初中".equals(userType) || "高中".equals(userType);
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}
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} |
