Question

我创建了简单的聊天应用程序。因此我使用了node.js 我在网上看过很多简单的例子，都说代码工作正常。但是当我尝试该代码时，它并没有给我正确的结果。

抛出错误“丢弃运输”

我已阅读以下页面： 1）Examples in using RedisStore in socket.io 2）http://www.ranu.com.ar/2011/11/redisstore-and-rooms-with-socketio.html 3）socket.io broadcast function & Redis pub/sub architecture 4）I'm receiving duplicate messages in my clustered node.js/socket.io/redis pub/sub application 还有更多...

以下是我的代码：

服务器端代码：app.js ~~~~~~~~~~~~~~~~~~~~~~~~~

var app = express.createServer();
app.listen(process.env.PORT);

var io = require('socket.io').listen(app);

var store = redis.createClient();
var pub = redis.createClient();
var sub = redis.createClient();

var io = require('socket.io').listen(app);

io.configure(function () {

    //    io.enable('browser client minification');  // send minified client
    //    io.enable('browser client etag');          // apply etag caching logic based on version number
    //    io.enable('browser client gzip');          // gzip the file

    io.set('log level', 3);
    io.set("transports", ["jsonp-polling", "xhr-polling", "websocket", "flashsocket", "htmlfile"]);
    io.set("polling duration", 10);
    io.set("flash policy server", false);
    io.set("connect timeout", 500);
    io.set("reconnect", true);
    //    io.set('close timeout', 60 * 60 * 24); // 24h time out
    io.set('close timeout', 25);
    io.disable('heartbeats');
    io.set('heartbeat interval', 20);
    io.set('heartbeat timeout', 60);
    //    io.set("polling duration", 10);
    //    io.set("heartbate timeout", 30);
    //console.log("blabla");

    //var RedisStore = require('socket.io/lib/stores/redis');
    //io.set('store', new RedisStore({ redisPub: pub, redisSub: sub, redisClient: store }));
    //io.set('store', new RedisStore());
});

io.sockets.on('connection', function (client) {

    client.on("OnConnect", function (data, fn) {
        console.log("socket id : " + client.id + " connected !!!");
    });

    client.on('disconnect', function () {
        console.log("\r\nmanish from server->disconnect");
        //        client.broadcast(client.sessionId + " disconnected")
        client.emit('user disconnected');
        sub.unsubscribe("chat");
        sub.quit();
    });

    sub.subscribe("chat");
    sub.on("message", function (channel, message) {
        console.log("message received on server from publish : '" + message + "'");
        client.send(message);
    });
  });
});

客户端代码：index.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        this.Connect = function (nick, room) {
            socket = io.connect('http://XXX.XXX.X.XX', { transports: ['jsonp-polling', 'xhr-polling'] });
            Nickname = nick;
            Room = room;

//            setInterval(function () { socket.emit("keep-alive", null) }, 20 * 1000);

            socket.on('connect', function (data) {
                socket.emit('OnConnect', { nick: nick, room: room }, function (response) {
                    $("#board").append("<p>" + response.msg + "</p>");
                });
            });

            socket.on("message", function (msg) {
                alert("message received on client ...");
                $("#board").append("<p>" + msg +"</p>");
            });

            server.on("listening", function () {
                var address = server.address();
                console.log("server listening " + address.address + ":" + address.port);
            });

            socket.emit("message", { msg: msg, nick: Nickname }, function (response) {
                $("#board").append("<p> send message : " + Nickname + ": " + msg + "</p>");
            });

        };

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 但它不适合我。

意味着我在一个浏览器中运行此应用程序（比如Firefox，并发送一些消息到第二个连接，让IE说）

但是在console.log中显示以下错误

debug：设置请求GET /socket.io/1/jsonp-polling/Th9U-Zci8cVb5Wfwl24Y?t=1345123231804&i=0 debug：设置轮询超时 debug：客户端授权 debug：清除轮询超时 debug：jsonppolling编写io.j0; debug：设置客户端Th9U-Zci8cVb5Wfwl24Y的关闭超时 socket id：Th9U-Zci8cVb5Wfwl24Y连接!!! 服务器从发布收到的消息：'msg 1' debug：设置请求GET /socket.io/1/jsonp-polling/Th9U-Zci8cVb5Wfwl24Y?t=1345123231804&i=0 debug：设置轮询超时 debug：客户端授权 debug：清除轮询超时 debug：jsonppolling编写io.j0; debug：设置客户端Th9U-Zci8cVb5Wfwl24Y的关闭超时 socket id：Th9U-Zci8cVb5Wfwl24Y连接!!! 服务器从发布收到的消息：'msg 1' debug：为客户端Th9U-Zci8cVb5Wfwl24Y触发关闭超时 info：传输结束（关闭超时） debug：丢弃传输

Answer 1

Socket.io房间开箱即用，您无需订阅redis或任何东西。

尝试使用自定义连接功能

client.on("OnConnect", function (data, fn) {
    console.log("socket id : " + client.id + " connected !!!");
    client.join(data.room);
});

此外，您无需取消订阅房间，但如果您这样做，应该看起来像这样

client.on('disconnect', function () {
    console.log("\r\nmanish from server->disconnect");
    client.emit('user disconnected');
    client.leave("chat");
});

向聊天室发送消息已完成 client.broadcast.to（ '聊天'）发射（ '信息'）;

您可以在https://github.com/LearnBoost/socket.io/wiki/Rooms

了解有关房间的更多信息

祝你好运！

在node.js中使用socket.io的redis pub / sub

1 个答案: