feat: 实现成绩管理系统核心功能
添加响应工具、错误处理中间件和数据库模型 创建用户、学生、课程和成绩相关服务 实现管理员、教师和学生控制器的基本功能 重构路由处理并优化数据库查询
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祀梦
@@ -1,311 +1,9 @@
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const express = require('express');
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const router = express.Router();
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const db = require('../config/database');
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const AdminController = require('../controllers/adminController');
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const { requireAuth, requireRole } = require('../middleware/auth');
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/**
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* 获取所有用户
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*/
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router.get('/users', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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const { page = 1, limit = 10, search = '', role = '' } = req.query;
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const offset = (page - 1) * limit;
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let query = 'SELECT id, name, role, class, created_at FROM users WHERE 1=1';
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let params = [];
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if (search) {
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query += ' AND (id LIKE ? OR name LIKE ? OR class LIKE ?)';
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const searchTerm = `%${search}%`;
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params.push(searchTerm, searchTerm, searchTerm);
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}
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if (role) {
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query += ' AND role = ?';
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params.push(role);
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}
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// 获取总数
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const countQuery = query.replace('SELECT id, name, role, class, created_at', 'SELECT COUNT(*) as total');
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const countResult = await db.pool.execute(countQuery, params);
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const total = countResult[0][0].total;
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// 获取分页数据
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query += ' ORDER BY created_at DESC LIMIT ? OFFSET ?';
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params.push(parseInt(limit), parseInt(offset));
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const users = await db.pool.execute(query, params);
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res.json({
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success: true,
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data: users,
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pagination: {
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page: parseInt(page),
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limit: parseInt(limit),
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total,
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pages: Math.ceil(total / limit)
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}
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});
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} catch (error) {
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console.error('获取用户列表错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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/**
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* 创建用户
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*/
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router.post('/users', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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const { id, name, password, role, className } = req.body;
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// 输入验证
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if (!id || !name || !password || !role) {
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return res.status(400).json({
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success: false,
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message: '请填写所有必填字段'
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});
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}
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// 检查用户ID是否存在
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const existingUsers = await db.pool.execute(
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'SELECT id FROM users WHERE id = ?',
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[id]
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);
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if (existingUsers[0].length > 0) {
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return res.status(400).json({
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success: false,
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message: '用户ID已存在'
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});
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}
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// 哈希密码
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const bcrypt = require('bcrypt');
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const salt = await bcrypt.genSalt(10);
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const passwordHash = await bcrypt.hash(password, salt);
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// 创建用户
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const result = await db.pool.execute(
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'INSERT INTO users (id, name, password, role, class) VALUES (?, ?, ?, ?, ?)',
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[id, name, passwordHash, role, className || null]
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);
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const userId = result[0].insertId;
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// 根据角色创建相关记录
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if (role === 'student') {
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const studentId = 'STU' + Date.now().toString().slice(-6);
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await db.pool.execute(
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'INSERT INTO students (user_id, student_id, full_name, class_name) VALUES (?, ?, ?, ?)',
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[userId, studentId, fullName, className || '未分配班级']
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);
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} else if (role === 'teacher') {
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await db.pool.execute(
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'INSERT INTO teachers (user_id, full_name) VALUES (?, ?)',
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[userId, fullName]
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);
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}
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res.json({
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success: true,
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message: '用户创建成功',
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userId
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});
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} catch (error) {
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console.error('创建用户错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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/**
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* 更新用户
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*/
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router.put('/users/:id', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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const userId = req.params.id;
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const { name, role, className } = req.body;
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// 检查用户是否存在
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const users = await db.pool.execute(
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'SELECT * FROM users WHERE id = ?',
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[userId]
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);
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if (users[0].length === 0) {
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return res.status(404).json({
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success: false,
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message: '用户不存在'
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});
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}
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const oldRole = users[0][0].role;
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// 更新用户信息
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await db.pool.execute(
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'UPDATE users SET name = ?, role = ?, class = ? WHERE id = ?',
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[name, role, className || null, userId]
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);
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// 如果角色改变，更新相关记录
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if (oldRole !== role) {
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// 删除旧角色的记录
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if (oldRole === 'student') {
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await db.pool.execute('DELETE FROM students WHERE user_id = ?', [userId]);
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} else if (oldRole === 'teacher') {
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await db.pool.execute('DELETE FROM teachers WHERE user_id = ?', [userId]);
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}
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// 创建新角色的记录
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if (role === 'student') {
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await db.pool.execute(
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'INSERT INTO students (user_id, class) VALUES (?, ?)',
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[userId, className || null]
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);
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} else if (role === 'teacher') {
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// 教师不需要额外表
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}
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} else if (role === 'student' && className) {
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// 如果是学生且班级有变化，更新班级
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await db.pool.execute(
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'UPDATE students SET class = ? WHERE user_id = ?',
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[className, userId]
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);
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}
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res.json({
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success: true,
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message: '用户更新成功'
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});
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} catch (error) {
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console.error('更新用户错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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/**
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* 删除用户
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*/
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router.delete('/users/:id', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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const userId = req.params.id;
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// 检查用户是否存在
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const users = await db.pool.execute(
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'SELECT role FROM users WHERE id = ?',
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[userId]
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);
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if (users[0].length === 0) {
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return res.status(404).json({
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success: false,
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message: '用户不存在'
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});
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}
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const userRole = users[0][0].role;
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// 删除相关记录
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if (userRole === 'student') {
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await db.pool.execute('DELETE FROM students WHERE user_id = ?', [userId]);
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} else if (userRole === 'teacher') {
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await db.pool.execute('DELETE FROM teachers WHERE user_id = ?', [userId]);
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}
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// 删除用户
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await db.pool.execute('DELETE FROM users WHERE id = ?', [userId]);
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res.json({
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success: true,
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message: '用户删除成功'
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});
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} catch (error) {
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console.error('删除用户错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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/**
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* 获取所有班级
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*/
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router.get('/classes', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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const classes = await db.pool.execute(
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'SELECT DISTINCT class_name FROM students ORDER BY class_name'
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);
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res.json({
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success: true,
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data: classes
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});
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} catch (error) {
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console.error('获取班级列表错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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/**
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* 获取统计数据
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*/
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router.get('/stats', requireAuth, requireRole(['admin']), async (req, res) => {
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try {
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// 用户统计
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const userStats = await db.pool.execute(
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'SELECT role, COUNT(*) as count FROM users GROUP BY role'
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);
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// 班级统计
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const classStats = await db.pool.execute(
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'SELECT class_name, COUNT(*) as count FROM students GROUP BY class_name'
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);
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// 课程统计
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const courseStats = await db.pool.execute(
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'SELECT COUNT(*) as total_courses FROM courses'
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);
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// 成绩统计
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const gradeStats = await db.pool.execute(
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'SELECT COUNT(*) as total_grades FROM scores'
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);
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res.json({
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success: true,
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data: {
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users: userStats[0],
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classes: classStats[0],
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total_courses: courseStats[0][0].total_courses,
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total_grades: gradeStats[0][0].total_grades
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}
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});
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} catch (error) {
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console.error('获取统计数据错误:', error);
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res.status(500).json({
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success: false,
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message: '服务器错误'
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});
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}
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});
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router.get('/users', requireAuth, requireRole(['admin']), AdminController.getUsers);
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router.post('/users', requireAuth, requireRole(['admin']), AdminController.createUser);
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module.exports = router;
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