296 lines
9.5 KiB
HTML
296 lines
9.5 KiB
HTML
<!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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<meta http-equiv="X-Content-Type-Options" content="nosniff">
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<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
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<meta http-equiv="Pragma" content="no-cache">
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<meta http-equiv="Expires" content="0">
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<title>实时K线图</title>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.0.1/socket.io.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/echarts@5.4.3/dist/echarts.min.js"></script>
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<style>
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#kline-chart {
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width: 100%;
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height: 800px;
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margin: 20px auto;
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}
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.symbol-selector {
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margin: 20px;
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text-align: center;
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}
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button {
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margin: 10px;
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padding: 10px;
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cursor: pointer;
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}
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.active-symbol {
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background-color: #e0e0e0;
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}
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body {
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margin: 0;
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padding: 0;
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background-color: #f5f5f5;
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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="symbol-selector" id="symbol-buttons">
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<!-- 动态生成按钮 -->
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</div>
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<div id="kline-chart"></div>
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<script>
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let currentSymbol = null;
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const socket = io();
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const symbolButtons = document.getElementById('symbol-buttons');
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let chart = null;
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// 初始化图表
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function initChart() {
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if (!chart) {
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chart = echarts.init(document.getElementById('kline-chart'));
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}
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}
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// 初始化数据
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fetch('/api/data')
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.then(response => response.json())
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.then(data => {
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updateSymbolButtons(data);
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if (Object.keys(data).length > 0) {
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currentSymbol = Object.keys(data)[0];
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updateChart(data[currentSymbol]);
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}
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})
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.catch(error => {
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console.error('Error fetching data:', error);
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});
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// WebSocket事件处理
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socket.on('connect', () => {
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console.log('Connected to server');
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});
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socket.on('data_update', (data) => {
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updateSymbolButtons(data);
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if (currentSymbol && data[currentSymbol]) {
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updateChart(data[currentSymbol]);
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}
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});
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function updateSymbolButtons(data) {
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symbolButtons.innerHTML = '';
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Object.keys(data).forEach(symbol => {
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const button = document.createElement('button');
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button.textContent = symbol;
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button.onclick = () => {
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currentSymbol = symbol;
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updateChart(data[symbol]);
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};
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if (symbol === currentSymbol) {
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button.classList.add('active-symbol');
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}
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symbolButtons.appendChild(button);
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});
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}
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function updateChart(data) {
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initChart();
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// 准备数据
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const dates = data.map(item => item.datetime);
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const klineData = data.map(item => [
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parseFloat(item.open),
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parseFloat(item.close),
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parseFloat(item.low),
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parseFloat(item.high)
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]);
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const volumes = data.map(item => parseFloat(item.volume));
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const ultimateValues = data.map(item => parseFloat(item.终极平滑值));
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// 处理POC数据，将缺值替换为前一个有效值
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let pocValues = data.map(item => item.POC);
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let lastValidPoc = null;
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pocValues = pocValues.map(value => {
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if (value === '缺值') {
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return lastValidPoc;
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} else {
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lastValidPoc = parseFloat(value);
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return lastValidPoc;
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}
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});
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// 计算240日均线
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const closes = data.map(item => parseFloat(item.close));
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const ma240 = calculateMA(closes, 240);
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// 配置图表选项
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const option = {
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title: {
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text: `${currentSymbol} K线图`,
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left: 'center'
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},
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tooltip: {
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trigger: 'axis',
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axisPointer: {
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type: 'cross'
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}
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},
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legend: {
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data: ['K线', '240日均线', '终极平滑值', 'POC'],
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top: 30
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},
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grid: [
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{
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left: '10%',
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right: '8%',
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height: '60%'
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},
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{
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left: '10%',
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right: '8%',
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top: '75%',
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height: '20%'
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}
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],
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xAxis: [
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{
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type: 'category',
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data: dates,
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scale: true,
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boundaryGap: false,
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axisLine: {onZero: false},
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splitLine: {show: false},
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splitNumber: 20,
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gridIndex: 0
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},
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{
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type: 'category',
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gridIndex: 1,
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data: dates,
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axisLabel: {show: false},
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splitLine: {show: false},
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axisLine: {show: false},
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splitNumber: 20
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}
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],
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yAxis: [
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{
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scale: true,
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splitArea: {
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show: true
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},
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gridIndex: 0
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},
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{
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scale: true,
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gridIndex: 1,
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splitNumber: 2,
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axisLabel: {show: false},
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axisLine: {show: false},
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splitLine: {show: false}
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}
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],
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dataZoom: [
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{
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type: 'inside',
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xAxisIndex: [0, 1],
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start: 50,
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end: 100
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},
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{
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show: true,
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xAxisIndex: [0, 1],
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type: 'slider',
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bottom: '5%',
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start: 50,
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end: 100
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}
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],
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series: [
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{
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name: 'K线',
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type: 'candlestick',
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data: klineData,
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itemStyle: {
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color: '#ef232a',
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color0: '#14b143',
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borderColor: '#ef232a',
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borderColor0: '#14b143'
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}
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},
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{
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name: '240日均线',
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type: 'line',
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data: ma240,
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smooth: true,
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lineStyle: {
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opacity: 0.5
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}
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},
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{
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name: '终极平滑值',
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type: 'line',
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data: ultimateValues,
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smooth: true,
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lineStyle: {
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opacity: 0.5
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}
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},
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{
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name: 'POC',
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type: 'line',
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data: pocValues,
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smooth: true,
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lineStyle: {
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color: '#FFD700',
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width: 2,
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opacity: 0.8
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},
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symbol: 'circle',
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symbolSize: 6
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},
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{
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name: '成交量',
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type: 'bar',
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xAxisIndex: 1,
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yAxisIndex: 1,
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data: volumes
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}
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]
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};
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// 使用配置项显示图表
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chart.setOption(option);
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}
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function calculateMA(data, dayCount) {
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const result = [];
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for (let i = 0, len = data.length; i < len; i++) {
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if (i < dayCount - 1) {
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result.push('-');
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continue;
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}
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let sum = 0;
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for (let j = 0; j < dayCount; j++) {
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sum += data[i - j];
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}
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result.push(+(sum / dayCount).toFixed(2));
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}
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return result;
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}
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// 响应窗口大小变化
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window.addEventListener('resize', function() {
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if (chart) {
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chart.resize();
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}
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});
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// 初始化图表
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initChart();
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</script>
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</body>
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</html> |