Question

我正在使用TCP连接和node.js构建一个简单的聊天室。我期待文本在“Enter”之后传输，但是发生的是每个字符在按下之后立即发送。这是我的代码......

var server = net.createServer(function(conn){
    console.log('\033[92m  new connection! \033[39m');
    conn.write('> welcome to \033[92mnode-chat\033[39m! \n'
    + '> ' + count + ' other people are connected at this time.'
    + '\n > please write your name and press enter: '
  );

  count ++;
  conn.setEncoding('utf8');
  conn.on('data', function(data){
        console.log(data);
  });

  conn.on('close', function(){
        count --;
    });
});

Answer 1

听起来telnet通过自己的TCP请求发送每个字符我建议您使用不同的方法来监听在每个连接上创建的套接字。通过这种方式，您将能够自己管理每个插槽，而不是从中心位置管理，这可能会变得单调乏味：

var server = net.createConnection(...
  ...
});
server.on('connection', function(socket, connection){
  //I'm adding a buffer to the socket although you might not need it (try to remove it and see what happened)
  socket.buf = '';
  var self = this; //Use it if 'this' does not work. (explanation why to do it will confuse here but if there is a need I will explain)
  //Create a listener for each socket
  socket.on('data', function(data){
    //Since telnet send each character in it's own we need to monitor for the 'enter' character
    if( (data=='\\r\\n') || (data=='\\n') ){
      console.log(this.buf);//If 'this' doesn't work try to use 'self'
      this.buf = '';
    }
    else //No 'enter' character thus concat the data with the buffer.
      this.buf += data;
  });
  socket.on('end', function(){
    //Socket is closing (not closed yet) so let's print what we have.
    if(this.buf && (this.buf.length > 0) )
      console.log(this.buf);
  });
});

在node.js中将数据从客户端传输到服务器

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