feat: 添加学生个人中心页面和数据库备份功能

refactor(auth): 重构认证模块适配Bootstrap 5样式
feat(controller): 在登录响应中返回用户对象
feat(server): 添加学生个人中心路由
refactor(models): 重构学生和成绩模型结构
style: 更新登录和注册页面UI设计
chore: 添加数据库备份脚本和空备份文件

backend/controllers/authController.js

@@ -14,7 +14,7 @@ class AuthController {
             // 设置 Session
             req.session.user = user;
             
-            success(res, user, '登录成功');
+            success(res, { user }, '登录成功');
         } catch (err) {
             if (err.message === '用户名或密码错误') {
                 return error(res, err.message, 401);

backend/models/Score.js

@@ -3,9 +3,11 @@ const db = require('../config/database');
 class Score {
     static async findByStudentId(studentId) {
         const sql = `
-            SELECT s.*, c.course_code, c.course_name, c.credit,
+            SELECT s.id, s.student_id, s.course_id, s.teacher_id, 
+                   s.total_score as score, s.grade_point, s.grade_level, s.created_at,
+                   c.course_code, c.course_name, c.credit,
                    u.name as teacher_name
-            FROM scores s
+            FROM grades s
             JOIN courses c ON s.course_id = c.id
             JOIN users u ON s.teacher_id = u.id
             WHERE s.student_id = ?
@@ -16,10 +18,13 @@ class Score {
 
     static async findDetailsById(scoreId, studentId) {
         const sql = `
-            SELECT s.*, c.course_code, c.course_name, c.credit, c.semester,
+            SELECT s.id, s.student_id, s.course_id, s.teacher_id,
+                   s.usual_score, s.midterm_score, s.final_score, s.total_score as score,
+                   s.grade_point, s.grade_level, s.created_at, s.remark,
+                   c.course_code, c.course_name, c.credit, c.semester,
                    u.name as teacher_name, u.email as teacher_email,
                    st.id as student_number, st.class as class_name
-            FROM scores s
+            FROM grades 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
@@ -30,22 +35,23 @@ class Score {
     }
 
     static async create(scoreData) {
-        const { studentId, courseId, teacherId, score, gradePoint, gradeLevel, examDate, remark } = scoreData;
+        const { studentId, courseId, teacherId, score, gradePoint, gradeLevel, remark } = scoreData;
+        // 既然TeacherService只传了score，我们默认把它作为 final_score 和 total_score
+        // 如果需要支持平时分/期中分，需要修改前端和Controller
         const sql = `
-            INSERT INTO scores (student_id, course_id, teacher_id, score, 
+            INSERT INTO grades (student_id, course_id, teacher_id, final_score, total_score, 
             grade_point, grade_level, created_at, remark) 
-            VALUES (?, ?, ?, ?, ?, ?, NOW(), ?)
+            VALUES (?, ?, ?, ?, ?, ?, ?, NOW(), ?)
         `;
-        // 注意：这里用 created_at 替代了 examDate，如果数据库有 examDate 列可以改回去
         const result = await db.pool.execute(sql, [
-            studentId, courseId, teacherId, score, gradePoint, gradeLevel, remark
+            studentId, courseId, teacherId, score, score, gradePoint, gradeLevel, remark
         ]);
         return result[0].insertId;
     }
 
     static async findByStudentAndCourse(studentId, courseId) {
         const rows = await db.query(
-            'SELECT * FROM scores WHERE student_id = ? AND course_id = ?',
+            'SELECT * FROM grades WHERE student_id = ? AND course_id = ?',
             [studentId, courseId]
         );
         return rows[0];

backend/models/Student.js

@@ -1,21 +1,16 @@
 const db = require('../config/database');
 
 class Student {
-    static async findByUserId(userId) {
-        const students = await db.query('SELECT * FROM students WHERE user_id = ?', [userId]);
-        return students[0];
-    }
-    
-    static async findById(studentId) {
-        const students = await db.query('SELECT * FROM students WHERE student_id = ?', [studentId]);
+    static async findById(id) {
+        const students = await db.query('SELECT * FROM students WHERE id = ?', [id]);
         return students[0];
     }
 
     static async create(studentData) {
-        const { id, name, className, userId } = studentData;
+        const { id, name, className } = studentData;
         await db.query(
-            'INSERT INTO students (id, name, class, user_id) VALUES (?, ?, ?, ?)',
-            [id, name, className, userId]
+            'INSERT INTO students (id, name, class) VALUES (?, ?, ?)',
+            [id, name, className]
         );
     }
 }

backend/scripts/backup.js

@@ -0,0 +1,62 @@
+const fs = require('fs');
+const path = require('path');
+const db = require('../config/database');
+
+async function backup() {
+    console.log('开始备份数据库...');
+    const backupDir = path.join(__dirname, '../../database');
+    const filename = `backup_${new Date().toISOString().replace(/[:.]/g, '-')}.sql`;
+    const filepath = path.join(backupDir, filename);
+
+    if (!fs.existsSync(backupDir)) {
+        fs.mkdirSync(backupDir, { recursive: true });
+    }
+
+    try {
+        const fileStream = fs.createWriteStream(filepath, { flags: 'a' });
+        
+        // 获取所有表
+        const tables = await db.query('SHOW TABLES');
+        const tableNames = tables.map(t => Object.values(t)[0]);
+
+        for (const tableName of tableNames) {
+            console.log(`正在备份表: ${tableName}`);
+            
+            // 1. 获取 CREATE TABLE 语句
+            const createRows = await db.query(`SHOW CREATE TABLE ${tableName}`);
+            const createTableSql = createRows[0]['Create Table'];
+            
+            fileStream.write(`\n\n-- Table structure for table \`${tableName}\`\n`);
+            fileStream.write(`DROP TABLE IF EXISTS \`${tableName}\`;\n`);
+            fileStream.write(`${createTableSql};\n`);
+
+            // 2. 获取数据
+            const rows = await db.query(`SELECT * FROM ${tableName}`);
+            if (rows.length > 0) {
+                fileStream.write(`\n-- Dumping data for table \`${tableName}\`\n`);
+                fileStream.write(`INSERT INTO \`${tableName}\` VALUES\n`);
+                
+                const values = rows.map(row => {
+                    const rowValues = Object.values(row).map(val => {
+                        if (val === null) return 'NULL';
+                        if (typeof val === 'number') return val;
+                        // 转义单引号和反斜杠
+                        return `'${String(val).replace(/\\/g, '\\\\').replace(/'/g, "\\'")}'`;
+                    });
+                    return `(${rowValues.join(', ')})`;
+                });
+                
+                fileStream.write(values.join(',\n') + ';\n');
+            }
+        }
+
+        fileStream.end();
+        console.log(`备份完成! 文件保存在: ${filepath}`);
+        process.exit(0);
+    } catch (error) {
+        console.error('备份失败:', error);
+        process.exit(1);
+    }
+}
+
+backup();

backend/server.js

@@ -96,6 +96,9 @@ app.get('/dashboard', requirePageAuth, (req, res) => {
 app.get('/student/dashboard', requirePageAuth, requirePageRole(['student']), (req, res) => {
     res.sendFile(path.join(__dirname, '../frontend/views/student/dashboard.html'));
 });
+app.get('/student/profile', requirePageAuth, requirePageRole(['student']), (req, res) => {
+    res.sendFile(path.join(__dirname, '../frontend/views/student/profile.html'));
+});
 
 // Teacher Pages
 const teacherPageRouter = express.Router();