Compare commits
36 Commits
@ -1,86 +1,199 @@
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>回答问题</title>
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<style>
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body {
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font-family: 'Arial', sans-serif;
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height: 100vh;
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margin: 0;
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display: flex;
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justify-content: center;
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align-items: center;
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background: linear-gradient(135deg, #6e45e2, #88d3ce);
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color: white;
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}
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.container {
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text-align: center;
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background-color: rgba(255, 255, 255, 0.1);
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padding: 30px;
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border-radius: 15px;
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box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
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}
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#question {
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font-size: 2em;
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margin-bottom: 20px;
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}
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button {
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padding: 12px 30px;
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font-size: 1.1em;
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border: none;
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border-radius: 50px;
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background-color: #ff5722;
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color: white;
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cursor: pointer;
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box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
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transition: background-color 0.3s ease, box-shadow 0.3s ease;
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margin: 10px;
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}
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button:hover {
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background-color: #ff3d00;
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box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div id="question">你需要回答问题 结果是：</div>
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<button id="correctButton">正确</button>
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<button id="wrongButton">错误</button>
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<button class="back-button" onclick="window.location.href='select.html'">返回点名页面</button>
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<div id="result"></div>
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</div>
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<script>
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const urlParams = new URLSearchParams(window.location.search);
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const name = urlParams.get('name');
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const correctButton = document.querySelector('#correctButton');
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const wrongButton = document.querySelector('#wrongButton');
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const resultDisplay = document.querySelector('#result');
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// 初始化积分
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let userPoints = parseInt(localStorage.getItem(name));
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// 正确答案处理
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correctButton.addEventListener('click', () => {
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userPoints += 10; // 正确回答加 10 分
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localStorage.setItem(name, userPoints); // 保存更新后的积分
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resultDisplay.textContent = `正确！${name} 的当前积分: ${userPoints}`;
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});
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// 错误答案处理
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wrongButton.addEventListener('click', () => {
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userPoints -= 5;
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localStorage.setItem(name, userPoints); // 保存更新后的积分
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resultDisplay.textContent = `错误！${name} 的当前积分: ${userPoints}`;
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});
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</script>
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</body>
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</html>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>回答问题</title>
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<style>
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body {
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font-family: 'Arial', sans-serif;
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height: 100vh;
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margin: 0;
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display: flex;
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justify-content: center;
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align-items: center;
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background: linear-gradient(135deg, #6e45e2, #88d3ce);
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color: white;
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}
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.container {
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text-align: center;
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background-color: rgba(255, 255, 255, 0.1);
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padding: 30px;
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border-radius: 15px;
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box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
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}
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#question {
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font-size: 2em;
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margin-bottom: 20px;
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}
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button {
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padding: 12px 30px;
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font-size: 1.1em;
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border: none;
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border-radius: 50px;
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background-color: #ff5722;
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color: white;
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cursor: pointer;
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box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
