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206 lines
7.1 KiB
206 lines
7.1 KiB
<!DOCTYPE html>
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<html lang="zh-CN">
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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>教育知识问答</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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max-width: 800px;
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margin: 0 auto;
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padding: 20px;
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background-color: #f5f5f5;
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}
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.container {
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background: white;
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padding: 30px;
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border-radius: 8px;
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box-shadow: 0 2px 10px rgba(0,0,0,0.1);
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}
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h1 {
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color: #333;
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text-align: center;
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margin-bottom: 30px;
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}
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.data-area {
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border: 1px solid #ddd;
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border-radius: 5px;
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padding: 15px;
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min-height: 300px;
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max-height: 400px;
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overflow-y: auto;
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background-color: #f8f9fa;
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font-family: 'Courier New', monospace;
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font-size: 14px;
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line-height: 1.6;
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white-space: pre-line;
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word-wrap: break-word;
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overflow-wrap: break-word;
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margin-bottom: 20px;
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}
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.input-area {
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display: flex;
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gap: 10px;
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}
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#questionInput {
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flex: 1;
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padding: 10px;
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border: 1px solid #ddd;
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border-radius: 5px;
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font-size: 16px;
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}
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#submitBtn {
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background-color: #007bff;
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color: white;
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border: none;
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padding: 10px 20px;
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font-size: 16px;
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border-radius: 5px;
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cursor: pointer;
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transition: background-color 0.3s;
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}
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#submitBtn:hover {
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background-color: #0056b3;
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}
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.status {
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text-align: center;
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margin-bottom: 20px;
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font-weight: bold;
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}
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.status.connecting {
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color: #ffc107;
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}
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.status.connected {
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color: #28a745;
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}
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.status.error {
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color: #dc3545;
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}
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.status.completed {
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color: #17a2b8;
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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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<h1>教育知识问答</h1>
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<div id="status" class="status">准备就绪</div>
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<div class="data-area" id="dataArea">等待问题...</div>
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<div class="input-area">
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<input type="text" id="questionInput" placeholder="请输入您的问题，例如：小学数学的学习方法">
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<button id="submitBtn" onclick="submitQuestion()">提问</button>
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</div>
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</div>
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<script>
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let eventSource = null;
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let textBuffer = '';
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function submitQuestion() {
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const question = document.getElementById('questionInput').value.trim();
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if (!question) {
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alert('请输入问题！');
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return;
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}
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const statusDiv = document.getElementById('status');
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const dataArea = document.getElementById('dataArea');
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const submitBtn = document.getElementById('submitBtn');
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// 清空之前的数据
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dataArea.textContent = '';
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textBuffer = '';
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// 禁用按钮
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submitBtn.disabled = true;
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submitBtn.textContent = '处理中...';
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// 更新状态
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statusDiv.textContent = '正在连接...';
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statusDiv.className = 'status connecting';
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// 使用fetch发送POST请求并处理SSE流
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fetch('/api/rag', {
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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({ query: question })
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})
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.then(response => {
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if (!response.ok) {
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throw new Error(`HTTP error! status: ${response.status}`);
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}
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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statusDiv.textContent = '连接成功，等待回答...';
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statusDiv.className = 'status connected';
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function readStream() {
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reader.read().then(({ done, value }) => {
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if (done) {
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statusDiv.textContent = '回答完成';
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statusDiv.className = 'status completed';
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submitBtn.disabled = false;
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submitBtn.textContent = '提问';
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return;
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}
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const chunk = decoder.decode(value, { stream: true });
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// SSE数据通常以 'data: ' 开头，并以 '\n\n' 结束
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const lines = chunk.split('\n').filter(line => line.trim() !== '');
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for (const line of lines) {
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if (line.startsWith('data: ')) {
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let data = line.substring(6);
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if (data.trim() === '[DONE]') {
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statusDiv.textContent = '回答完成';
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statusDiv.className = 'status completed';
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submitBtn.disabled = false;
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submitBtn.textContent = '提问';
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reader.cancel(); // 停止读取流
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return;
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}
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textBuffer += data;
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dataArea.textContent = textBuffer;
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dataArea.scrollTop = dataArea.scrollHeight;
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}
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}
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readStream(); // 继续读取下一块
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}).catch(error => {
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console.error('SSE连接错误:', error);
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statusDiv.textContent = `连接错误或已断开: ${error.message}`;
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statusDiv.className = 'status error';
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submitBtn.disabled = false;
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submitBtn.textContent = '提问';
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});
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}
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readStream();
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})
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.catch(error => {
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console.error('Fetch错误:', error);
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statusDiv.textContent = `请求发送失败: ${error.message}`;
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statusDiv.className = 'status error';
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submitBtn.disabled = false;
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submitBtn.textContent = '提问';
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});
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}
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</script>
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</body>
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</html> |