如何设置节点socket.io

npm install socket.io

const http = require('http');
const server = http.createServer();

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});

const socketIO = require('socket.io');
const io = socketIO(server);

io.on('connection', (socket) => {
  console.log('A client connected');
  
  // 在这里处理客户端的事件和消息
});

io.on('connection', (socket) => {
  console.log('A client connected');
  
  socket.on('message', (data) => {
    console.log('Received message:', data);
    
    // 在这里处理接收到的消息
  });
  
  socket.emit('customEvent', 'Hello from server');
  
  // 在这里处理其他客户端事件
});

<script src="https://cdn.socket.io/socket.io-3.1.3.js"></script>
<script>
  const socket = io('http://localhost:3000');
  
  socket.on('connect', () => {
    console.log('Connected to server');
    
    socket.emit('message', 'Hello from client');
  });
  
  socket.on('customEvent', (data) => {
    console.log('Received custom event:', data);
    
    // 在这里处理接收到的自定义事件
  });
  
  // 在这里处理其他服务器事件和消息
</script>