linux

Linux中Node.js如何进行网络编程

小樊
49
2025-05-13 21:04:53
栏目: 编程语言

在Linux中,使用Node.js进行网络编程主要依赖于内置的httphttpsnetdgram等模块。以下是一些基本示例:

  1. HTTP服务器(使用http模块):
const http = require('http');

const server = http.createServer((req, res) => {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.end('Hello World\n');
});

server.listen(3000, () => {
  console.log('Server running at http://localhost:3000/');
});
  1. HTTPS服务器(使用https模块):
const https = require('https');
const fs = require('fs');

const options = {
  key: fs.readFileSync('path/to/your/private-key.pem'),
  cert: fs.readFileSync('path/to/your/certificate.pem')
};

const server = https.createServer(options, (req, res) => {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.end('Hello World\n');
});

server.listen(3000, () => {
  console.log('Server running at https://localhost:3000/');
});
  1. TCP服务器(使用net模块):
const net = require('net');

const server = net.createServer((socket) => {
  socket.write('Hello World!\n');

  socket.on('data', (data) => {
    console.log(`Received data: ${data}`);
    socket.write(`You sent: ${data}`);
  });

  socket.on('close', () => {
    console.log('Client disconnected');
  });
});

server.listen(3000, () => {
  console.log('Server listening on port 3000');
});
  1. UDP服务器(使用dgram模块):
const dgram = require('dgram');

const server = dgram.createSocket('udp4');

server.on('listening', () => {
  const address = server.address();
  console.log(`Server listening on ${address.address}:${address.port}`);
});

server.on('message', (msg, rinfo) => {
  console.log(`Received message: ${msg} from ${rinfo.address}:${rinfo.port}`);
  server.send(`Hello ${rinfo.address}`, rinfo.port);
});

这些示例展示了如何在Linux环境中使用Node.js进行基本的网络编程。你可以根据自己的需求修改代码,实现更复杂的功能。

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