如何构建一个高效的数字化校园系统？

数字化校园的源码涉及多个方面，包括前端界面、后端服务器、数据库设计以及可能的移动应用等，以下是一个较为详细的数字化校园项目的基本结构和关键部分的源码示例，这只是一个简化的示例，实际项目可能会更加复杂和庞大。

1. 项目结构

digitalcampus/
├── frontend/                    # 前端代码
│   ├── public/                  # 静态资源
│   ├── src/                     # 源代码
│   │   ├── components/          # 组件
│   │   ├── pages/               # 页面
│   │   ├── App.js               # 主入口文件
│   │   ├── index.js              # 主入口文件
│   ├── package.json             # 前端依赖配置
├── backend/                     # 后端代码
│   ├── controllers/             # 控制器
│   ├── models/                  # 数据模型
│   ├── routes/                  # 路由
│   ├── app.js                   # 主入口文件
│   ├── package.json             # 后端依赖配置
├── database/                    # 数据库脚本
│   ├── schema.sql               # 数据库表结构
├── README.md                    # 项目说明文档

2. 前端代码 (React)

frontend/src/App.js

import React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'reactrouterdom';
import HomePage from './pages/HomePage';
import LoginPage from './pages/LoginPage';
import DashboardPage from './pages/DashboardPage';
import PrivateRoute from './components/PrivateRoute';
function App() {
  return (
    <Router>
      <Switch>
        <Route exact path="/" component={HomePage} />
        <Route path="/login" component={LoginPage} />
        <PrivateRoute path="/dashboard" component={DashboardPage} />
      </Switch>
    </Router>
  );
}
export default App;

frontend/src/pages/HomePage.js

import React from 'react';
function HomePage() {
  return (
    <div>
      <h1>Welcome to Digital Campus</h1>
      <p>Your onestop solution for campus management and services.</p>
    </div>
  );
}
export default HomePage;

3. 后端代码 (Node.js + Express)

backend/app.js

const express = require('express');
const bodyParser = require('bodyparser');
const cors = require('cors');
const mongoose = require('mongoose');
const userRoutes = require('./routes/userRoutes');
const authRoutes = require('./routes/authRoutes');
const dashboardRoutes = require('./routes/dashboardRoutes');
const app = express();
// Middleware
app.use(bodyParser.json());
app.use(cors());
// Database connection
mongoose.connect('mongodb://localhost:27017/digitalcampus', { useNewUrlParser: true, useUnifiedTopology: true });
// Routes
app.use('/api/users', userRoutes);
app.use('/api/auth', authRoutes);
app.use('/api/dashboard', dashboardRoutes);
// Start server
const port = process.env.PORT || 5000;
app.listen(port, () => console.log(Server running on port ${port}));

backend/routes/userRoutes.js

const express = require('express');
const router = express.Router();
const UserController = require('../controllers/UserController');
router.post('/register', UserController.register);
router.post('/login', UserController.login);
module.exports = router;

backend/controllers/UserController.js

const User = require('../models/User');
const bcrypt = require('bcryptjs');
const jwt = require('jsonwebtoken');
exports.register = async (req, res) => {
  try {
    const { name, email, password } = req.body;
    const hashedPassword = await bcrypt.hash(password, 10);
    const newUser = new User({ name, email, password: hashedPassword });
    await newUser.save();
    res.status(201).send({ message: 'User registered successfully' });
  } catch (error) {
    res.status(500).send({ error: error.message });
  }
};
exports.login = async (req, res) => {
  try {
    const { email, password } = req.body;
    const user = await User.findOne({ email });
    if (!user) {
      return res.status(404).send({ error: 'User not found' });
    }
    const isMatch = await bcrypt.compare(password, user.password);
    if (!isMatch) {
      return res.status(400).send({ error: 'Invalid credentials' });
    }
    const token = jwt.sign({ id: user._id }, 'your_jwt_secret', { expiresIn: '1h' });
    res.send({ token });
  } catch (error) {
    res.status(500).send({ error: error.message });
  }
};

4. 数据库设计 (MongoDB)

database/schema.sql (虽然使用SQL，但这里假设是Mongoose Schema)

const mongoose = require('mongoose');
const UserSchema = new mongoose.Schema({
  name: { type: String, required: true },
  email: { type: String, required: true, unique: true },
  password: { type: String, required: true }
});
module.exports = mongoose.model('User', UserSchema);

5. 其他重要部分

frontend/package.json

{
  "name": "digitalcampusfrontend",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "react": "^17.0.2",
    "reactdom": "^17.0.2",
    "reactrouterdom": "^5.2.0",
    "axios": "^0.21.1"
  },
  "scripts": {
    "start": "reactscripts start",
    "build": "reactscripts build",
    "test": "reactscripts test",
    "eject": "reactscripts eject"
  }
}

backend/package.json

{
  "name": "digitalcampusbackend",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "express": "^4.17.1",
    "bodyparser": "^1.19.0",
    "cors": "^2.8.5",
    "mongoose": "^5.11.15",
    "bcryptjs": "^2.4.3",
    "jsonwebtoken": "^8.5.1"
  },
  "scripts": {
    "start": "node app.js"
  }
}

这个示例涵盖了一个基本的数字化校园项目的核心部分，根据具体需求，还可以添加更多功能，如课程管理、学生成绩管理、通知系统等。