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transition: background-color 0.3s ease, box-shadow 0.3s ease;
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margin: 10px;
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}
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button:hover {
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background-color: #ff3d00;
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box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div id="question">请重复问题，选择正确或错误：</div>
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<button id="repeatCorrectButton">准确重复</button>
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<button id="repeatWrongButton">未准确重复</button>
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<div id="questionResult"></div> <!-- 显示重复问题的结果 -->
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<div id="answerContainer" style="display:none;">
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<p>现在回答问题：</p>
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<button id="correctButton">回答正确</button>
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<button id="partiallyCorrectButton">部分正确</button>
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<button id="wrongButton">回答错误</button>
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</div>
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<button class="back-button" onclick="window.location.href='select.html'">返回点名页面</button>
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<div id="result"></div>
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<div id="studentInfo"></div> <!-- 显示学生信息 -->
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</div>
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<script>
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async function updateScore(student_id, points) {
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try {
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const response = await fetch('/api/update-score', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ student_id, points }),
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});
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if (!response.ok) {
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throw new Error('网络响应不正常');
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}
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const data = await response.text(); // 使用 text() 解析纯数字响应
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console.log('更新后的分数:', data); // data 是字符串形式的分数
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return data; // 返回更新后的分数字符串
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} catch (error) {
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console.error('分数更新失败:', error);
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return null;
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}
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}
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const urlParams = new URLSearchParams(window.location.search);
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const student_name = urlParams.get('student_name');
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const student_id = urlParams.get('student_id');
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const repeatCorrectButton = document.querySelector('#repeatCorrectButton');
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const repeatWrongButton = document.querySelector('#repeatWrongButton');
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const questionResultDisplay = document.querySelector('#questionResult');
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const correctButton = document.querySelector('#correctButton');
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const partiallyCorrectButton = document.querySelector('#partiallyCorrectButton');
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const wrongButton = document.querySelector('#wrongButton');
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const resultDisplay = document.querySelector('#result');
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const answerContainer = document.querySelector('#answerContainer');
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const studentInfoDisplay = document.querySelector('#studentInfo');
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// 显示学生姓名和学号
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studentInfoDisplay.textContent = `学生: ${student_name} 学号: ${student_id}`;
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// 正确重复问题处理 +0.5
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repeatCorrectButton.addEventListener('click', () => {
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updateScore(student_id, 0.5)
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.then(newscore => {
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if (newscore !== null) {
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questionResultDisplay.textContent = `重复正确！${student_id} 的当前积分: ${newscore}`; // 直接使用字符串
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answerContainer.style.display = 'block'; // 显示回答问题部分
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} else {
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console.error('更新分数失败');
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questionResultDisplay.textContent = `更新分数失败，请重试。`;
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}
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})
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.catch(error => {
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console.error('请求失败:', error);
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questionResultDisplay.textContent = `更新分数失败，请重试。`;
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});
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});
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// 未准确重复问题处理 -1
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repeatWrongButton.addEventListener('click', () => {
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updateScore(student_id, -1)
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.then(newscore => {
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if (newscore !== null) {
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questionResultDisplay.textContent = `重复错误！${student_id} 的当前积分: ${newscore}`; // 直接使用字符串
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answerContainer.style.display = 'block'; // 显示回答问题部分
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} else {
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console.error('更新分数失败');
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questionResultDisplay.textContent = `更新分数失败，请重试。`;
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}
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})
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.catch(error => {
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console.error('请求失败:', error);
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questionResultDisplay.textContent = `更新分数失败，请重试。`;
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});
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});
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// 回答问题的处理
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correctButton.addEventListener('click', () => {
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updateScore(student_id, 3)
