javascript - Node + 远程登录 + OS X

Question

美好的一天。

var events = require('events');
var net = require('net');

var channel = new events.EventEmitter();
channel.clients = {};
channel.subscriptions = {};

channel.on('join', function(id, client) {
this.clients[id] = client;
this.subscriptions[id] = function(senderId, message) {
    if (id != senderId) {
        this.clients[id].write(message);
    }
}
this.on('broadcast', this.subscriptions[id]);
});

var server = net.createServer(function(client) {
var id = client.remoteAddress + ':' + client.remotePort;

client.on('connect', function() {
    channel.emit('join', id, client);
});
client.on('data', function(data) {
    data = data.toString();
    channel.emit('broadcast', id, data);
});
});
server.listen(8888);

当我运行服务器并通过 telnet“广播”连接时，发射不起作用。来自“Node.js 实战”的示例。图书文件中的代码也无法正常工作。请帮忙。可能出了什么问题？我尝试将 id 的生成器更改为 strong inc "i"并省略 ...if (id != senderId)... 但不起作用!!!

Answer 1

当net.createServer 的回调函数被调用时，它已经暗示了一个客户端连接。另外，我认为 connect 事件甚至不是由 net.createServer 生成的。

因此，不要在发出“join”之前等待 connect 事件，而是立即发出它:

var server = net.createServer(function(client) {
  var id = client.remoteAddress + ':' + client.remotePort;

  // we got a new client connection:
  channel.emit('join', id, client);

  // wait for incoming data and broadcast it:
  client.on('data', function(data) {
    data = data.toString();
    channel.emit('broadcast', id, data);
  });
});