websocket本服务器构建,目录结构如下:
package.json
{
"name": "wsServer",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"dev": "nodemon index.js"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"ws": "^8.3.0"
}
}
index.js
var WS = require('ws');
// url ws://127.0.0.1:8080
// 创建了一个客户端的serveret,然后让这个客户端去连接服务器的serveret
(function (ws) {
var server = new ws.Server({ port: 8080 });
server.on('open', handleOpen);
server.on('error', handleError);
server.on('close', handleClose);
server.on('connection', handleConnection);
function handleOpen(e) {
console.log('WebSocket open', e);
}
function handleClose(e) {
console.log('WebSocket close', e);
}
function handleError(e) {
console.log('WebSocket error', e);
}
function handleConnection(WS) {
console.log('websocket connection');
WS.on('message', handleMessage);
}
function handleMessage(msg) {
console.log('服务端接收数据', msg);
//数据分发给客户端
server.clients.forEach((c) => {
c.send(msg);
});
}
})(WS);
在根目录安装一下依赖
yarn install
然后启动服务
yarn dev```