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feat(学生): 添加成绩分析功能及密码修改功能

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- 新增成绩分析页面，包含GPA趋势图、成绩分布图和学分进度
- 实现学生密码修改功能，包括前端表单和后端验证逻辑
- 添加课程类别分析功能，展示不同类别课程的GPA表现
- 优化学生仪表板和课程页面导航链接
- 增加数据加载状态提示和错误处理
This commit is contained in:
祀梦
2025-12-22 21:07:21 +08:00
parent ac6029dac8
commit 16802c85e5
13 changed files with 819 additions and 14 deletions
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20
backend/controllers/authController.js
View File

@@ -65,6 +65,26 @@ class AuthController {
res.json({ success: false, message: '未登录' });
}
}
static async updatePassword(req, res) {
try {
const userId = req.session.user.id;
const { oldPassword, newPassword } = req.body;
if (!oldPassword || !newPassword) {
return error(res, '请提供原密码和新密码', 400);
}
await AuthService.updatePassword(userId, oldPassword, newPassword);
success(res, null, '密码修改成功');
} catch (err) {
if (err.message === '原密码错误' || err.message === '用户不存在') {
return error(res, err.message, 400);
}
console.error('Update Password Error:', err);
error(res, '服务器错误');
}
}
}
module.exports = AuthController;

14
backend/controllers/studentController.js
View File

@@ -58,6 +58,20 @@ class StudentController {
error(res, '服务器错误');
}
}
static async getGradeStatistics(req, res) {
try {
const userId = req.session.user.id;
const data = await StudentService.getGradeStatistics(userId);
success(res, data);
} catch (err) {
if (err.message === '学生信息不存在') {
return error(res, err.message, 404);
}
console.error('Get Grade Statistics Error:', err);
error(res, '服务器错误');
}
}
}
module.exports = StudentController;

7
backend/models/User.js
View File

@@ -28,6 +28,13 @@ class User {
static async verifyPassword(plainPassword, hashedPassword) {
return await bcrypt.compare(plainPassword, hashedPassword);
}
static async updatePassword(id, newPassword) {
const salt = await bcrypt.genSalt(10);
const hashedPassword = await bcrypt.hash(newPassword, salt);
await db.query('UPDATE users SET password = ? WHERE id = ?', [hashedPassword, id]);
return true;
}
}
module.exports = User;

2
backend/routes/auth.js
View File

@@ -1,10 +1,12 @@
const express = require('express');
const router = express.Router();
const AuthController = require('../controllers/authController');
const { requireAuth } = require('../middleware/auth');
router.post('/login', AuthController.login);
router.post('/register', AuthController.register);
router.post('/logout', AuthController.logout);
router.get('/me', AuthController.getCurrentUser);
router.put('/update-password', requireAuth, AuthController.updatePassword);
module.exports = router;

1
backend/routes/student.js
View File

@@ -5,6 +5,7 @@ const { requireAuth, requireRole } = require('../middleware/auth');
router.get('/courses', requireAuth, requireRole(['student']), StudentController.getCourses);
router.get('/courses/:id', requireAuth, requireRole(['student']), StudentController.getCourseDetails);
router.get('/statistics', requireAuth, requireRole(['student']), StudentController.getGradeStatistics);
router.get('/grades', requireAuth, requireRole(['student']), StudentController.getGrades);
router.get('/grades/:id', requireAuth, requireRole(['student']), StudentController.getGradeDetails);

3
backend/server.js
View File

@@ -99,6 +99,9 @@ app.get('/student/dashboard', requirePageAuth, requirePageRole(['student']), (re
app.get('/student/my-courses', requirePageAuth, requirePageRole(['student']), (req, res) => {
res.sendFile(path.join(__dirname, '../frontend/views/student/my_courses.html'));
});
app.get('/student/grade-analysis', requirePageAuth, requirePageRole(['student']), (req, res) => {
res.sendFile(path.join(__dirname, '../frontend/views/student/grade_analysis.html'));
});
app.get('/student/profile', requirePageAuth, requirePageRole(['student']), (req, res) => {
res.sendFile(path.join(__dirname, '../frontend/views/student/profile.html'));
});

