first commit

2025-12-21 21:50:37 +08:00
commit 352698044b
30 changed files with 9893 additions and 0 deletions
--- a/backend/routes/student.js
+++ b/backend/routes/student.js
@@ -0,0 +1,143 @@
+const express = require('express');
+const router = express.Router();
+const db = require('../config/database');
+const { requireAuth, requireRole } = require('../middleware/auth');
+
+// 获取学生成绩
+router.get('/grades', requireAuth, requireRole(['student']), async (req, res) => {
+    try {
+        const userId = req.session.user.id;
+        
+        // 获取学生信息
+        const students = await db.pool.execute(
+            'SELECT id FROM students WHERE user_id = ?',
+            [userId]
+        );
+        
+        if (students[0].length === 0) {
+            return res.status(404).json({ 
+                success: false, 
+                message: '学生信息不存在' 
+            });
+        }
+        
+        const studentId = students[0][0].id;
+        
+        // 获取成绩信息
+        const grades = await db.pool.execute(`
+            SELECT s.*, c.course_code, c.course_name, c.credit,
+                   u.name as teacher_name
+            FROM scores s
+            JOIN courses c ON s.course_id = c.id
+            JOIN users u ON s.teacher_id = u.id
+            WHERE s.student_id = ?
+            ORDER BY s.exam_date DESC
+        `, [studentId]);
+        
+        // 计算统计信息
+        let totalCredits = 0;
+        let totalGradePoints = 0;
+        let totalCourses = grades.length;
+        
+        grades.forEach(grade => {
+            totalCredits += parseFloat(grade.credit);
+            if (grade.grade_point) {
+                totalGradePoints += parseFloat(grade.grade_point) * parseFloat(grade.credit);
+            }
+        });
+        
+        const gpa = totalCredits > 0 ? (totalGradePoints / totalCredits).toFixed(2) : 0;
+        
+        res.json({
+            success: true,
+            grades,
+            statistics: {
+                totalCourses,
+                totalCredits,
+                gpa,
+                averageScore: totalCourses > 0 ? 
+                    (grades.reduce((sum, g) => sum + parseFloat(g.score || 0), 0) / totalCourses).toFixed(1) : 0
+            }
+        });
+        
+    } catch (error) {
+        console.error('获取成绩错误:', error);
+        res.status(500).json({ 
+            success: false, 
+            message: '服务器错误' 
+        });
+    }
+});
+
+// 获取成绩详情
+router.get('/grades/:id', requireAuth, requireRole(['student']), async (req, res) => {
+    try {
+        const gradeId = req.params.id;
+        const userId = req.session.user.id;
+        
+        const grades = await db.pool.execute(`
+            SELECT s.*, c.course_code, c.course_name, c.credit, c.semester,
+                   u.full_name as teacher_name, u.email as teacher_email,
+                   st.student_id as student_number, st.class_name, st.major
+            FROM scores s
+            JOIN courses c ON s.course_id = c.id
+            JOIN users u ON s.teacher_id = u.id
+            JOIN students st ON s.student_id = st.id
+            WHERE s.id = ? AND st.user_id = ?
+        `, [gradeId, userId]);
+        
+        if (grades[0].length === 0) {
+            return res.status(404).json({ 
+                success: false, 
+                message: '成绩不存在' 
+            });
+        }
+        
+        res.json({
+            success: true,
+            grade: grades[0]
+        });
+        
+    } catch (error) {
+        console.error('获取成绩详情错误:', error);
+        res.status(500).json({ 
+            success: false, 
+            message: '服务器错误' 
+        });
+    }
+});
+
+// 获取学生个人信息
+router.get('/profile', requireAuth, requireRole(['student']), async (req, res) => {
+    try {
+        const userId = req.session.user.id;
+        
+        const students = await db.pool.execute(`
+            SELECT s.*, u.username, u.email, u.created_at as account_created
+            FROM students s
+            JOIN users u ON s.user_id = u.id
+            WHERE u.id = ?
+        `, [userId]);
+        
+        if (students[0].length === 0) {
+            return res.status(404).json({ 
+                success: false, 
+                message: '学生信息不存在' 
+            });
+        }
+        
+        res.json({
+            success: true,
+            profile: students[0]
+        });
+        
+    } catch (error) {
+        console.error('获取个人信息错误:', error);
+        res.status(500).json({ 
+            success: false, 
+            message: '服务器错误' 
+        });
+    }
+});
+
+module.exports = router;