Flutter套接字io未连接到节点js套接字io服务器

import 'package:flutter/material.dart';
import 'package:socket_io_client/socket_io_client.dart' as IO;

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Socket.IO Example')),
        body: SocketIOExample(),
      ),
    );
  }
}

class SocketIOExample extends StatefulWidget {
  @override
  _SocketIOExampleState createState() => _SocketIOExampleState();
}

class _SocketIOExampleState extends State<SocketIOExample> {
  IO.Socket socket;

  @override
  void initState() {
    super.initState();
    initSocket();
  }

  void initSocket() {
    socket = IO.io('http://your-server-address:port', {
      'transports': ['websocket'],
      'query': {'token': 'your-auth-token'}
    });

    socket.onConnect(() {
      print('Connected to server');
    });

    socket.onDisconnect(() {
      print('Disconnected from server');
    });
  }

  @override
  void dispose() {
    socket.disconnect();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Text('Socket.IO Connection Status'),
    );
  }
}