javascript 我如何获得 socket.username ？(socket.io)
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How I can get a socket.username ? (socket.io)
提问by vagabund
I want to write a simple chat for practical experience.
我想写一个简单的聊天，以获得实践经验。
All right, but I can't get a socket.nickname for notice a join/leave from the room. (when I tried pass its, he always sad a 'undefined').
好的，但我无法获得 socket.nickname 以通知加入/离开房间。（当我尝试通过它时，他总是悲伤一个“未定义”）。
Now all right, tried to create list of rooms
现在好了，尝试创建房间列表
UPDATE CODE:
更新代码：
client.js:
客户端.js：
$('#roomForm').submit(function() {
socket.emit('createRoom', $('#roomName').val());
$('#roomForm').hide();
$('#chatForm').show();
return false;
});
socket.on('message', function(data) {
newMessage(data);
});
socket.on('showRooms', function(rooms) {
console.log(rooms);
for(var i = 0; i < rooms.length; i++) {
$('#rooms').append($('<li>')
.append($('<form id="freeRoom">')
.append($('<span id="room">').text(rooms[i] + ' ///'))
.append($('<button>').text('connect'))));
};
});
$('#freeRoom').submit(function() {
socket.emit('connectToRoom', $('#room').text());
return false;
});
server.js:
服务器.js：
io.on('connection', function(socket) {
socket.on('sendNickname', function(username) {
socket.username = username;
users.push(socket.username);
socket.emit('showRooms', rooms);
});
socket.on('disconnect', function() {
socket.broadcast.to(socket.room).emit('notice', socket.username + ' has left the room');
users.splice(users.indexOf(socket.username), 1);
socket.emit('showRooms', rooms);
});
socket.on('message', function(data) {
socket.broadcast.to(socket.room).emit('message', data);
});
socket.on('createRoom', function(room) {
socket.leave(socket.room);
socket.room = room;
rooms.push(socket.room);
socket.join(socket.room);
socket.emit('showRooms', rooms);
console.log('Rooms: ' + rooms);
socket.broadcast.to(socket.room).emit('notice', socket.username + ' has joined to room');
});
socket.on('connectToRoom', function(room) {
console.log('Will connect to that room: ' + room);
socket.join(room);
});
});
**UPD 2: ** Tried to connect free created room:
**UPD 2：** 尝试连接免费创建的房间：
$('#freeRoom').submit(function() {
socket.emit('connectToRoom', $('#room').text());
return false;
});
P.S. And... Sorry for my english >.<
PS 和...对不起我的英语>.<
回答by misko321
The event name that you emit, that is 'connect'is reserved in Socket.ioalong with 'message'and 'disconnect':
您发出的事件名称，即'connect'与'message'和'disconnect'一起保留在Socket.io 中：
http://socket.io/docs/#sending-and-receiving-events
http://socket.io/docs/#sending-and-receiving-events
Socket.IO allows you to emit and receive custom events. Besides connect, messageand disconnect, you can emit custom events:
...
Socket.IO 允许您发出和接收自定义事件。除了 connect，message和disconnect，您还可以发出自定义事件：
...
Change it to something else, e.g:
将其更改为其他内容，例如：
Server.js:
服务器.js：
io.on('connection', function(socket) {
socket.on('send-nickname', function(nickname) {
socket.nickname = nickname;
users.push(socket.nickname);
console.log(users);
});
...
Client.js
客户端.js
socket.emit('send-nickname', nickname);
