从另一个域访问 swf

Question

当尝试从与我的 swf 域不同的域加载 swf 时，我收到此错误：

*** Security Sandbox Violation ***
SecurityDomain 'file:///C:/Documents and Settings/Welcome/My Documents/Flex Builder 3/SwfLoad/bin-debug/SwfLoad.swf' tried to access incompatible context  

    'http://example.com/crossdomain.xml'
loading of class failed. class name is MGroundTileInsideZ1 failure error is SecurityError:  
 Error #2119: Security sandbox violation: caller file:///C:/Documents and Settings/Welcome/My Documents/Flex Builder 3/SwfLoad/bin-debug/SwfLoad.swf   
cannot access LoaderInfo.applicationDomain owned by http://example.com/zoom_assets/GroundTiles.swf.

这是我的 crossdomain.xml ：

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<site-control permitted-cross-domain-policies="all"/>
<allow-access-from domain="*" to-ports="*" secure="false"/>
<allow-http-request-headers-from domain="*" headers="*" secure="false"/>

这是我的操作脚本代码：

package {
    import flash.display.Loader;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.net.URLRequest;
    import flash.system.ApplicationDomain;
    import flash.system.LoaderContext;
    import flash.system.Security;

    public class SwfLoad extends Sprite
    {
        public function SwfLoad()
        {
            Security.loadPolicyFile("http://example.com/crossdomain.xml");
            var loader:Loader = new Loader();
            var url:String = "http://example.com/zoom_assets/GroundTiles.swf";
            var request:URLRequest = new URLRequest(url);
            var context:LoaderContext = new LoaderContext();
            context.checkPolicyFile = true;
            context.applicationDomain = ApplicationDomain.currentDomain;
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
                    function(e:Event):void {
                        try {
                            var className:String = "MGroundTileInsideZ1";
                           var appDomain:ApplicationDomain = loader.contentLoaderInfo.applicationDomain;
                            var cl:Class = appDomain.getDefinition(className) as Class;
                            //var cl:Class = getDefinitionByName(className) as Class;
                        }
                        catch (e:Error) {
                             trace("loading of class failed. class name is " + className + " failure error is " + e);
                         }
                    });
            loader.load(request,context);
        }
    }
}

Answer 1

context.securityDomain = SecurityDomain.currentDomain;

我也必须包括上面的行...

事实上，我可以取消 :

 Security.loadPolicyFile("http://mydomain.com/crossdomain.xml");

和

 context.checkPolicyFile = true;  

Answer 2

尝试从本地 Web 服务器而不是文件系统执行 SWF。
在 Flash Builder 中，转到项目属性并选择 Flex 构建路径。更改输出文件夹和输出文件夹 URL 以匹配 Web 服务器的文档根目录及其相应的 URL。

如果您仍然需要从本地文件系统启动 SWF，请尝试调整 Flash Player 的安全设置并将您的本地目录添加到受信任的目录中。