我有一个问题，而从XML文件中的动作脚本3阅读。

I have a problem while reading from XML file in action script 3.

这是我的XML文件：

<config>

    <production>
        <app_id>123</app_id>
        <server_path>http://someLinktoAccess</server_path>
        <assets_server>http://someLinktoAccess</assets_server>
        <payment_url_callback>http://someLinktoAccess</payment_url_callback>
    </production>

    <stage>
        <app_id>123</app_id>
        <server_path>http://someLinktoAccess</server_path>
        <assets_server>http://someLinktoAccess</assets_server>
        <payment_url_callback>http://someLinktoAccess</payment_url_callback>
    </stage>

    <dev>
        <app_id>123</app_id>
        <server_path>http://someLinktoAccess</server_path>
        <assets_server>http://someLinktoAccess</assets_server>
        <payment_url_callback>http://someLinktoAccess</payment_url_callback>
    </dev>

    </config>

我要访问的每个键 - 值对在该文件中。所以我想从这里4字符串变量来获得：APP_ID，的server_path，assets_server，payment_url_callback。我怎样才能让他们??

现在我用这样的code：

Now I'm using such a code:

private function loadXmlConfig():void
        {
            //load the loading config xml
            var xmlLoader:URLLoader = new URLLoader();
            var load_config_path:String = "http://dl.dropbox.com/u/28744968/android_vs.xml";
            xmlLoader.addEventListener(Event.COMPLETE, xmlConfigLoadingSuccessed);
            xmlLoader.addEventListener(IOErrorEvent.IO_ERROR,  xmlConfigLoadingFailed);
            xmlLoader.load( new URLRequest( load_config_path ) );
        }

        private function xmlConfigLoadingSuccessed(event:Event):void
        {
            var load_config:XML = new XML( event.target.data );
            trace(load_config.config.dev.app_id.value);
            //startup facade
            GameFacade.getInstance().startup( StartupCommand, this );
        }

该文件被加载的所有值，但我不能访问它们。

The file is loaded with all values, but I can't access any of them.

什么意思的：

var library:XML
 library.@url

感谢您！

推荐答案

在使用XML类，你不引用根节点你的情况配置

When using XML class you do not reference the root node in your case "config"

// your code
trace(load_config.config.dev.app_id.value);

// correct code
// the toString method should be called automatically
trace(load_config.production.app_id);

并回答您的其他问题。

And to answer your other question.

var library:XML
 library.@url

@符号来访问属性。

the @ symbol is used to access attributes.

<library id=123 >

你为什么把你的配置文件作为一个XML呢？ 这种类型的事情我创建一个配置文件/类/辛格尔顿的。

Why are you putting your config file as an xml anyway? This Type of thing I create a config file/class/Singleton for.