centos下nodejs和ws安装

1.安装nodejs

yum install -y nodejs

2.安装npm

yum install -y npm

3.安装ws

npm install ws

4.设置环境路径

export NODE_PATH=/usr/local/node_modules

5.示例server.js

console.log("Server started");
var Msg = '';
var WebSocketServer = require('ws').Server
    , wss = new WebSocketServer({port: 8010});
    wss.on('connection', function(ws) {
        ws.on('message', function(message) {
        console.log('Received from client: %s', message);
        ws.send('Server received from client: ' + message);
    });
 });

　　执行node server.js