Question

从Node.js的官方聊天示例开始系统会提示用户通过注册＆＃39;向服务器发出他的名字。（client.html）：

            while (name == '') {
               name = prompt("What's your name?","");
            }                
            socket.emit('register', name );

服务器接收名称。我希望它将名称作为套接字的标识符。因此，当我需要向该用户发送消息时，我将其发送到具有其姓名的套接字（名称存储在数据库中以获取信息）。
将在此处进行更改（server.js）：

  socket.on('register', function (name) {
      socket.set('nickname', name, function () {         
         // this kind of emit will send to all! :D
         io.sockets.emit('chat', {
            msg : "naay nag apil2! si " + name + '!', 
            msgr : "mr. server"
         });
      });
   });

我努力使这项工作变得有效，因为如果我无法识别套接字，我就无法更进一步。所以任何帮助都会非常感激 更新：我知道昵称是套接字的参数，所以更具体的问题是：如何获得具有＆＃34; Kyle＆＃34;的套接字。作为发出消息的昵称？

Answer 1

将套接字存储在如下结构中：

var allSockets = {

  // A storage object to hold the sockets
  sockets: {},

  // Adds a socket to the storage object so it can be located by name
  addSocket: function(socket, name) {
    this.sockets[name] = socket;
  },

  // Removes a socket from the storage object based on its name
  removeSocket: function(name) {
    if (this.sockets[name] !== undefined) {
      this.sockets[name] = null;
      delete this.sockets[name];
    }
  },

  // Returns a socket from the storage object based on its name
  // Throws an exception if the name is not valid
  getSocketByName: function(name) {
    if (this.sockets[name] !== undefined) {
      return this.sockets[name];
    } else {
      throw new Error("A socket with the name '"+name+"' does not exist");
    }
  }

};

Node.js设置套接字ID

1 个答案: