js发送udp消息

const dgram = require('dgram');
const client = dgram.createSocket('udp4');

const message = Buffer.from('Hello, UDP Server!');
const server = 'localhost';
const port = 41234;

client.send(message, port, server, (err) => {
    if (err) {
        console.error('发送消息失败:', err);
    } else {
        console.log(`消息已发送到 ${server}:${port}`);
    }
    client.close();
});

const WebSocket = require('ws');
const ws = new WebSocket('ws://localhost:8080');

ws.on('open', function open() {
    const message = 'Hello, WebSocket Server!';
    ws.send(message);
});

ws.on('message', function incoming(data) {
    console.log(data);
});

ws.on('close', function close() {
    console.log('WebSocket连接已关闭');
});