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我在本文中使用了 mike 编写的 node.js 的多房间聊天应用程序示例。并将其更改为使用从 php 会话处理程序中获取的会话数据,直到现在

这是我到目前为止写的代码的一部分

var express = require('express'),
    app = express(),
    memcache = require("memcache"),
    http = require('http'),
    server = http.createServer(app),
    io = require('socket.io').listen(server),
    co = require("./cookie.js"),
    php = require('phpjs'),
    codein = require("node-codein");

//check if user loggedin
// routing
app.get('/', function (req, res) {
  res.sendfile(__dirname + '/index.html');
  var cookieManager = new co.cookie(req.headers.cookie);

  var client = new memcache.Client(11211, "localhost");
  client.connect();

    user = client.get("sessions/"+cookieManager.get("sec_session_id"), function(error, result){
            var session = JSON.parse(result);
            user = JSON.parse(session.name);
            user = user.username;
            storeUsername(user);
    });

});
function storeUsername(user){
// usernames which are currently connected to the chat

var usernames = {};
io.of('/private').authorization(function (handshakeData, callback) {
  console.dir(handshakeData);
  handshakeData.foo = 'baz';
  callback(null, true);
}).io.sockets.on('connection', function (socket) {
    usernames[socket.id] = socket;
    // when the client emits 'sendchat', this listens and executes
    socket.on('sendchat', function (data) {
        // we tell the client to execute 'updatechat' with 2 parameters
    io.sockets.emit('updatechat', socket.username, data);
    });

    // when the client emits 'adduser', this listens and executes
    socket.on('adduser', function(username){
        // we store the username in the socket session for this client
        socket.username = user;
        // add the client's username to the global list
        // echo to client they've connected
        if(php.in_array(socket.username,usernames)){
            delete usernames[socket.username];
        }else{
            usernames[user] = user;
            console.log('not exist');
        socket.emit('updatechat', 'SERVER', 'you have connected');
        // echo globally (all clients) that a person has connected
        socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
        // update the list of users in chat, client-side
        io.sockets.emit('updateusers', usernames);
        }
    });

    // when the user disconnects.. perform this
    socket.on('disconnect', function(){
        // remove the username from global usernames list
        delete usernames[socket.username];
        // update list of users in chat, client-side
        io.sockets.emit('updateusers', usernames);
        // echo globally that this client has left
        socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected');
    });
});
}
server.listen(3000);

例如,用户 master 将连接到我们的聊天室,他的用户名将存储在基于 php 的应用程序中。但是现在问题出在哪里?当用户 master 从我们浏览器的 2 或 3 选项卡连接时,他将连接到套接字服务器 3 或 4次,如果他发布一些数据,我们就会得到这个结果

master : hello
master : hello
master : hello

我希望用户只连接到我的应用程序一次,并且可以只发布一次数据。现在我应该如何实现呢?

如果互相私信,我应该如何访问这些用户

我是 node.js.my bad.sorry 的新手

提前感谢您的帮助。+1 所有老师

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1 回答 1

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1)你可以(似乎), var app = require('express').express(); 2)在第一个 app.get 上,您不需要放置 2 次 JSON.parse,也许第二个 JSON.parse 不是您想要的(您是否试图检索用户抛出该字段?) 3)最重要:使用房间,必须使用 socket.join 加入房间,如果不这样做,socket.broadcast 将没有任何特殊效果...要从房间中删除用户,请使用 socket.leave

于 2013-01-18T10:10:56.820 回答