Cordova插座IO XHR轮询错误

我在apache cordova应用程序中的socket.io服务器和socket.io客户端之间遇到了困难。它只是不会连接到我在node.js。

我的socket.io服务器代码如下：

var server = require('http').createServer();
var io = require('socket.io')(server);
io.on('connection', function(socket) {
    console.log('socket connected');
    socket.on('disconnect', function () {
        console.log('socket disconnected');
    });
    socket.emit('text', 'wow. such event. very real time.');
});
server.listen(3000);

我的Cordova JS代码如下：

document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
    console.log("Hello from app 1234");
    var socket = io('http://localhost:3000', {reconnect: true});
    console.log("socket created");
    socket.on('connect', function() {
        console.log("Connection created!");
        alert("connection ok");
        socket.on('text', function(text) {
            alert(text);
        });
    });
}

当我在Cordova服务的浏览器中本地执行它时，运行良好。当我对任何服务器进行常规xmlhttprequest（）进行常规XMLHTTPREQUEST（）时，我对其进行了测试，并且可以接收JSON。

错误：

"socket.io-client:manager connect_error +49ms"
"engine.io-client:socket socket error %j +50ms",Error: xhr poll error
"socket.io-client:manager connect attempt will timeout after %d     +113ms",20000
"engine.io-client:polling-xhr xhr poll +5s"
"engine.io-client:polling-xhr xhr data %s +1ms",null
"engine.io-client:socket setting transport %s +110ms","polling"
"engine.io-client:polling-xhr xhr open %s: %s +28ms","GET","http://localhost:3000/socket.io/?EIO=2&transport=polling&t=1481551911376-8"

我的问题是什么？我该如何进行调试？

编辑：我正在使用cordova emulate android