nodejs 使用net模块进行tcp通讯示例

服务器端：

var net = require('net');var server = net.createServer();server.on('close', function(){  console.log('__server close');});server.on('connection', function(socket){  console.log('__server connection')  socket.on('data',function(data){    console.log('__server receive data');    console.log(data.toString());    if(data.toString() === 'i am client'){      socket.write('i am server, i receive you message');    }  })  socket.on('error',function(error){    console.error(error);  })})server.on('error',function(error){  console.error(error);})server.listen(4000, function(){  console.log('server listen at 4000');});

客户端：

var net = require('net');var client = new net.Socket();client.connect(4000, '127.0.0.1',function(){  console.log('CONNECTED TO');  client.write('i am client');})client.on('data',function(data){  console.log('__client receive data');  console.log(data.toString());})