node tcp 示例

tcp.js

// server.js

'use strict';

const net = require('net');

const server = net.createServer(function (socket) {
  socket.setEncoding('utf-8');
  // 新的连接
  socket.on('data', function (data) {
    console.log(data);
    // console.log(data.toString());
    socket.write('你好');
  });

  socket.on('end', function () {
    console.log('连接断开');
  });

  socket.write('示例：\n');
});

server.listen(8124, function () {
  console.log('server bound');
});




// client.js

'use strict';

const net = require('net');

const client = net.connect({ port: 8124 }, function () {
  console.log('client connected');
  client.write('hello\n');
});

client.setEncoding('utf-8');

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

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




// echo.js

'use strict';

const net = require('net');

const server = net.createServer(function (socket) {
  socket.write('Echo server\n');
  socket.pipe(socket);
});

server.listen(8124);