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.then(newscore => {
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if (newscore !== null) {
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resultDisplay.textContent = `回答完全正确！${student_id} 的当前积分: ${newscore}`; // 直接使用字符串
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} else {
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console.error('更新分数失败');
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resultDisplay.textContent = `更新分数失败，请重试。`;
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}
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})
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.catch(error => {
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console.error('请求失败:', error);
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resultDisplay.textContent = `更新分数失败，请重试。`;
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});
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});
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partiallyCorrectButton.addEventListener('click', () => {
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updateScore(student_id, 1.5)
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.then(newscore => {
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if (newscore !== null) {
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resultDisplay.textContent = `回答部分正确！${student_id} 的当前积分: ${newscore}`; // 直接使用字符串
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} else {
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console.error('更新分数失败');
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resultDisplay.textContent = `更新分数失败，请重试。`;
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}
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})
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.catch(error => {
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console.error('请求失败:', error);
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resultDisplay.textContent = `更新分数失败，请重试。`;
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});
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});
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wrongButton.addEventListener('click', () => {
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updateScore(student_id, 0.5)
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.then(newscore => {
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if (newscore !== null) {
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resultDisplay.textContent = `回答基本正确！${student_id} 的当前积分: ${newscore}`; // 直接使用字符串
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} else {
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console.error('更新分数失败');
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resultDisplay.textContent = `更新分数失败，请重试。`;
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}
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})
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.catch(error => {
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console.error('请求失败:', error);
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resultDisplay.textContent = `更新分数失败，请重试。`;
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});
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});
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</script>
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</body>
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</html>
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@ -0,0 +1,65 @@
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const fs = require('fs');
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const path = require('path');
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const xlsx = require('xlsx');
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const pool = require('../db');
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const classManager = {
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addClass: async (req, res) => {
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// 创建students表的SQL语句
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const createTableQuery = `
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CREATE TABLE IF NOT EXISTS students (
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student_id INT AUTO_INCREMENT PRIMARY KEY,
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student_name VARCHAR(255) NOT NULL,
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score DECIMAL(5, 2),
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call_count INT DEFAULT 0
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);
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`;
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try {
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// 先创建表
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await pool.query(createTableQuery);
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const filePath = req.file.path;
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// 读取并解析Excel文件
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const workbook = xlsx.readFile(filePath);
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const sheetName = workbook.SheetNames[0];
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const worksheet = workbook.Sheets[sheetName];
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const students = xlsx.utils.sheet_to_json(worksheet);
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// 定义所需的字段
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const requiredFields = ['student_id','student_name'];
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let hasError = false;
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students.forEach(student => {
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// 数据验证
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const missingFields = requiredFields.filter(field =>!(field in student));
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if (missingFields.length > 0) {
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console.error(`Student data is missing fields: ${missingFields.join(', ')}`);
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hasError = true;
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return;
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}
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// 将学生数据插入数据库
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const query = 'INSERT INTO students (student_id, student_name, score, call_count) VALUES (?,?, 0, 0)';
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pool.query(query, [student.student_id, student.student_name], (error) => {
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if (error) {
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console.error(`Error inserting student: ${student.name}`, error);
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hasError = true;
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}
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});
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});
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if (hasError) {
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res.status(500).json({ message: 'Error adding class. Some students were not added successfully.' });
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} else {
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res.status(200).json({ message: 'Class added successfully!' });
