在Linux中,使用Node.js进行网络编程主要依赖于内置的http
、https
、net
、dgram
等模块。以下是一些基本示例:
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/');
});
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/');
});
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');
});
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。