小编Dal*_*ale的帖子

很难实现node.js/server.js设置

我现在有点卡住了,希望有人可以解决一些问题.我对套接字一般来说比较新,但是已经在javascript中打开和关闭了几年,尽管只有完成手头任务所需的深度.因此,我对javascript堆栈堆和一般套接字的一些概念的理解有些局限.好的情况如下:

我创建了一个应用程序,旨在简单地在几台机器上增加一个计数器.有几个用户可以点击"下一步"按钮,它会立即在所有机器上更新.首次连接时,它会检索当前数字,并在本地将其吐出.

我在这里创建了服务器:

var io = require("socket.io");
var sockets = io.listen(8000);
var currentlyServing=0;
sockets.on("connection", function (socket)
{ 
    console.log("client connected");
    socket.emit("receive", currentlyServing);
    socket.on("update", function(serving)
    {
        currentlyServing=serving;
        if(currentlyServing>100)
            currentlyServing=0;
        if(currentlyServing<0)
            currentlyServing=99;
        socket.broadcast.emit("receive", currentlyServing);
        console.log("update received: "+currentlyServing);
    });
});
console.log("Server Started");

以下是客户端的相关(我希望)摘录:

var socket = io.connect("http://www.sampledomain.com:8000");

//function to update the page when a new update is received
socket.on("receive", function(receivedServing)
{
    document.getElementById('msgs').value=""+String("00" + receivedServing).slice(-2);
    document.getElementById('nowServing').value=receivedServing;
});

//this is called in an onClick event in the HTML source
//sends the new number to all …