1、简单的Node服务端
const WebSocket = require('ws');// 创建 WebSocket 服务器
const wss = new WebSocket.Server({ port: 8888 });const getHeader = (protocol) => {const protocolArr = protocol.split(',')const headers = {};for (let i = 0; i < protocolArr.length; i += 2) {const key = protocolArr[i].trim();const value = protocolArr[i + 1].trim();headers[key] = value;}return headers;
}
let timer = null;
let num = 0;
let UID = '';// 监听连接事件
wss.on('connection', (ws, req) => {const userName = req.url.replace('/', '');UID = userName;console.log('WebSocket connection established for URL:', userName);// 在 'upgrade' 事件处理程序中获取请求头信息const protocol = req.headers['sec-websocket-protocol'];console.log('Sec-WebSocket-Protocol:', getHeader(protocol)['X-Access-Token']);// 连接建立成功时触发console.log('Client connected');if(!timer) {const obj = [{name: 'SC001',value: 123},{name: 'SC001',value: 123}]timer = setInterval(() => {ws.send(`${UID}心跳信息消息: ${num}--${JSON.stringify(obj)}`);num++}, 3000);}// 监听消息接收事件ws.on('message', (message) => {console.log(`Received message: ${message}`);// 向客户端发送消息ws.send(`服务端返回消息: ${message}`);});// 监听连接关闭事件ws.on('close', () => {// 连接关闭时触发console.log('Client disconnected');timer = null;});
});
2、大屏客户端
<!DOCTYPE html>
<html lang="zh"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>大屏测试</title>
</head><body><style>body {position: relative;margin: 0;padding: 0;color: #ffffff;font-size: 36px;font-weight: bold;background-color: #20f;background-color: #3084e7;background: url(https://tinypng.com/backend/opt/output/3ret9c4gdpxnargyh99c1rgj1ne52res/bg.png) no-repeat;background-size: auto;}.item {box-shadow: inset 0px 0px 6px 2px #9df6fa;border-radius: 4px;width: calc(100% - 24px);height: 100%;display: flex;justify-content: center;align-items: center;padding: 12px;}.bigscreen {margin: 12px;display: flex;height: 100%;}.mg12 {margin: 12px 0;}.header {margin: 0 12px;text-align: center;line-height: 48px;margin-bottom: 12px;font-size: 36px;background: linear-gradient(to bottom, #56f4fe, #3084e7);-webkit-background-clip: text;color: transparent;}.first {display: flex;justify-content: space-around;align-items: center;font-size: 22px;}.i {width: 100%;display: flex;flex-direction: column;text-align: center;}.val {margin-top: 12px;}</style><div id="app" style="position: absolute;"><div class="header">大屏标题</div><div class="bigscreen"><div style="display: flex;flex-direction: column; height: calc(100% - 72px); width: 65%; margin-right: 12px;"><div id="first" class="item first" style="height: 15%;"><div class="i"><div>API总数</div><div class="val">19,612</div></div><div class="i"><div>调用数</div><div class="val">1,222</div></div><div class="i" id="warn" style="color: red;"><div>告警数</div><div class="val">68</div></div></div><div id="chart2" class="item mg12" style="height: 30%;">222</div><div id="chart3" class="item" style="flex: 1;">333</div></div><div style="display: flex;flex-direction: column; height: calc(100% - 72px); flex: 1;"><div id="chart4" class="item">111</div><div id="chart5" class="item mg12">222</div><div id="chart6" class="item">333</div></div></div></div><script src="https://cdn.jsdelivr.net/npm/echarts@5.2.2/dist/echarts.min.js"></script><script type="module">import autofit from 'https://cdn.jsdelivr.net/npm/autofit.js';autofit.init({dh: 1080,dw: 1920,el: '#app',resize: true},false);// 配置图表选项和数据const obj = ['bar', 'line']const getType = () => {// 生成随机索引var randomIndex = Math.floor(Math.random() * obj.length);// 获取随机元素var type = obj[randomIndex];return type;}var option = () => {const type = getType()return {color: ['#80FFA5', '#00DDFF', '#37A2FF', '#FF0087', '#FFBF00'],title: {text: 'Gradient Stacked Area Chart'},tooltip: {trigger: 'axis',axisPointer: {type: 'cross',label: {backgroundColor: '#6a7985'}}},legend: {data: ['Line 1', 'Line 2', 'Line 3', 'Line 4', 'Line 5']},toolbox: {feature: {saveAsImage: {}}},grid: {left: '3%',right: '4%',bottom: '3%',containLabel: true},xAxis: [{type: 'category',boundaryGap: type === 'bar',data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']}],yAxis: [{type: 'value'}],series: [{name: 'Line 1',type: type,stack: 'Total',smooth: true,lineStyle: {width: 0},showSymbol: false,areaStyle: {opacity: 0.8,color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{offset: 0,color: 'rgb(128, 255, 