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}
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} catch (err) {
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console.error('Error creating students table:', err);
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res.status(500).json({ message: 'Error creating table during class addition.' });
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}
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}
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};
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module.exports = classManager;
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@ -0,0 +1,24 @@
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const mysql = require('mysql2/promise');
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// 创建连接池
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const pool = mysql.createPool({
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host: 'localhost', // 数据库地址
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user: 'root', // 数据库用户名
|
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password: '123456', // 数据库密码
|
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database: 'class_k' ,// 使用的数据库
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waitForConnections: true,
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connectionLimit: 10,
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queueLimit: 0
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});
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|
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// 测试数据库连接
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pool.getConnection((err, connection) => {
|
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if (err) {
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console.error('Error connecting to the database:', err);
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} else {
|
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console.log('Database connected successfully!');
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connection.release(); // 释放连接
|
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}
|
||||
});
|
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module.exports = pool;
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@ -0,0 +1,22 @@
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const pool = require('../db');
|
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async function deleteTable(req, res) {
|
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const { tableName } = req.body; // 从请求体中获取表名
|
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let connection;
|
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|
||||
try {
|
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connection = await pool.getConnection();
|
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await connection.query(`DROP TABLE IF EXISTS ??`, [tableName]); // 删除表
|
||||
connection.release();
|
||||
res.json({ message: `表 ${tableName} 已被成功删除` });
|
||||
} catch (error) {
|
||||
console.error('删除表失败:', error);
|
||||
res.status(500).json({ error: '删除表失败' });
|
||||
} finally {
|
||||
if (connection) {
|
||||
connection.release();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
module.exports = { deleteTable };
|
||||
@ -1,135 +1,200 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>抽奖页面</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Arial', sans-serif;
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
background: linear-gradient(135deg, #6e45e2, #88d3ce);
|
||||
color: white;
|
||||
transition: background-color 0.5s ease;
|
||||
}
|
||||
.container {
|
||||
text-align: center;
|
||||
background-color: rgba(255, 255, 255, 0.1);
|
||||
padding: 30px;
|
||||
border-radius: 15px;
|
||||
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
|
||||
opacity: 1;
|
||||
transition: opacity 0.5s ease;
|
||||
}
|
||||
#pointsDisplay {
|
||||
font-size: 1.5em;
|
||||
margin-bottom: 20px;
|
||||
}
|
||||
button {
|
||||
padding: 12px 30px;
|
||||
font-size: 1.1em;
|
||||
border: none;
|
||||
border-radius: 50px;
|
||||
background-color: #ff5722;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
|
||||
transition: background-color 0.3s ease, box-shadow 0.3s ease;
|
||||
margin: 10px;
|
||||
}
|
||||
button:hover {
|
||||
background-color: #ff3d00;
|
||||
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
#loading {
|
||||
display: none;
|
||||
font-size: 1.5em;
|
||||
margin-top: 20px;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<div id="pointsDisplay">当前积分: </div>
|
||||
<button id="startLotteryButton">开始抽奖</button>
|
||||
<button class="back-button" id="backButton">返回前一页面</button>
|
||||
<div id="result"></div>
|
||||
<div id="loading">正在加载，请稍候...</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
const urlParams = new URLSearchParams(window.location.search);
|
||||
let name = urlParams.get('name');
|
||||
|
||||
// 如果 URL 中没有 name 参数，尝试从 localStorage 获取
|
||||
if (!name) {
|
||||
name = localStorage.getItem('currentUserName');
|
||||
}
|
||||
|
||||
const pointsDisplay = document.querySelector('#pointsDisplay');
|
||||
const startLotteryButton = document.querySelector('#startLotteryButton');
|
||||
const resultDisplay = document.querySelector('#result');
|
||||
const backButton = document.getElementById('backButton');
|
||||
const loadingIndicator = document.getElementById('loading');
|
||||
|
||||
// 睡眠函数，让页面跳转更自然
|
||||
function sleep(d) {
|
||||
return new Promise(resolve => setTimeout(resolve, d));
|
||||
}
|
||||
|
||||
// 获取该用户的积分
|
||||
let userPoints = parseInt(localStorage.getItem(name)) || 0;
|
||||
pointsDisplay.textContent = `${name} 的当前积分: ${userPoints}`;
|
||||
|
||||
// 设置返回按钮的 URL
|
||||
backButton.onclick = () => {
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
window.location.href = `choice.html?name=${encodeURIComponent(name)}`;
|
||||
};
|
||||
|
||||
// 抽奖逻辑
|
||||
startLotteryButton.addEventListener('click', async () => {
|
||||
if (userPoints >= 20) {
|
||||
userPoints -= 20; // 每次抽奖消耗 20 分
|
||||
localStorage.setItem(name, userPoints); // 保存更新后的积分
|
||||
pointsDisplay.textContent = `${name} 的当前积分: ${userPoints}`;
|
||||
|
||||
// 随机选择奖品
|
||||
const prizes = ["跳过权", "再来一次", "什么也没有发生", "加30积分且跳过"];
|
||||
const randomPrize = prizes[Math.floor(Math.random() * prizes.length)];
|
||||
resultDisplay.textContent = `你赢得了: ${randomPrize}`;
|
||||
|
||||
// 等待 2 秒以展示结果
|
||||
await sleep(2000);
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
|
||||
if (randomPrize === '跳过权') {
|
||||
await sleep(1000);
|
||||
window.location.href = `select.html?name=${encodeURIComponent(name)}`;
|
||||
} else if (randomPrize === '再来一次') {
|
||||
userPoints += 20;
|
||||
localStorage.setItem(name, userPoints);
|
||||
} else if (randomPrize === '什么也没有发生') {
|
||||
await sleep(1000);
|
||||
window.location.href = `answer.html?name=${encodeURIComponent(name)}`;
|
||||
} else if (randomPrize === '加30积分且跳过') {
|
||||
userPoints += 30;
|
||||
localStorage.setItem(name, userPoints);
|
||||
await sleep(1000);
|
||||
window.location.href = `select.html?name=${encodeURIComponent(name)}`;
|
||||
}
|
||||
} else {
|
||||
resultDisplay.textContent = "积分不足，无法抽奖！";
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
await sleep(1000);
|
||||
window.location.href = `answer.html?name=${encodeURIComponent(name)}`;
|
||||
}
|
||||
});
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>抽奖页面</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Arial', sans-serif;
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
