根据您的代码和注释，这是一个如何一起工作的超简单示例。
首先， http-server.js
-一个典型的快递应用程序，除了我们不使用以下命令启动服务器
app.listen()：
'use strict';let fs = require('fs');let express = require('express');let app = express();let bodyParser = require('body-parser');app.use(bodyParser.json());// Let's create the regular HTTP request and responseapp.get('/', function(req, res) { console.log('Get index'); fs.createReadStream('./index.html') .pipe(res);});app.post('/', function(req, res) { let message = req.body.message; console.log('Regular POST message: ', message); return res.json({ answer: 42 });});module.exports = app;现在，在该 ws-server.js
示例中，我们从一个native节点创建WSS服务器
http.createServer()。现在，请注意，这是我们导入应用程序的地方，并为该本地http.createServer提供了要使用的应用程序实例。
使用以下命令启动应用程序
PORT=8080 node ws-server.js：
'use strict';let WSServer = require('ws').Server;let server = require('http').createServer();let app = require('./http-server');// Create web socket server on top of a regular http serverlet wss = new WSServer({ server: server});// Also mount the app hereserver.on('request', app);wss.on('connection', function connection(ws) { ws.on('message', function incoming(message) { console.log(`received: ${message}`); ws.send(JSON.stringify({ answer: 42 })); });});server.listen(process.env.PORT, function() { console.log(`http/ws server listening on ${process.env.PORT}`);});最后，此示例 index.html
将通过创建POST和套接字“请求”并显示响应来工作：
<html><head> <title>WS example</title></head><body> <h2>Socket message response: </h2> <pre id="response"></pre> <hr/> <h2>POST message response: </h2> <pre id="post-response"></pre> <script> // Extremely simplified here, no error handling or anythingdocument.body.onload = function() { 'use strict'; // First the socket requesta function socketExample() { console.log('Creating socket'); let socket = new WebSocket('ws://localhost:8080/'); socket.onopen = function() { console.log('Socket open.'); socket.send(JSON.stringify({message: 'What is the meaning of life, the universe and everything?'})); console.log('Message sent.') }; socket.onmessage = function(message) { console.log('Socket server message', message); let data = JSON.parse(message.data); document.getElementById('response').innerHTML = JSON.stringify(data, null, 2); }; } // Now the simple POST demo function postExample() { console.log('Creating regular POST message'); fetch('/', { method: 'post', headers: { "Content-type": "application/json" }, body: JSON.stringify({message: 'What is the meaning of post-life, the universe and everything?'}) }) .then(response => response.json()) .then(function (data) { console.log('POST response:', data); document.getElementById('post-response').innerHTML = JSON.stringify(data, null, 2); }) .catch(function (error) { console.log('Request failed', error); }); } // Call them both; socketExample(); postExample();} </script></body></html>请注意，您将需要一种新的浏览器，该浏览器同时具有此客户端部分的WebSocket和fetch API，但是无论如何它都无关紧要，只是给您了要点。
