我是nodejs的菜鸟，但尝试与一些用户创建一个聊天室，它有效，但现在我想在聊天中使用命令“/ w”发送私人消息，例如：
/ w大卫你好，你好吗？
只有David可以阅读msg。 问题是每个人都可以读取我的私人消息，例如David，从所有用户收到它，wtf？
这是我的server.js
//Création d'un serveur
var http = require('http');
var md5 = require('MD5');
var io = require('socket.io');
function rand(){
return (Math.round(Math.random())-0.5);
}
var colors = new Array('#a8291a','#a5992f','#f24816','#24dc61','#a7954a','#b2676e','#ec4458');
//Démarrage du serveur.
httpServer = http.createServer(function(req,res){
console.log('Page affichée par un utilisateur');
})
httpServer.listen('4120');
var users = {};
var clients = [];
/**
* Installation socket.io : npm install socket.io
*/
io = io.listen(httpServer);
io.sockets.on('connection', function(socket){
var me = false;
for(var k in users){
socket.emit('newuser', users[k]);
}
/**
* Reception de message.
**/
socket.on('newmsg',function(message){
message.user = me;
date = new Date();
message.h = date.getHours();
message.m = date.getMinutes();
message.s = date.getSeconds();
io.sockets.emit('newmsg', message);
});
/**
* Connexion.
**/
socket.on('login', function(user){
var hs = socket.handshake;
me = user;
me.id = user.mail.replace('@','-').replace('.','-');
me.avatar = 'https://gravatar.com/avatar/' + md5(user.mail) + '?s=32&d=identicon';
me.color = colors[Math.floor(Math.random()*colors.length)];
clients[me.id] = socket.id;
socket.emit('logged');
users[me.id] = me;
//io.sockets.emit permet d'envoyer l'action à tous les utilisateurs.
io.sockets.emit('newuser',me);
});
/**
* Inscription à une room.
**/
socket.on("private", function(data) {
io.to(clients[data.dest]).emit("private", { from: me.id, to: data.dest, msg: data.msg });
io.to(clients[me.id]).emit("private", { from: me.id, to: data.dest, msg: data.msg });
});
/**
* Deconnexion.
**/
socket.on('disconnect', function(){
if(!me)
return false;
delete users[me.id];
io.sockets.emit('discuser',me);
})
});
这是我的client.js
(function($){
var socket = io.connect('http://192.168.1.72:4120');
var msg = $('#msg').html();
$('#msg').remove();
$('#loginform').submit(function(event){
event.preventDefault();
socket.emit('login', {
username : $('#username').val(),
mail : $('#mail').val()
})
});
socket.on('logged', function(){
$('#login').fadeOut();
$('#form').fadeIn();
$('#messages').fadeIn();
$('#message').focus();
});
/**
* Envois de message.
**/
$('#form').submit(function(event){
event.preventDefault();
//Le serveur se souvient de l'utilisateur connecté sur ce socket, pas besoin de le define.
//Si le message n'est pas vide on envoie le message.
if( $.trim( $('#message').val() ) != '' ){
socket.emit('newmsg', {message: $('#message').val()});
$('#message').val('');
$('#message').focus();
}
});
socket.on('newmsg', function(message){
if (message.message.substr(0, 3) == "/w "){
var destinataire_id = message.message.split(' ')[1];
console.log(destinataire_id);
message.message = message.message.replace('/w ','').replace(destinataire_id,'');
socket.emit("private", { msg: message.message, dest: destinataire_id});
}else{
if (($('#messages')[0].scrollHeight - $('#messages').scrollTop()) == $('#messages').height())
{
$('#messages').append('<div class="message">'+Mustache.render(msg, message)+'</div>');
$('#messages').scrollTop($('#messages')[0].scrollHeight);
}else{
$('#messages').append('<div class="message">'+Mustache.render(msg, message)+'</div>');
}
}
});
socket.on("private", function(data) {
$('#messages').append('<li class="private"><em><strong>'+ data.from +' -> '+ data.dest +'</strong>: '+ data.msg +'</em></li>');
})
/**
* Gestion des connectés.
