无法读取server.js文件中未定义错误属性
io.nsps['/'].adapter.rooms[roomName].length;
我想显示所有的用户的名字，那些连接在聊天室..当第一次加载页面时，我通过提示获取用户名和房间名…
我正在使用套接字。io v1.5.1
我已经尝试了几乎所有可用的>v1.0代码，但我失败了。
这是我的代码。
server.js
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var express = require('express');
app.use(express.static('public'));
io.on('connection', function(socket){
var userName = null;
var roomName = null;
//creating chat room
socket.on('createRoom',function(data){
userName = data.userName;
//creating or joining room
socket.join(data.roomName);
roomName = data.roomName;
//broadcasting new user joined to all other sockets in room
socket.broadcast.in(data.roomName).emit('user joined','<span style="color:#10c469 !important;"><strong>'+userName+'</strong> has joined chatroom.</span><br>');
});
var userLength = io.nsps['/'].adapter.rooms[roomName].length;
//Server receives message from client
socket.on('messageForServer',function(data){
//will alert all users
socket.emit('all users',userLength);
io.sockets.in(data.roomName).emit('messageToBeDisplayed','<strong>'+data.userName+'</strong> : '+data.message+'<br>');
});
//when user is typing
socket.on('userIsTyping',function(data){
socket.broadcast.in(roomName).emit('userIsStillTyping','<span style="color:#ff4242 !important;"<strong>'+userName+'</strong></span> is typing...</br>');
});
//when user stops typing
socket.on('noLongerTyping',function(data){
socket.broadcast.in(roomName).emit('userIsNotTyping');
});
//when user gets bored
socket.on('disconnect',function(){
socket.broadcast.in(roomName).emit('disconnected','<span style="color:#ff4242 !important;"<strong>'+userName+'</strong> has left the chat room.</span><br>');
});
});
http.listen(3000, function(){
console.log('listening on localhost:3000');
});
index . html
<!DOCTYPE html>
<html>
<head>
<title>ChatterBox</title>
<link rel="stylesheet" type="text/css" href="bootstrap/css/bootstrap.css">
<link rel="stylesheet" type="text/css" href="bootstrap/css/main.css">
<link rel="stylesheet" type="text/css" href="css/core.css">
<link rel="stylesheet" type="text/css" href="css/components.css">
</head>
<style>
.bottom{
position: fixed;
text-align: center;
bottom: 10px;
width: 100%;
}
.wrapper{
padding-top: 4%;
}
</style>
<body>
<div class="container">
<div class="row">
<nav class="navbar navbar-default navbar-fixed-top">
ChatterBox
</nav>
<div class="wrapper">
<div class="col-md-7 col-md-offset-2">
<div id="message-container"></div>
</div>
<div class="col-md-3">
<div id="typer-container"></div>
</div>
<div class="form-group bottom">
<div class="col-md-7 col-md-offset-2">
<input type="text" id="message" class="form-control" placeholder="Enter message here">
</div>
<div class="col-md-1">
<button type="button" onclick="sendMessage()" class="btn btn-trans btn-inverse waves-effect w-md waves-light m-b-5">Send</button>
</div>
</div>
</div>
</div>
</div>
</body>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/app.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script>
//initialize socket library and its object
var socket = io();
//taking input from user
var roomName = prompt("Enter name of chat room that you want to create or join");
var userName = prompt("Enter your username");
//create chat room
socket.emit('createRoom',{roomName:roomName,userName:userName});
//when user joins the chat room
socket.on('user joined',function(data){
document.getElementById('message-container').innerHTML += data;
});
//to display when user leave chat room
socket.on('disconnected',function(data){
document.getElementById('message-container').innerHTML += data;
});
//Press enter to send message code
$('#message').keypress(function(event){
if(event.which == 13){
sendMessage();
}
});
//Send message to server
function sendMessage()
{
var msg = document.getElementById('message').value;
document.getElementById('message').value = '';
if(msg){
socket.emit('messageForServer', {message: msg, roomName:roomName,userName: userName});
}
}
var typing = false;
var timeout = undefined;
//when user is no longer typing
function timeoutFunction(){
typing = false;
socket.emit('noLongerTyping');
}
function onKeyDownNotEnter(){
if(typing == false) {
typing = true;
socket.emit('userIsTyping',userName+' is typing...');
timeout = setTimeout(timeoutFunction, 5000);
} else {
clearTimeout(timeout);
timeout = setTimeout(timeoutFunction, 5000);
}
}
//User is typing functionality
$('#message').keyup(function(event){
if(event.which != 13 && userName != ''){
onKeyDownNotEnter();
}
});
socket.on('all users',function(data){
alert(data);
});
//users will see who is typing from this code
socket.on('userIsStillTyping',function(data){
document.getElementById('typer-container').innerHTML += data;
});
//remove user is typing
socket.on('userIsNotTyping',function(){
document.getElementById('typer-container').innerHTML = '';
});
//Display broadcasted message
socket.on('messageToBeDisplayed',function(data){
document.getElementById('message-container').innerHTML += data;
});
</script>
</html>
你可以试试:
//Server receives message from client
socket.on('messageForServer',function(data){
//will alert all users
var userLength = io.nsps['/'].adapter.rooms[roomName].length;
socket.emit('all users',userLength);
io.sockets.in(data.roomName).emit('messageToBeDisplayed','<strong>'+data.userName+'</strong> : '+data.message+'<br>');
});
但是它不显示连接的用户的名字，而只显示他们的号码。