background: linear-gradient(135deg, #6e45e2, #88d3ce);
|
||||
color: white;
|
||||
transition: background-color 0.5s ease;
|
||||
}
|
||||
.container {
|
||||
text-align: center;
|
||||
background-color: rgba(255, 255, 255, 0.1);
|
||||
padding: 30px;
|
||||
border-radius: 15px;
|
||||
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
|
||||
opacity: 1;
|
||||
transition: opacity 0.5s ease;
|
||||
}
|
||||
#pointsDisplay {
|
||||
font-size: 1.5em;
|
||||
margin-bottom: 20px;
|
||||
}
|
||||
button {
|
||||
padding: 12px 30px;
|
||||
font-size: 1.1em;
|
||||
border: none;
|
||||
border-radius: 50px;
|
||||
background-color: #ff5722;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
|
||||
transition: background-color 0.3s ease, box-shadow 0.3s ease;
|
||||
margin: 10px;
|
||||
}
|
||||
button:hover {
|
||||
background-color: #ff3d00;
|
||||
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
#loading {
|
||||
display: none;
|
||||
font-size: 1.5em;
|
||||
margin-top: 20px;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<div id="pointsDisplay">当前积分: </div>
|
||||
<button id="startLotteryButton">开始抽奖</button>
|
||||
<button class="back-button" id="backButton">返回前一页面</button>
|
||||
<div id="result"></div>
|
||||
<div id="loading">正在加载，请稍候...</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
const urlParams = new URLSearchParams(window.location.search);
|
||||
let student_name = urlParams.get('student_name');
|
||||
let student_id = urlParams.get('student_id');
|
||||
|
||||
const pointsDisplay = document.querySelector('#pointsDisplay');
|
||||
const startLotteryButton = document.querySelector('#startLotteryButton');
|
||||
const resultDisplay = document.querySelector('#result');
|
||||
const backButton = document.getElementById('backButton');
|
||||
const loadingIndicator = document.getElementById('loading');
|
||||
|
||||
// 睡眠函数，让页面跳转更自然
|
||||
function sleep(d) {
|
||||
return new Promise(resolve => setTimeout(resolve, d));
|
||||
}
|
||||
|
||||
// 全局变量，用于存储用户积分
|
||||
let userPoints = null;
|
||||
|
||||
// 获取该用户的分数
|
||||
const fetchStudentScore = async (student_id) => {
|
||||
try {
|
||||
const response = await fetch('http://localhost:3000/api/get-score', {
|
||||
method: 'POST', // 使用 POST 方法
|
||||
headers: {
|
||||
'Content-Type': 'application/json', // 设置请求体的内容类型
|
||||
},
|
||||
body: JSON.stringify({ student_id }), // 将 student_id 放入请求体
|
||||
});
|
||||
|
||||
if (!response.ok) {
|
||||
alert('分数获取失败');
|
||||
return null; // 返回 null 表示获取失败
|
||||
}
|
||||
|
||||
// 直接返回响应体中的数字
|
||||
const data = await response.json(); // 直接解析为 JSON
|
||||
const score = data.score;
|
||||
return score; // 返回数字
|
||||
} catch (error) {
|
||||
alert('网络请求失败');
|
||||
return null; // 返回 null 表示获取失败
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
// 更新用户分数
|
||||
async function updateScore(student_id, points) {
|
||||
try {
|
||||
const response = await fetch('http://localhost:3000/api/update-score', {
|
||||
method: 'POST',
|
||||
headers: {
|
||||
'Content-Type': 'application/json',
|
||||
},
|
||||
body: JSON.stringify({ student_id, points }),
|
||||
});
|
||||
|
||||
if (!response.ok) {
|
||||
throw new Error('网络响应不正常');
|
||||
}
|
||||
|
||||
// 使用 text() 解析响应，得到字符串形式的分数
|
||||
const data = await response.text();
|
||||
let score = Number(data); // 转换为数字
|
||||
return score; // 返回数字
|
||||
} catch (error) {
|
||||
console.error('分数更新失败:', error);
|
||||
return null; // 返回 null 表示更新失败
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// 初始化函数，用于设置用户积分
|
||||
async function init() {
|
||||
userPoints = await fetchStudentScore(student_id); // 获取分数并存储到全局变量
|
||||
pointsDisplay.textContent = `${student_name} 的当前积分: ${userPoints}`;
|
||||
}
|
||||
|
||||
// 执行初始化函数
|
||||
init();
|
||||
|
||||
// 设置返回按钮的 URL
|
||||
backButton.onclick = () => {
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
window.location.href = `choice.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
};
|
||||
|
||||
// 开始抽奖
|
||||
startLotteryButton.addEventListener('click', async () => {
|
||||
if (userPoints >= 2) {
|
||||
userPoints = await updateScore(student_id, -2); // 积分-2
|
||||
|
||||
pointsDisplay.textContent = `${student_name} 的当前积分: ${userPoints}`;
|
||||
|
||||
// 随机选择奖品
|
||||
const prizes = ["跳过权", "再来一次", "什么也没有发生", "加3积分且跳过"];
|
||||
const randomPrize = prizes[Math.floor(Math.random() * prizes.length)];
|
||||
resultDisplay.textContent = `你赢得了: ${randomPrize}`;
|
||||
|
||||
// 等待 2 秒以展示结果
|
||||
await new Promise(resolve => setTimeout(resolve, 2000));
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
|
||||
if (randomPrize === '跳过权') {
|
||||
await sleep(2000);
|
||||
window.location.href = `select.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
}
|
||||
|
||||
else if (randomPrize === '再来一次') {
|
||||
userPoints = await updateScore(student_id, 2); // 积分返回2
|
||||
await sleep(2000);
|
||||
window.location.href = `lottery.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
}
|
||||
|
||||
else if (randomPrize === '什么也没有发生') {
|
||||
await sleep(2000);
|
||||
window.location.href = `answer.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
}
|
||||
|
||||
else if (randomPrize === '加3积分且跳过') {
|
||||
userPoints = await updateScore(student_id, 3); // 积分+3
|
||||
await sleep(2000);
|
||||
window.location.href = `select.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
}
|
||||
|
||||
} else {
|
||||
resultDisplay.textContent = "积分不足，无法抽奖！返回回答问题";
|
||||
loadingIndicator.style.display = 'block'; // 显示加载提示
|
||||
await sleep(2000);
|
||||
window.location.href = `answer.html?student_name=${encodeURIComponent(student_name)}&student_id=${encodeURIComponent(student_id)}`;
|
||||
}
|
||||
});
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@ -0,0 +1,9 @@
|
||||
{
|
||||
"dependencies": {
|
||||
"body-parser": "^1.20.3",
|
||||
"express": "^4.21.0",
|
||||
"multer": "^1.4.5-lts.1",
|
||||
"mysql2": "^3.11.3",
|
||||
"xlsx": "^0.18.5"
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,47 @@
|
||||
const pool = require('../db');
|
||||
|
||||
async function selectStudent(req, res) {
|
||||
try {
|
||||
const connection = await pool.getConnection();
|
||||
|
||||
// 从数据库查询学生
|
||||
const [students] = await connection.query('SELECT * FROM students');
|
||||
|
||||
// 计算权重的总和（使用 softmax 权重计算）
|
||||
const totalWeight = students.reduce((acc, student) => acc + Math.exp(-student.score), 0);
|
||||
|
||||
// 将每个学生的权重归一化
|
||||
const weightedStudents = students.map(student => ({
|
||||
student,
|
||||
weight: Math.exp(-student.score) / totalWeight,
|
||||
}));
|
||||
|
||||
// 生成随机数
|
||||
const random = Math.random(); // 介于 0 和 1 之间
|
||||
let sum = 0; // 用于累加权重
|
||||
let selectedStudent = null;
|
||||
|
||||
// 遍历加权后的学生，累加权重，并判断随机数落在哪个学生的区间
|
||||
for (let i = 0; i < weightedStudents.length; i++) {
|
||||
sum += weightedStudents[i].weight; // 累加当前学生的权重
|
||||
if (random <= sum) { // 如果随机数小于或等于当前的累积权重
|
||||
selectedStudent = weightedStudents[i].student; // 选中该学生
|
||||
break; // 找到后立即退出循环
|
||||
}
|
||||
}
|
||||
|
||||
if (selectedStudent) {
|
||||
res.send({ student_name: selectedStudent.student_name,
|
||||
student_id: selectedStudent.student_id
|
||||
});
|
||||
} else {
|
||||
res.status(404).send({ message: '无学生数据' });
|
||||
}
|
||||
|
||||
connection.release();
|
||||
} catch (error) {
|
||||
res.status(500).send({ error: '随机选择学生失败' });
|
||||
}
|
||||
}
|
||||
|
||||
module.exports = { selectStudent };
|
||||
@ -0,0 +1,25 @@
|
||||
const pool = require('../db');
|
||||
|
||||
async function get_descend_Ranking(req, res) {
|
||||
try {
|
||||
const connection = await pool.getConnection();
