Question

我正在尝试在socket io服务器中构建一个数组并将其发送到客户端。

 var roomList = io.sockets.manager.rooms;

    // new Array to save the clients per room
    var clientsPerRoom = new Array();

    //for (var i = 0; i < roomList.length; i++) {
    for (var room in roomList) {
        room = room.replace("/", "");

        // get the clients per room
        var clients = io.sockets.clients(room).length;

        // saving it in the array at the name of the room
        clientsPerRoom[room] = clients;
    }
    // transmit it to the client
    io.sockets.emit('roomList', roomList, clientsPerRoom);

在客户端

var clients = 1;

        for (room in roomList) {
            if (room.length > 0) {
                room = room.replace("/", "");

                clients = clientsPerRoom[room];

                console.log("ROOM: '" + room + "' has '" + clients + "' CLIENTS");

            }
        }

在客户端，“clientsPerRoom”是“[]”（空？），因此“客户”是“未定”。我做错了什么？

如果用户是连接的，则来自服务器的控制台日志的值为1。如果有更多用户在线，那么它仍然是1，但至少它应该将此值发送给客户端。

由于

Answer 1

最终我解决了它：

 var clients = io.sockets.clients(room).length;
            // has to look like this:
            //clientsPerRoom = {"test" : 3, "xyz" : 4};
            clientString = '"' + room + '" : "' + clients + '",' + clientString;

            console.log("clientsPerRoom[" + room + "] : " + clientsPerRoom[room]);
            console.log("__END OF LOOP__");
        }
    }
    //cut the "," et the end of the string (else: ERROR!)
    clientString = clientString.substr(0, clientString.length-1);
    // parse it with JSON to pretend beeing a object
    clientsPerRoom = JSON.parse('{' + clientString + '}');

    // now send it to the client
    io.sockets.emit('roomList', roomList, clientsPerRoom, totalClients);

现在另一个问题是，

var clients = io.sockets.clients(room).length;

总是1 ...

Answer 2

甚至已经解决了。

问题是：io.sockets.clients（room）只计算接受网络摄像头访问权限的用户，否则房间里的“真的”不是。

问候

Socket.IO每发送一个数组（...）

2 个答案: