编辑：Socket.io已内置支持现在

当我使用socket.io时，断开连接没有发生（仅当我手动关闭服务器时）。但是您可以在例如失败10秒或发生断开事件后说几秒钟后重新连接。

socket.on('disconnect', function(){
   // reconnect
});

我想出了以下实现：

客户端JavaScript

var connected = false;
const RETRY_INTERVAL = 10000;
var timeout;

socket.on('connect', function() {
  connected = true;
  clearTimeout(timeout);
  socket.send({'subscribe': 'schaftenaar'});
  content.html("<b>Connected to server.</b>");
});

socket.on('disconnect', function() {
  connected = false;
  console.log('disconnected');
  content.html("<b>Disconnected! Trying to automatically to reconnect in " +                   
                RETRY_INTERVAL/1000 + " seconds.</b>");
  retryConnectOnFailure(RETRY_INTERVAL);
});

var retryConnectOnFailure = function(retryInMilliseconds) {
    setTimeout(function() {
      if (!connected) {
        $.get('/ping', function(data) {
          connected = true;
          window.location.href = unescape(window.location.pathname);
        });
        retryConnectOnFailure(retryInMilliseconds);
      }
    }, retryInMilliseconds);
  }

// start connection
socket.connect();
retryConnectOnFailure(RETRY_INTERVAL);

服务器端（node.js）：

// express route to ping server.
app.get('/ping', function(req, res) {
    res.send('pong');
});