[英]How to emit event to same user which is opened in different tabs or browser in socket.io?
我發現通過創建空間可以執行..但是有些地方出了問題。
服務器端:-
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var users = {};
var rooms = [];
http.listen(3000, function(){
console.log('listening on *:3000');
});
io.on('connection', function(socket){
socket.on('Init', function(data){
if(data in users){
var roomName = 'room'+ data;
var index = rooms.indexof(roomName);
if(rooms.notContain(roomName)){
rooms.push(roomName);
var index = rooms.indexof(roomName);
users[data].join(rooms[index]);
socket.join(rooms[index]);
}else{
socket.join(rooms[index]);
}
}else{
socket.username = data;
users[socket.username] = socket;
}
var indo = rooms.indexof('room'+ data);
socket.in(rooms[indo]).emit('hai', data);
});
});
Array.prototype.indexof = function(Obj){
return this.indexOf(Obj);
}
Array.prototype.notContain = function(Obj){
for(i in this){
if(this[i] === Obj) return false;
}
return true;
}
客戶端:-
var socket = io.connect('http://localhost:3000', { 'forceNew': true});
var userId = '<?php echo $_GET['userId'] ?>';
socket.on('connect', function(){
socket.emit('Init', userId);
});
socket.on('hai', function(data){
alert(data);
});
請檢查或讓我獲得其他解決方案來解決此問題。 我希望同一用戶發出在不同瀏覽器或選項卡中打開的用戶。
我猜您正在嘗試向同一用戶的所有連接發送消息。 這是一種方法:
var user_sockets = {};
io.on('connection', function(socket){
socket.on('Init', function(data){
if (typeof user_sockets[data] === 'undefined') {
user_sockets[data] = [];
}
user_sockets[data].push(socket);
for (var i = 0; i < user_sockets[data].length; i++) {
var s = user_sockets[data][i];
s.emit('hai', data);
}
});
});
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