|
||||
const [ranking] = await connection.query('SELECT student_name, student_id, score FROM students ORDER BY score DESC');
|
||||
connection.release();
|
||||
res.json(ranking);
|
||||
} catch (error) {
|
||||
res.status(500).send({ error: '无法获取排名' });
|
||||
}
|
||||
}
|
||||
|
||||
async function get_ascend_Ranking(req, res) {
|
||||
try {
|
||||
const connection = await pool.getConnection();
|
||||
const [ranking] = await connection.query('SELECT student_name, student_id, score FROM students ORDER BY score ASC');
|
||||
connection.release();
|
||||
res.json(ranking);
|
||||
} catch (error) {
|
||||
res.status(500).send({ error: '无法获取排名' });
|
||||
}
|
||||
}
|
||||
|
||||
module.exports = { get_ascend_Ranking, get_descend_Ranking };
|
||||
@ -0,0 +1,50 @@
|
||||
const express = require('express');
|
||||
const router = express.Router();
|
||||
const multer = require('multer');
|
||||
const randomSelect = require('./services/randomSelect');
|
||||
const ranking = require('./services/ranking');
|
||||
const classManager = require('./services/classManager');
|
||||
const scoreManager = require('./services/scoreManager');
|
||||
const TableManager = require('./services/delete-table');
|
||||
const pool = require('./db');
|
||||
// 文件上传配置
|
||||
const upload = multer({ dest: 'uploads/' });
|
||||
|
||||
// 路由 - 添加班级
|
||||
router.post('/upload', upload.single('file'), classManager.addClass);
|
||||
|
||||
// 路由 - 随机点名
|
||||
router.get('/random-call', randomSelect.selectStudent);
|
||||
|
||||
// 路由 - 获取排名
|
||||
router.get('/ascend_ranking', ranking.get_ascend_Ranking);
|
||||
router.get('/descend_ranking', ranking.get_descend_Ranking);
|
||||
|
||||
// 路由 - 更新分数
|
||||
router.post('/update-score', scoreManager.updateScore);
|
||||
|
||||
//路由 - 获取某个id的分数
|
||||
router.post('/get-score', scoreManager.getStudentScore);
|
||||
|
||||
//路由 - 删除班级
|
||||
router.post('/delete-table', TableManager.deleteTable);
|
||||
|
||||
|
||||
// 获取全部学生名单
|
||||
router.get('/get-students', async (req, res) => {
|
||||
let connection; // 声明连接变量
|
||||
try {
|
||||
connection = await pool.getConnection(); // 从连接池获取连接
|
||||
const [students] = await connection.query('SELECT student_name FROM students'); // 执行查询
|
||||
const studentNames = students.map(student => ({ student_name: student.student_name })); // 只保留 student_name 字段
|
||||
res.json(studentNames); // 返回只包含 student_name 的结果
|
||||
} catch (error) {
|
||||
console.error('Error fetching students:', error); // 记录错误信息
|
||||
res.status(500).send({ error: 'Failed to fetch students' }); // 返回500错误响应
|
||||
} finally {
|
||||
if (connection) connection.release(); // 确保连接被释放
|
||||
}
|
||||
});
|
||||
|
||||
|
||||
module.exports = router;
|
||||
@ -1,197 +1,249 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="zh-CN">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>积分显示</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
|
||||
background: linear-gradient(135deg, #a18cd1, #fbc2eb);
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
color: #333;
|
||||
}
|
||||
.container {
|
||||
width: 90%;
|
||||
max-width: 800px;
|
||||
background: rgba(255, 255, 255, 0.85);
|
||||
padding: 40px;
|
||||
border-radius: 20px;
|
||||
box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
|
||||
backdrop-filter: blur(8.5px);
|
||||
-webkit-backdrop-filter: blur(8.5px);
|
||||
border: 1px solid rgba(255, 255, 255, 0.18);
|
||||
text-align: center;
|
||||
}
|
||||
h1 {
|
||||
margin-bottom: 30px;
|
||||
font-size: 2em;
|
||||
color: #ff5722;
|
||||
}
|
||||
#sortButton {
|
||||
padding: 10px 20px;
|
||||
font-size: 1em;
|
||||
border: none;
|
||||
border-radius: 25px;
|
||||
background-color: #2196F3;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
transition: background-color 0.3s, transform 0.2s;
|
||||
margin-bottom: 20px;
|
||||
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
#sortButton:hover {
|
||||
background-color: #1e88e5;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
table {
|
||||
width: 100%;
|
||||
border-collapse: collapse;
|
||||
margin-top: 10px;
|
||||
}
|
||||
th, td {
|
||||
padding: 12px 15px;
|
||||
border-bottom: 1px solid #ddd;
|
||||
font-size: 1em;
|
||||
}
|
||||
th {
|
||||
background-color: #4CAF50;
|
||||
color: white;
|
||||
}
|
||||
tr:hover {
|
||||
background-color: #f1f1f1;
|
||||
}
|
||||
.button-group {
|
||||
margin-top: 30px;
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
gap: 10px;
|
||||
}
|
||||
.back-button, .clear-button {
|
||||
padding: 10px 20px;
|
||||
font-size: 1em;
|
||||
border: none;
|
||||
border-radius: 25px;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
transition: background-color 0.3s, transform 0.2s;
|
||||
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
.back-button {
|
||||
background-color: #2196F3;
|
||||
}
|
||||
.back-button:hover {
|
||||
background-color: #1e88e5;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
.clear-button {
|
||||
background-color: #f44336;
|
||||
}
|
||||
.clear-button:hover {
|
||||
background-color: #e53935;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
@media (max-width: 600px) {
|
||||
th, td {
|
||||
padding: 8px 10px;
|
||||
}
|
||||
#sortButton, .button-group button {
|
||||
width: 100%;
|
||||
margin: 10px 0;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<h1>积分显示</h1>
|
||||
<button id="sortButton">切换排序 (降序)</button>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th>姓名</th>
|
||||
<th>积分</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody id="studentList">
|
||||
<!-- 学生积分将在此处显示 -->
|
||||
</tbody>
|
||||
</table>
|
||||
<div class="button-group">
|
||||
<button class="back-button" onclick="window.location.href='index.html'">返回主页面</button>
|
||||
<button class="clear-button" id="clearButton">清除所有数据</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
const studentList = document.getElementById('studentList');
|
||||
const sortButton = document.getElementById('sortButton');
|
||||
const clearButton = document.getElementById('clearButton');
|
||||
let ascending = false; // 默认降序
|
||||
|
||||
// 预定义学生名单
|
||||
const predefinedStudents = [
|
||||
{ name: '张三', points: 0 },
|
||||
{ name: '李四', points: 0 },
|
||||
{ name: '王五', points: 0 },
|
||||
{ name: '赵六', points: 0 },
|
||||
];
|
||||
|
||||
// 获取所有学生，包括预定义名单
|
||||
function getAllStudents() {
|
||||
const students = predefinedStudents.map(student => {
|
||||
const storedPoints = localStorage.getItem(student.name);
|
||||
return {
|
||||
name: student.name,
|
||||
points: storedPoints !== null ? parseInt(storedPoints) : student.points
|
||||
};
|
||||
});
|
||||
return students;
|
||||
}
|
||||
|
||||
// 显示学生积分
|
||||
function displayStudents() {
|
||||
const students = getAllStudents();
|
||||
students.sort((a, b) => ascending ? a.points - b.points : b.points - a.points);
|
||||
studentList.innerHTML = '';
|
||||
students.forEach(student => {
|
||||
studentList.innerHTML += `
|
||||
<tr>
|
||||
<td>${student.name}</td>
|
||||
<td>${student.points}</td>
|
||||
</tr>
|
||||
`;
|
||||
});
|
||||
}
|
||||
|
||||
// 切换排序
|
||||
sortButton.addEventListener('click', () => {
|
||||
ascending = !ascending;
|
||||
sortButton.textContent = `切换排序 (${ascending ? '升序' : '降序'})`;
|
||||
displayStudents();
|
||||
});
|
||||
|
||||
// 清除所有数据
|
||||
clearButton.addEventListener('click', () => {
|
||||
const confirmation = confirm("确定要清除所有学生数据吗？此操作无法撤销！");
|
||||
if (confirmation) {
|
||||
localStorage.clear();
|
||||
alert("所有数据已清除！");
|
||||
displayStudents(); // 重新显示清空后的数据
|
||||
}
|
||||
});
|
||||
|
||||
// 初次加载时显示学生积分
|
||||
displayStudents();
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