18
backend/services/authService.js
View File

@@ -1,5 +1,6 @@
const User = require('../models/User');
const Student = require('../models/Student');
const db = require('../config/database');
class AuthService {
static async login(id, password, role) {
@@ -55,7 +56,20 @@ class AuthService {
return newUser;
}
static async updatePassword(userId, oldPassword, newPassword) {
const user = await User.findById(userId);
if (!user) {
throw new Error('用户不存在');
}
const isValid = await User.verifyPassword(oldPassword, user.password);
if (!isValid) {
throw new Error('原密码错误');
}
return await User.updatePassword(userId, newPassword);
}
}
const db = require('../config/database'); // 补充引用
module.exports = AuthService;
module.exports = AuthService;

95
backend/services/studentService.js
View File

@@ -1,6 +1,7 @@
const Score = require('../models/Score');
const Student = require('../models/Student');
const Course = require('../models/Course');
const db = require('../config/database');
class StudentService {
static async getStudentCourses(userId) {
@@ -65,6 +66,100 @@ class StudentService {
}
return grade;
}
static async getGradeStatistics(userId) {
const student = await Student.findById(userId);
if (!student) {
throw new Error('学生信息不存在');
}
const sql = `
SELECT g.total_score as score, g.grade_point, g.grade_level,
c.course_name, CAST(c.credit AS CHAR) as credit, c.semester, c.academic_year, c.category
FROM grades g
JOIN courses c ON g.course_id = c.id
WHERE g.student_id = ?
ORDER BY c.semester ASC
`;
const grades = await db.query(sql, [userId]);
// 1. 学期 GPA 趋势
const semesterGPA = {};
// 5. 课程类别分析
const categoryStats = {};
grades.forEach(g => {
// console.log('Processing grade:', g);
// 学期统计
const semester = g.semester || '未知学期';
if (!semesterGPA[semester]) {
semesterGPA[semester] = { totalGP: 0, totalCredits: 0 };
}
const credit = parseFloat(g.credit || 0);
semesterGPA[semester].totalGP += parseFloat(g.grade_point || 0) * credit;
semesterGPA[semester].totalCredits += credit;
// 类别统计
const catName = g.category || '其他';
if (!categoryStats[catName]) {
categoryStats[catName] = { totalGP: 0, totalCredits: 0 };
}
categoryStats[catName].totalGP += parseFloat(g.grade_point || 0) * credit;
categoryStats[catName].totalCredits += credit;
});
const trend = Object.keys(semesterGPA).map(semester => ({
semester,
gpa: (semesterGPA[semester].totalGP / semesterGPA[semester].totalCredits).toFixed(2)
}));
const categories = Object.keys(categoryStats).map(cat => {
const stats = categoryStats[cat];
const gpa = stats.totalCredits > 0 ? (stats.totalGP / stats.totalCredits).toFixed(2) : '0.00';
return {
category: cat,
gpa: gpa,
totalCredits: Number(stats.totalCredits) || 0
};
});
// 2. 成绩等第分布
const distribution = {
'A': 0, 'B': 0, 'C': 0, 'D': 0, 'F': 0
};
grades.forEach(g => {
if (distribution[g.grade_level] !== undefined) {
distribution[g.grade_level]++;
}
});
// 3. 学分进度
let earnedCredits = 0;
grades.forEach(g => {
const score = parseFloat(g.score || 0);
const credit = parseFloat(g.credit || 0);
if (score >= 60) {
earnedCredits += credit;
}
});
// 4. 每学期学分详情
const semesterCredits = Object.keys(semesterGPA).map(semester => ({
semester,
credits: semesterGPA[semester].totalCredits
}));
return {
trend,
distribution,
categories,
credits: {
earned: earnedCredits,
target: 160 // 假设目标学分为 160
},
semesterCredits
};
}
}
module.exports = StudentService;