43 lines
1.2 KiB
Java
43 lines
1.2 KiB
Java
package service;
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import dao.DAOFactory;
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import dao.StudentDAO;
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import model.Student;
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/**
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* 学生信息服务类
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*/
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public class StudentService {
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private final StudentDAO studentDAO = DAOFactory.getStudentDAO();
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/**
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* 根据ID查询学生
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* @param id 学生ID
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* @return 学生信息
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*/
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public Student getStudentById(int id) {
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return studentDAO.findById(id);
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}
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/**
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* 学生登录
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* @param studentId 学号
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* @param password 密码
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* @return 登录成功返回学生信息，失败返回null
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*/
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public Student login(String studentId, String password) {
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Student student = studentDAO.findByStudentId(studentId);
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System.out.println("尝试登录 - 学号： " + studentId);
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System.out.println("找到学生：" + (student != null));
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if (student != null) {
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System.out.println("存储密码：" + student.getPassword());
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System.out.println("输入密码：" + password);
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System.out.println("密码匹配：" + password.equals(student.getPassword()));
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}
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if (student != null && password.equals(student.getPassword())) {
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return student;
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}
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return null;
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}
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}
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