From 35fb6e6bff95d9f70b2faf43b4b30dc9527e54a3 Mon Sep 17 00:00:00 2001
From: pzrxqba79 <1994211138@qq.com>
Date: Fri, 11 Oct 2024 14:27:42 +0800
Subject: [PATCH] Add qs.py

---
 qs.py | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 qs.py

diff --git a/qs.py b/qs.py
new file mode 100644
index 0000000..e00ec0f
--- /dev/null
+++ b/qs.py
@@ -0,0 +1,83 @@
+const express = require('express');
+const cors = require('cors');
+const morgan = require('morgan');
+const rateLimit = require('express-rate-limit');
+const { body, validationResult } = require('express-validator');
+
+// 创建 Express 应用实例
+const app = express();
+const PORT = 3000; // 可以根据需要修改端口
+
+// 使用中间件
+app.use(cors()); // 允许跨域请求
+app.use(express.json()); // 解析 JSON 请求体
+app.use(morgan('combined')); // 记录请求日志
+
+// 请求速率限制
+const limiter = rateLimit({
+    windowMs: 15 * 60 * 1000, // 15分钟
+    max: 100 // 每个IP最多100个请求
+});
+app.use(limiter);
+
+// 模拟的用户数据（在实际应用中，这通常来自数据库）
+const users = [
+    { username: 'user1', password: 'password1' },
+    { username: 'user2', password: 'password2' }
+];
+
+// 模拟的数据
+const data = {
+    title: "欢迎使用系统",
+    description: "这是一个模拟的系统，用于展示数据与交互"
+};
+
+// 登录接口
+app.post('/api/login', [
+    body('username').isString().notEmpty(),
+    body('password').isString().notEmpty()
+], (req, res) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) {
+        return res.status(400).json({ errors: errors.array() });
+    }
+
+    const { username, password } = req.body;
+    const user = users.find(u => u.username === username && u.password === password);
+
+    if (user) {
+        return res.status(200).json({ message: 'Login successful!' });
+    } else {
+        return res.status(401).json({ message: 'Invalid username or password.' });
+    }
+});
+
+// 获取数据接口
+app.get('/api/data', (req, res) => {
+    return res.status(200).json(data);
+});
+
+// 提交成绩接口
+app.post('/api/submit-grade', [
+    body('grade').isNumeric()
+], (req, res) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) {
+        return res.status(400).json({ errors: errors.array() });
+    }
+
+    const { grade } = req.body;
+    console.log(`Received grade: ${grade}`);
+    return res.status(200).json({ message: 'Grade submitted successfully!', grade });
+});
+
+// 全局错误处理
+app.use((err, req, res, next) => {
+    console.error(err.stack);
+    res.status(500).send('Something broke!');
+});
+
+// 启动服务器
+app.listen(PORT, () => {
+    console.log(`Server is running on http://localhost:${PORT}`);
+});
\ No newline at end of file