const WebSocket = require('ws');

// 创建WebSocket服务器实例
const wss = new WebSocket.Server({ port: 8080 });

wss.on('connection', function connection(ws) {
    // 当客户端连接时触发

    ws.on('message', function incoming(message) {
        // 当服务器接收到客户端发来的消息时触发
        console.log('received: %s', message);
    });

    // 发送消息到客户端
    ws.send(JSON.stringify({
        type: '2',
        message: 'message',
    }));
});

console.log('WebSocket server is running on ws://localhost:8080');