165)'},{offset: 1,color: 'rgb(1, 191, 236)'}])},emphasis: {focus: 'series'},data: [Math.random() * 1000, Math.random() * 100, 101, 264, 90, 340, 250]},{name: 'Line 2',type: type,stack: 'Total',smooth: true,lineStyle: {width: 0},showSymbol: false,areaStyle: {opacity: 0.8,color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{offset: 0,color: 'rgb(0, 221, 255)'},{offset: 1,color: 'rgb(77, 119, 255)'}])},emphasis: {focus: 'series'},data: [Math.random() * 1000, Math.random() * 100, 111, 234, 220, 340, 310]},{name: 'Line 3',type: type,stack: 'Total',smooth: true,lineStyle: {width: 0},showSymbol: false,areaStyle: {opacity: 0.8,color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{offset: 0,color: 'rgb(55, 162, 255)'},{offset: 1,color: 'rgb(116, 21, 219)'}])},emphasis: {focus: 'series'},data: [Math.random() * 1000, Math.random() * 100, 201, 334, 190, 130, 220]},]}};// 初始化ECharts实例var myChart2 = echarts.init(document.getElementById('chart2'), 'dark');var myChart3 = echarts.init(document.getElementById('chart3'), 'dark');var myChart4 = echarts.init(document.getElementById('chart4'), 'dark');var myChart5 = echarts.init(document.getElementById('chart5'), 'dark');var myChart6 = echarts.init(document.getElementById('chart6'), 'dark');// 使用配置项设置图表myChart2.setOption(option());myChart3.setOption(option());myChart4.setOption(option());myChart5.setOption(option());myChart6.setOption(option());// 自适应窗口大小变化window.addEventListener('resize', function () {myChart2.resize();myChart3.resize();myChart4.resize();myChart5.resize();myChart6.resize();});const timer = setInterval(() => {myChart2.setOption(option());myChart3.setOption(option());myChart4.setOption(option());myChart5.setOption(option());myChart6.setOption(option());}, 3000);</script><script>setTimeout(() => {// 创建一个 Canvas 元素var canvas = document.createElement('canvas');var ctx = canvas.getContext('2d');// 设置 Canvas 的尺寸与容器元素相同var container = document.getElementById('first');canvas.width = container.offsetWidth * 0.6;canvas.height = container.offsetHeight;var date = new Date();var month = date.getMonth() + 1;var time = `${date.getFullYear()}-${month > 9 ? month : '0'+month}-${date.getDate()} ${date.getHours()}:${date.getMinutes()}:${date.getSeconds()}`// 旋转绘图上下文45度（以弧度为单位）ctx.rotate(Math.PI / 16);// 绘制水印文本ctx.font = '36px Arial';ctx.fillStyle = '#ffffff1f'; // 水印文本颜色和透明度ctx.textAlign = 'center';ctx.textBaseline = 'middle';ctx.fillText(time, canvas.width / 4, canvas.height / 4);// 将 Canvas 转换为背景图像var watermarkUrl = canvas.toDataURL();// 设置容器元素的背景样式为水印图像container.style.backgroundImage = 'url(' + watermarkUrl + ')';}, 200)</script><script>let socket, timers, connectState;let num = 1;const TIME = 10// 创建 WebSocket 连接函数function createWebSocket(state) {if(state) {num = 1;document.getElementById("output").innerHTML = '';console.clear()}const room = new Date().getTime();const token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE2ODg1MzgzNDUsInVzZXJuYW1lIjoiYWRtaW4ifQ.Yac09LCyIAwjUofsm2cvGKxPmpZ5fTXG9ZKpFYdX2eQ';socket = new WebSocket("ws:localhost:8888/tengyu?id=001", ['X-Access-Token', token, 'Authorization', "token"]);// socket = new WebSocket(`ws://10.72.30.229:8080/dsss/websocket/largeScreen/room-${room}`);// 监听连接打开事件socket.onopen = function(event) {connectState = true;};// 监听消息接收事件socket.onmessage = function(event) {console.log(event.data);};// 监听连接关闭事件socket.onclose = function(event) {connectState = false;// 断线后尝试重连timers = setTimeout(function() {if (num > TIME) {clearTimeout(timers);console.log(`%cWS连接失败，如需重连请点击【连接WebSocket】`, 'background: blue; color: #fff; padding: 8px 12px; border-radius: 3px');return;}console.log(`%cWS第${num}次断线重连中...`, 'background: red; color: #fff; padding: 8px 12px; border-radius: 3px');createWebSocket();num++}, 5000);};}function fangdou(callback, time = 500) {let timers = null;return function() {if(timers) {clearTimeout(timers);}timers = setTimeout(() => {callback.apply(this, arguments);timers = null;}, time);};}// 发送消息到 WebSocket 服务器function sendMessage() {if(!connectState) {console.log(`WS服务器未连接~`);return;} const message = prompt("Enter your message:");console.log(`发送到服务器： ${messages}`);socket.send(messages);}// 初始化 WebSocket 连接createWebSocket();</script></body></html>
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