**/
socket.on('newuser', function(user){
$('#users').append('<div id="'+ user.id +'" class="row one_user">'+
'<div class="col-md-2 vcenter"><img src="'+ user.avatar +'"/></div>'+
'<div class="col-md-9 vcenter">'+ user.username +'</div>'+
'</div>'
);
})
socket.on('discuser', function(user){
$('#' + user.id).remove();
})
/* socket.emit('send message', {
room: conversation_id,
message: $('#message_'+conversation_id)
}); */
})(jQuery);
如果你需要，我的html：
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="css/bootstrap.min.css">
<style>
#messages{
min-height:300px;
overflow-y:auto;
max-height:600px;
}
#messages,#form{
display:none;
}
.clear{
clear:both;
}
.vcenter {
display: inline-block;
vertical-align: middle;
float: none;
}
.vtop {
display: inline-block;
vertical-align: top;
float: none;
}
.top-margin{
margin-top:25px;
}
small{
font-size:70%;
}
.message{
margin:5px 0;
}
::-webkit-scrollbar {
width: 12px;
}
::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(214, 94, 0, 0.5);
border-radius: 5px;
}
::-webkit-scrollbar-thumb {
border-radius: 5px;
-webkit-box-shadow: inset 0 0 6px rgba(214, 94, 0, 0.5);
}
#users>div{
margin-top:10px;
}
</style>
</head>
<body>
<div class="container top-margin">
<div class="col-md-9">
<div class="row panel panel-default" id="messages">
<ul class="nav nav-tabs">
<li class="active">
<a href="#"># All</a>
</li>
</ul>
<div class="message" id="msg" style="display:none;">
<style>
.info_{{ user.username }} {
min-height: 50px;
position: relative;
-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 5px;
padding:8px;
background : {{ user.color }}
}
.info_{{ user.username }}:before {
content:"";
position: absolute;
right: 100%;
top: 10px;
width: 0;
height: 0;
border-top: 5px solid transparent;
border-bottom: 5px solid transparent;
border-right : 14px solid {{ user.color }}
}
</style>
<div style="text-align:center;" class="col-md-2 vtop">
<img src="{{{user.avatar}}}" />
<p><strong>{{user.username}}</strong></p>
</div>
<div class="info_{{ user.username }} col-md-9 vtop">
{{message}} <br/>
<small>Posté à : {{h}}:{{m}}:{{s}}</small>
</div>
</div>
</div>
<form class="row" action="" id="form">
<div class="col-md-12">
<div class="input-group">
<input id="message" type="text" class="form-control" placeholder="Type your text here...">
<span class="input-group-btn">
<button class="btn btn-default" type="submit">Envoyer</button>
</span>
</div>
</div>
</form>
</div>
<div class="col-md-3">
<div class=" panel panel-default">
<div class="panel-heading">Utilisateurs en ligne</div>
<div class="panel-body" id="users"></div>
</div>
</div>
</div>
<div id="login">
<form action="" id="loginform">
<h1>Bienvenue</h1>
<p>Veuillez vous connecter pour continuer.</p>
<input type="text" name="login" id="username" placeholder="Nom user">
<input type="mail" name="mail" id="mail" placeholder="mail">
<input type="submit" value="Envoyer">
</form>
</div>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script src="http://192.168.1.72:4120/socket.io/socket.io.js"></script>
<script src="js/mustache.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script type="text/javascript" src="js/client.js"></script>
</body>
</html>
如果您对我的私信如何运作有所了解？
谢谢！
答案 0 :(得分：0)
最简单的想法;将他们的用户名和socket.id一起存储在一个对象或另一个数据存储区中。
服务器端;
var users = {};
socket.on('login', function(user){
// on connection store users, you can delete object properties on disconnect
users[user.username] = socket.id; // usernames and their socket ids are related now.
});
socket.on('newmsg', function(message){
if(message.indexOf('/w') == 0){ // Check, is user whispering
var messageArray = message.split(' '); // Split string as array
var username = messageArray[1]; // we got username
var msg = messageArray.splice(2).join(' '); // join message's words
socket.broadcast.to(users[username]).emit('newmsg', msg); // david gets message (users[username] gives his socket.id)
}else{
// send message everybody
}
});
所以我们有最简单的私人消息传递机制。