仓库源文，站点原文

title: 深入浅出NodeJS——数据通信，NET模块运行机制 categories:

• JavaScript
• 前端杂烩
• 网络交互 tags:
• tech
• cnblogs
• NodeJS warning: true date: 2014-04-22 02:11:00 fromUrl: http://www.cnblogs.com/hustskyking/archive/2014/04/22/nodejs-net-module.html from: 博客园

var net = require('net');

var Net = function(){};

Net.methodA = function (){};
Net.methodB = function (){};

module.exports = Net;

// server.js
var net = require('net');
var server = net.createServer(function(socket) { //'connection' listener
    console.log('server connected');
    socket.on('end', function() {
        console.log('server disconnected');
    });
    socket.on('data', function(){
        socket.end('hello\r\n');
    });
});
server.listen(8124, function() { //'listening' listener
    console.log('server bound');
});

net.createServer = function(callback){
    // 每次客户端连接都会新建一个 socket
    var socket = new Socket();
    callback && callback(socket);
};

// client.js
var net = require("net");
var client = net.connect({port: 8124}, function(){
    console.log('client connected');
    client.write('world!\r\n');
});
client.on('data', function(data) {
    console.log(data.toString());
    client.end();
});
client.on('end', function() {
    console.log('client disconnected');
});

node server.js

node client.js

client.on('data', function(data) {
    console.log(data.toString());
    client.end();
});

// grab a random port. 
server.listen(function() {
    address = server.address();
    console.log("opened server on %j", address);
});

</li> </ul>

<p>还有 write、end、destroy、pause、resume 等等很多丰富的接口，可以在这里查看详情<a href="http://nodejs.org/api/net.html" target="_blank">http://nodejs.org/api/net.html</a>。</p>

<h3>六、小结</h3>

<p>本来打算写一个聊天室，但是这种简单的代码网络上俯拾皆是，本文目的是说清楚 TCP 连接在服务器和客户端之间的交互过程，深入的话题留到下次谈。</p>

<h3>七、参考资料</h3>