一、创建websocket.js文件
步骤：
1、创建websocket.js文件，复制如下代码；
2、安装nodejs-websocket依赖；
3、该文件夹下命令行执行 node websocket.js;
var ws = require('nodejs-websocket'); console.log('开始建立连接...') ws.createServer(function (conn) { conn.on('text', function (str) { console.log('浏览器给服务端收到的信息为:' + str) conn.sendText('服务器下发的内容=>'+str) }) conn.on('close', function (code, reason) { console.log('关闭连接', code, reason) }); conn.on('error', function (code, reason) { console.log('异常关闭', code, reason) }); }).listen(8001) console.log('WebSocket建立完毕');
二、创建websocket.html页面
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title>WebSocket</title>
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<style>
body{
96%;
margin-left: 2%;
margin-top: 20px;
}
</style>
</head>
<body>
<div class="btn-group box" role="group" aria-label="...">
<button type="button" class="btn btn-default">Oppo</button>
<button type="button" class="btn btn-default">Vivo</button>
<button type="button" class="btn btn-default">Apple</button>
</div>
<div class="page-header">
<h5 class="info">服务器返回信息列表:</br></br></h5>
</div>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
if (window.WebSocket) {
var ws = new WebSocket('ws://127.0.0.1:8001');
ws.onopen = function () {
console.log('连接服务器成功!');
ws.send('startting...');
}
ws.onclose = function () {
console.log('服务器关闭');
}
ws.onerror = function () {
console.log("连接出错");
}
ws.onmessage = function (e) {
document.querySelector(".box").onclick = function (e) {
ws.send('当前点击框的内容为:<font style="color:red;" >' + e.target.innerHTML+'</font>');
}
$('.info').append(e.data + '</br></br>');
}
}
</script>
</body>
</html>
当终端看到如图所示时，即可测试demo了
打开wesocket.html页面点击按钮测试双向通信
如上图即实验成果，就是这么简单！