centos7 + nodejs + websocket使用样例

一、centos安装nodejs

Node.js v8.x安装命令
#curl --silent --location https://rpm.nodesource.com/setup_8.x | bash -
Node.js v7.x安装命令

#curl --silent --location https://rpm.nodesource.com/setup_7.x | bash -
Node.js v6.x安装命令

#curl --silent --location https://rpm.nodesource.com/setup_6.x | bash -
Node.js v5.x安装命令

#curl --silent --location https://rpm.nodesource.com/setup_5.x | bash -

用yum 安装 node.js
#yum install -y nodejs

二、安装nodejs-websocket

#npm install nodejs-websocket

三、服务器

nodejs代码，注意关闭防火墙。systemctl stop firewalld
vim test.js 编辑
node test.js 运行

var ws = require("nodejs-websocket");
console.log("开始建立连接...")

var game1 = null,game2 = null , game1Ready = false , game2Ready = false;
var server = ws.createServer(function(conn){
    conn.on("text", function (str) {
        console.log("收到的信息为:"+str)
        if(str==="game1"){
            game1 = conn;
            game1Ready = true;
            conn.sendText("success");
        }
        if(str==="game2"){
            game2 = conn;
            game2Ready = true;
        }

        if(game1Ready&&game2Ready){
            game2.sendText(str);
        }

        conn.sendText(str)
    })
    conn.on("close", function (code, reason) {
        console.log("关闭连接")
    });
    conn.on("error", function (code, reason) {
        console.log("异常关闭")
    });
}).listen(8001)
console.log("WebSocket建立完毕")

四、客户端

html页面运行

var ws = require("nodejs-websocket");
console.log("开始建立连接...")

var game1 = null,game2 = null , game1Ready = false , game2Ready = false;
var server = ws.createServer(function(conn){
    conn.on("text", function (str) {
        console.log("收到的信息为:"+str)
        if(str==="game1"){
            game1 = conn;
            game1Ready = true;
            conn.sendText("success");
        }
        if(str==="game2"){
            game2 = conn;
            game2Ready = true;
        }

        if(game1Ready&&game2Ready){
            game2.sendText(str);
        }

        conn.sendText(str)
    })
    conn.on("close", function (code, reason) {
        console.log("关闭连接")
    });
    conn.on("error", function (code, reason) {
        console.log("异常关闭")
    });
}).listen(8001)
console.log("WebSocket建立完毕")

服务器运行效果。

客户端运行效果。