<!DOCTYPE html>
|
||||
<html lang="zh-CN">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>积分显示</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
|
||||
background: linear-gradient(135deg, #a18cd1, #fbc2eb);
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
color: #333;
|
||||
}
|
||||
.container {
|
||||
width: 90%;
|
||||
max-width: 800px;
|
||||
background: rgba(255, 255, 255, 0.85);
|
||||
padding: 40px;
|
||||
border-radius: 20px;
|
||||
box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
|
||||
backdrop-filter: blur(8.5px);
|
||||
-webkit-backdrop-filter: blur(8.5px);
|
||||
border: 1px solid rgba(255, 255, 255, 0.18);
|
||||
text-align: center;
|
||||
}
|
||||
h1 {
|
||||
margin-bottom: 30px;
|
||||
font-size: 2em;
|
||||
color: #ff5722;
|
||||
}
|
||||
#sortButton {
|
||||
padding: 10px 20px;
|
||||
font-size: 1em;
|
||||
border: none;
|
||||
border-radius: 25px;
|
||||
background-color: #2196F3;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
transition: background-color 0.3s, transform 0.2s;
|
||||
margin-bottom: 20px;
|
||||
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
#sortButton:hover {
|
||||
background-color: #1e88e5;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
table {
|
||||
width: 100%;
|
||||
border-collapse: collapse;
|
||||
margin-top: 10px;
|
||||
}
|
||||
th, td {
|
||||
padding: 12px 15px;
|
||||
border-bottom: 1px solid #ddd;
|
||||
font-size: 1em;
|
||||
}
|
||||
th {
|
||||
background-color: #4CAF50;
|
||||
color: white;
|
||||
}
|
||||
tr:hover {
|
||||
background-color: #f1f1f1;
|
||||
}
|
||||
.button-group {
|
||||
margin-top: 30px;
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
gap: 10px;
|
||||
}
|
||||
.back-button, .clear-button {
|
||||
padding: 10px 20px;
|
||||
font-size: 1em;
|
||||
border: none;
|
||||
border-radius: 25px;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
transition: background-color 0.3s, transform 0.2s;
|
||||
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
.back-button {
|
||||
background-color: #2196F3;
|
||||
}
|
||||
.back-button:hover {
|
||||
background-color: #1e88e5;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
.clear-button {
|
||||
background-color: #f44336;
|
||||
}
|
||||
.clear-button:hover {
|
||||
background-color: #e53935;
|
||||
transform: scale(1.05);
|
||||
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
@media (max-width: 600px) {
|
||||
th, td {
|
||||
padding: 8px 10px;
|
||||
}
|
||||
#sortButton, .button-group button {
|
||||
width: 100%;
|
||||
margin: 10px 0;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<h1>积分显示</h1>
|
||||
<button id="sortButton">切换排序 (降序)</button>
|
||||
<table>
|
||||
<thead>
|
||||
<tr>
|
||||
<th>姓名</th>
|
||||
<th>学号</th>
|
||||
<th>积分</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody id="studentList">
|
||||
<!-- 学生积分将在此处显示 -->
|
||||
</tbody>
|
||||
</table>
|
||||
<div class="button-group">
|
||||
<button class="back-button" onclick="window.location.href='index.html'">返回主页面</button>
|
||||
<button class="clear-button" id="clearButton">清除所有数据</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
const studentList = document.getElementById('studentList');
|
||||
const sortButton = document.getElementById('sortButton');
|
||||
const clearButton = document.getElementById('clearButton');
|
||||
let ascend = false; // 默认降序
|
||||
|
||||
|
||||
//删除表
|
||||
async function deleteTable(tableName) {
|
||||
try {
|
||||
const response = await fetch('/api/delete-table', {
|
||||
method: 'POST',
|
||||
headers: {
|
||||
'Content-Type': 'application/json',
|
||||
},
|
||||
body: JSON.stringify({ tableName }),
|
||||
});
|
||||
|
||||
if (!response.ok) {
|
||||
throw new Error('删除表失败');
|
||||
}
|
||||
|
||||
const data = await response.json();
|
||||
alert(data.message); // 成功后显示消息
|
||||
} catch (error) {
|
||||
console.error('删除表操作失败:', error);
|
||||
alert('删除表失败');
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
// 获取按分数降序排列的学生排名
|
||||
async function fetchDescendRanking() {
|
||||
try {
|
||||
const response = await fetch('/api/descend_ranking');
|
||||
if (!response.ok) {
|
||||
alert('无法获取降序排名');
|
||||
return null;
|
||||
}
|
||||
|
||||
const ranking = await response.json(); // 获取并解析为JSON数组
|
||||
return ranking; // 返回排名数组
|
||||
} catch (error) {
|
||||
console.error('请求失败:', error);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
// 获取按分数升序排列的学生排名
|
||||
async function fetchAscendRanking() {
|
||||
try {
|
||||
const response = await fetch('/api/ascend_ranking');
|
||||
if (!response.ok) {
|
||||
alert('无法获取升序排名');
|
||||
return null;
|
||||
}
|
||||
|
||||
const ranking = await response.json(); // 获取并解析为JSON数组
|
||||
return ranking; // 返回排名数组
|
||||
} catch (error) {
|
||||
console.error('请求失败:', error);
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
async function displayStudents() {
|
||||
let ranking; // 声明 ranking 变量
|
||||
if (ascend) {
|
||||
ranking = await fetchAscendRanking(); // 获取升序排名
|
||||
} else {
|
||||
ranking = await fetchDescendRanking(); // 获取降序排名
|
||||
}
|
||||
|
||||
// 检查 ranking 是否为空
|
||||
if (!ranking) {
|
||||
alert('空 ranking');
|
||||
return; // 退出函数
|
||||
}
|
||||
|
||||
studentList.innerHTML = ''; // 清空表格内容
|
||||
// 只显示前五名学生
|
||||
ranking.slice(0, 5).forEach(student => {
|
||||
studentList.innerHTML += `
|
||||
<tr>
|
||||
<td>${student.student_name}</td> <!-- 学生姓名 -->
|
||||
<td>${student.student_id}</td> <!-- 学生ID -->
|
||||
<td>${student.score}</td> <!-- 学生分数 -->
|
||||
</tr>
|
||||
`;
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
|
||||
sortButton.addEventListener('click', () => {
|
||||
ascend = !ascend;
|
||||
sortButton.textContent = `切换排序 (${ascend ? '升序' : '降序'})`;
|
||||
displayStudents();
|
||||
});
|
||||
|
||||
clearButton.addEventListener('click', () => {
|
||||
const confirmation = confirm("确定要清除所有学生数据吗？此操作无法撤销！");
|
||||
if (confirmation) {
|
||||
deleteTable('students');
|
||||
alert("所有信息已清除！");
|
||||
displayStudents(); // 重新显示清空后的数据
|
||||
}
|
||||
});
|
||||
|
||||
displayStudents();
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@ -1,153 +1,153 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>随机点名</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Arial', sans-serif;
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
background: linear-gradient(135deg, #6e45e2, #88d3ce);
|
||||
color: white;
|
||||
}
|
||||
.container {
|
||||
text-align: center;
|
||||
background-color: rgba(255, 255, 255, 0.1);
|
||||
padding: 30px;
|
||||
border-radius: 15px;
|
||||
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
#nameDisplay {
|
||||
font-size: 2.5em;
|
||||
margin-bottom: 20px;
|
||||
padding: 20px;
|
||||
border-radius: 10px;
|
||||
background-color: rgba(255, 255, 255, 0.2);
|
||||
transition: all 0.3s ease;
|
||||
}
|
||||
#nameDisplay.active {
|
||||
transform: scale(1.1);
|
||||
color: #ffeb3b;
|
||||
}
|
||||
button {
|
||||
padding: 12px 30px;
|
||||
font-size: 1.1em;
|
||||
border: none;
|
||||
border-radius: 50px;
|
||||
background-color: #ff5722;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
|
||||
transition: background-color 0.3s ease, box-shadow 0.3s ease;
|
||||
}
|
||||
button:hover {
|
||||
background-color: #ff3d00;
|
||||
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
button:disabled {
|
||||
background-color: #999;
|
||||
cursor: not-allowed;
|
||||
}
|
||||
button + button {
|
||||
margin-left: 15px;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<div id="nameDisplay">准备开始提问</div>
|
||||
<button id="startButton">开始</button>
|
||||
<button id="stopButton" disabled>停止</button>
|
||||
