XMLHtt prequest：网络错误0x2efd，无法完成，由于操作错误00002efd [英] XMLHttpRequest: Network Error 0x2efd, Could not complete the operation due to error 00002efd

问题描述

我使用socket.io为Windows Azure项目。奇怪的socket.io服务器启动时，我只是部署Web角色，但是当我部署整个云计算项目中，socket.io服务器犯规开始，我得到这个错误 -

 SCRIPT7002：XMLHtt prequest：网络错误0x2efd，无法完成由于错误00002efd操作。
 

我完全不知道这意味着什么。谁能帮我在这一个？我一直在敲打我的脑袋一下一整天。

SocketClient.html

 ＆LT;脚本＆GT;
变种插座= io.connect（'http://127.0.0.1:4001'）;
socket.on（'新闻'，函数（数据）{
    的console.log（数据）;
}）;$（函数（）{
    $（＃sendresponse）。绑定（点击，函数（）{
     socket.emit（'服务器'，'世界您好'）;    }）;
}
）;
＆LT; / SCRIPT＆GT;
 

App.js

  VAR应用=要求（'前preSS'）（），服务器=要求（HTTP）。createServer（APP），IO =要求（'socket.io '）。听（服务器）;server.listen（4001）;app.get（'/'，函数（REQ，RES）{
res.sendfile（__目录名称+/index.html'）;
}）;io.sockets.on（'连接'，函数（插座）{
socket.emit（'新闻'，{打招呼：第一次连接'}）;
socket.on（服务器，功能（数据）{
    的console.log（数据）;
    socket.emit（新闻，你好）;
}）;
}）;
 

解决方案

原来，即我已经把我的web.config中iisnode处理wasnt做App.js脚本不运行时我部署云计算项目，当整个云项目部署了工作。要通过此文章，我发现我后，不得不把一些文件在Web角色即我的bin文件夹 - ChangeConfig.ps1，download.ps1，node.cmd，setup_web.cmd。当你通过这篇文章可以生成这些文件。最后，你必须把这个code在ServiceDefinition.csdef中

 ＆LT;＆启动GT;
 ＆LT;任务的命令行=setup_web.cmd和放大器; GT;的log.txt的ExecutionContext =架空＆GT;
    ＆LT;环境与GT;
      ＆LT;变量名=模拟＆GT;
        ＆LT; RoleInstanceValue的XPath =/ RoleEnvironment /部署/ @效仿/＆GT;
      ＆LT; /可变＆GT;
      ＆LT;变量名=RUNTIMEIDVALUE =节点; iisnode/＆GT;
      ＆LT;变量名=RUNTIMEURLVALUE =/＆GT;
    ＆LT; /环境与GT;
  ＆LT; /任务＆GT;
＆LT; /启动＆GT;
 

和瞧！它的工作原理就像一个魅力。你仍然有通过在浏览器中运行127.0.0.1/App.js启动socket.io服务器。我仍然在寻找如何programattically开始App.js。

I am using socket.io for a windows azure project. Strangely the socket.io server starts when i just deploy the web role but when i deploy the whole cloud project, the socket.io server doesnt start and i get this error -

"SCRIPT7002: XMLHttpRequest: Network Error 0x2efd, Could not complete the operation due to error 00002efd."

I have absolutely no idea what that means. Can anyone help me out on this one? I have been banging my head about it all day.

SocketClient.html

<script>
var socket = io.connect('http://127.0.0.1:4001');
socket.on('news', function (data) {
    console.log(data);       
});

$(function () {
    $("#sendresponse").bind("click", function () {
     socket.emit('server', 'Hello World');

    });
}
);
</script>

App.js

var app = require('express')(), server = require('http').createServer(app), io = require('socket.io').listen(server);

server.listen(4001);

app.get('/', function (req, res) {
res.sendfile(__dirname + '/index.html');
});

io.sockets.on('connection', function (socket) {
socket.emit('news', { hello: 'first time connect' });
socket.on('server', function (data) {
    console.log(data);
    socket.emit('news',"hello");
});
});

解决方案

Turned out that the App.js script was not running when i deployed the cloud project, i.e the iisnode handler which i had put in my web.config wasnt doing its job when the whole cloud project was deployed. After going through this article i found out that i had to put some files in my bin folder of web role namely - ChangeConfig.ps1,download.ps1,node.cmd,setup_web.cmd. you can generate these files when you go through that article. And finally you have to put this code in your ServiceDefinition.csdef

<Startup>      
 <Task commandLine="setup_web.cmd &gt; log.txt" executionContext="elevated">
    <Environment>
      <Variable name="EMULATED">
        <RoleInstanceValue xpath="/RoleEnvironment/Deployment/@emulated" />
      </Variable>
      <Variable name="RUNTIMEID" value="node;iisnode" />
      <Variable name="RUNTIMEURL" value="" />
    </Environment>
  </Task>
</Startup>

And voila!! It works like a charm. You would still have to start the socket.io server by running 127.0.0.1/App.js on browser. I am still looking at how to start App.js programattically.

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