<button class="back-button" onclick="window.location.href='index.html'">返回主页面</button>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
let names = [];
|
||||
let intervalId = null;
|
||||
|
||||
// 获取 DOM 元素
|
||||
const nameDisplay = document.querySelector('#nameDisplay');
|
||||
const startButton = document.querySelector('#startButton');
|
||||
const stopButton = document.querySelector('#stopButton');
|
||||
|
||||
// 页面加载时获取学生名单
|
||||
window.addEventListener('DOMContentLoaded', fetchStudents);
|
||||
|
||||
// 获取学生名单
|
||||
async function fetchStudents() {
|
||||
try {
|
||||
const response = await fetch('/api/get-students');
|
||||
if (!response.ok) {
|
||||
throw new Error('Network response was not ok');
|
||||
}
|
||||
const data = await response.json();
|
||||
names = data.map(student => student.student_name);
|
||||
} catch (error) {
|
||||
console.error('Error fetching student list:', error);
|
||||
}
|
||||
}
|
||||
|
||||
// 动态更新显示效果
|
||||
const updateNameDisplay = (name) => {
|
||||
nameDisplay.textContent = `点到: ${name}`;
|
||||
nameDisplay.classList.add('active');
|
||||
setTimeout(() => {
|
||||
nameDisplay.classList.remove('active');
|
||||
}, 300);
|
||||
};
|
||||
|
||||
// 开始滚动显示
|
||||
startButton.addEventListener('click', () => {
|
||||
startButton.disabled = true;
|
||||
stopButton.disabled = false;
|
||||
|
||||
intervalId = setInterval(() => {
|
||||
// 从 names 数组中随机选择一个名字进行滚动显示
|
||||
const randomIndex = Math.floor(Math.random() * names.length);
|
||||
const selectedName = names[randomIndex];
|
||||
|
||||
// 更新显示选中的名字
|
||||
updateNameDisplay(selectedName);
|
||||
}, 100); // 每100毫秒滚动显示一次
|
||||
});
|
||||
|
||||
// 停止滚动并通过后端决定最终选择的学生
|
||||
stopButton.addEventListener('click', () => {
|
||||
clearInterval(intervalId);
|
||||
startButton.disabled = false;
|
||||
stopButton.disabled = true;
|
||||
|
||||
// 调用后端接口获取最终选中的学生
|
||||
fetch('/api/random-call')
|
||||
.then(response => {
|
||||
if (!response.ok) {
|
||||
throw new Error('Network response was not ok');
|
||||
}
|
||||
return response.json();
|
||||
})
|
||||
.then(data => {
|
||||
// 从后端返回的数据中获取学生名字
|
||||
if (data.student && data.student.name) {
|
||||
const selectedName = data.student.name;
|
||||
// 更新显示选中的学生
|
||||
updateNameDisplay(selectedName);
|
||||
// 跳转到新页面并传递被选中的名字
|
||||
window.location.href = `choice.html?name=${encodeURIComponent(selectedName)}`;
|
||||
} else {
|
||||
console.error('未返回有效学生数据');
|
||||
}
|
||||
})
|
||||
.catch(error => {
|
||||
console.error('请求失败:', error);
|
||||
});
|
||||
});
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>随机点名</title>
|
||||
<style>
|
||||
body {
|
||||
font-family: 'Arial', sans-serif;
|
||||
height: 100vh;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
background: linear-gradient(135deg, #6e45e2, #88d3ce);
|
||||
color: white;
|
||||
}
|
||||
.container {
|
||||
text-align: center;
|
||||
background-color: rgba(255, 255, 255, 0.1);
|
||||
padding: 30px;
|
||||
border-radius: 15px;
|
||||
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
|
||||
}
|
||||
#nameDisplay {
|
||||
font-size: 2.5em;
|
||||
margin-bottom: 20px;
|
||||
padding: 20px;
|
||||
border-radius: 10px;
|
||||
background-color: rgba(255, 255, 255, 0.2);
|
||||
transition: all 0.3s ease;
|
||||
}
|
||||
#nameDisplay.active {
|
||||
transform: scale(1.1);
|
||||
color: #ffeb3b;
|
||||
}
|
||||
button {
|
||||
padding: 12px 30px;
|
||||
font-size: 1.1em;
|
||||
border: none;
|
||||
border-radius: 50px;
|
||||
background-color: #ff5722;
|
||||
color: white;
|
||||
cursor: pointer;
|
||||
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
|
||||
transition: background-color 0.3s ease, box-shadow 0.3s ease;
|
||||
}
|
||||
button:hover {
|
||||
background-color: #ff3d00;
|
||||
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
|
||||
}
|
||||
button:disabled {
|
||||
background-color: #999;
|
||||
cursor: not-allowed;
|
||||
}
|
||||
button + button {
|
||||
margin-left: 15px;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="container">
|
||||
<div id="nameDisplay">准备开始提问</div>
|
||||
<button id="startButton">开始</button>
|
||||
<button id="stopButton" disabled>停止</button>
|
||||
<button class="back-button" onclick="window.location.href='index.html'">返回主页面</button>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
let names = [];
|
||||
let intervalId = null;
|
||||
|
||||
// 获取 DOM 元素
|
||||
const nameDisplay = document.querySelector('#nameDisplay');
|
||||
const startButton = document.querySelector('#startButton');
|
||||
const stopButton = document.querySelector('#stopButton');
|
||||
|
||||
// 页面加载时获取学生名单
|
||||
window.addEventListener('DOMContentLoaded', fetchStudents);
|
||||
|
||||
// 获取学生名单
|
||||
async function fetchStudents() {
|
||||
try {
|
||||
const response = await fetch('/api/get-students');
|
||||
if (!response.ok) {
|
||||
throw new Error('Network response was not ok');
|
||||
}
|
||||
const data = await response.json();
|
||||
names = data.map(student => student.student_name);
|
||||
} catch (error) {
|
||||
console.error('Error fetching student list:', error);
|
||||
}
|
||||
}
|
||||
|
||||
// 动态更新显示效果
|
||||
const updateNameDisplay = (name) => {
|
||||
nameDisplay.textContent = `点到: ${name}`;
|
||||
nameDisplay.classList.add('active');
|
||||
setTimeout(() => {
|
||||
nameDisplay.classList.remove('active');
|
||||
}, 300);
|
||||
};
|
||||
|
||||
// 开始滚动显示
|
||||
startButton.addEventListener('click', () => {
|
||||
startButton.disabled = true;
|
||||
stopButton.disabled = false;
|
||||
|
||||
intervalId = setInterval(() => {
|
||||
// 从 names 数组中随机选择一个名字进行滚动显示
|
||||
const randomIndex = Math.floor(Math.random() * names.length);
|
||||
const selectedName = names[randomIndex];
|
||||
|
||||
// 更新显示选中的名字
|
||||
updateNameDisplay(selectedName);
|
||||
}, 100); // 每100毫秒滚动显示一次
|
||||
});
|
||||
|
||||
// 停止滚动并通过后端决定最终选择的学生
|
||||
stopButton.addEventListener('click', async () => {
|
||||
clearInterval(intervalId);
|
||||
startButton.disabled = false;
|
||||
stopButton.disabled = true;
|
||||
|
||||
try {
|
||||
const response = await fetch('/api/random-call');
|
||||
|
||||
if (!response.ok) {
|
||||
throw new Error('Network response was not ok');
|
||||
}
|
||||
|
||||
const data = await response.json();
|
||||
// 从后端返回的数据中获取学生名字
|
||||
const selectedName = data.student_name; // student_name 属性
|
||||
|
||||
if (selectedName) {
|
||||
// 更新显示选中的学生
|
||||
updateNameDisplay(selectedName);
|
||||
// 跳转到新页面并传递被选中的名字
|
||||
window.location.href = `choice.html?student_name=${encodeURIComponent(data.student_name)}&student_id=${encodeURIComponent(data.student_id)}`;
|
||||
} else {
|
||||
console.error('未返回有效学生数据');
|
||||
}
|
||||
} catch (error) {
|
||||
console.error('请求失败:', error);
|
||||
}
|
||||
});
|
||||
|
||||
</script>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@ -0,0 +1,26 @@
|
||||
const express = require('express');
|
||||
const path = require('path');
|
||||
const bodyParser = require('body-parser');
|
||||
const router = require('./router');
|
||||
const app = express();
|
||||
|
||||
// 中间件
|
||||
app.use(bodyParser.json());
|
||||
app.use(bodyParser.urlencoded({ extended: true }));
|
||||
|
||||
// API 路由
|
||||
app.use('/api', router);
|
||||
|
||||
// 静态文件
|
||||
app.use(express.static(path.join(__dirname, 'public')));
|
||||
|
||||
// 处理 SPA 路由
|
||||
app.get('*', (req, res) => {
|
||||
res.sendFile(path.join(__dirname, 'public', 'index.html'));
|
||||
});
|
||||
|
||||
// 启动服务器
|
||||
const PORT = process.env.PORT || 3000;
|
||||
app.listen(PORT, () => {
|
||||
console.log(`Server running on port ${PORT}`);
|
||||
});
|
||||
Loading…
Reference in new issue