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Unity crossdomain.xml

c#unity-game-enginecrossdomain.xml
3
我收到了有关crossdomain.xml文件的错误信息，但不知道如何解决。我可以在Web浏览器中轻松访问该URL。
从Web浏览器访问：
http://192.168.1.116:80/locJSON.txt

从网页浏览器中提取了一个漂亮的 JSON 代码段

来自网络浏览器

http://192.168.1.116/crossdomain.xml

返回跨域信息

<site-control permitted-cross-domain-policies="all"/>
<allow-access-from domain="*" to-ports="*" secure="false"/>
<allow-access-from domain="*" to-ports="*"/>
<allow-access-from domain="*"/>
<allow-http-request-headers-from domain="*"  to-ports="*"/>
<allow-http-request-headers-from domain="*"/>
<site-control permitted-cross-domain-policies="all"/>

然而，如果在Unity中尝试以下代码，就会遇到问题。

private void QueryAIServer()
{
    string url = "http://192.168.1.116/locJSON.txt";
    WWW AIServer = new WWW(url);

    while(!AIServer.isDone) { };

    Debug.Log("Connected to AI Server!");
}

当我通过while循环之后，在调试器中检查AIServer变量内部时，我可以看到红色的消息“System.Security.SecurityException: No valid crossdomain policy available to allow access”分别应用于AIServer.bytes、AIServer.data和AIServer.text。
同时，我在控制台中也会输出以下信息。如有任何见解，敬请赐教。

UriFormatException: Invalid URI: The format of the URI could not be determined.

MonoForks.System.Uri..ctor (System.String uriString, Boolean dontEscape) MonoForks.System.Uri..ctor (System.String uriString) (wrapper remoting-invoke-with-check) MonoForks.System.Uri:.ctor (string) MonoForks.System.Windows.Interop.PluginHost.get_SourceUri () MonoForks.System.Windows.Browser.Net.CrossDomainPolicyManager.GetCachedWebPolicy (MonoForks.System.Uri uri) UnityEngine.UnityCrossDomainHelper.GetSecurityPolicy (System.String requesturi_string, IPolicyProvider policyProvider) UnityEngine.UnityCrossDomainHelper.GetSecurityPolicy (System.String requesturi_string) UnityEngine.WWW:get_isDone() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:556) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

You are trying to load data from a www stream which had the following error when downloading. Rejected because no crossdomain.xml policy file was found UnityEngine.WWW:get_assetBundle() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

Unable to determine the audio type from the URL (http://192.168.1.116/locJSON.txt) . Please specify the type. UnityEngine.WWW:get_audioClip() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

Streaming of 'ogg' on this platform is not supported UnityEngine.WWW:get_oggVorbis() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

You are trying to load data from a www stream which had the following error when downloading. Rejected because no crossdomain.xml policy file was found UnityEngine.WWW:get_size() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

You are trying to load data from a www stream which had the following error when downloading. Rejected because no crossdomain.xml policy file was found UnityEngine.WWW:get_texture() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

You are trying to load data from a www stream which had the following error when downloading. Rejected because no crossdomain.xml policy file was found UnityEngine.WWW:get_textureNonReadable() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

Unable to determine the audio type from the URL (http://192.168.1.116/locJSON.txt) . Please specify the type. UnityEngine.WWW:get_audioClip() PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:559) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)

Connected to AI Server! UnityEngine.Debug:Log(Object) PlayEditorMain:QuerryAIServer() (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:558) PlayEditorMain:ButtonPressed(GameObject) (at Assets/Scripts/Play Editor Scripts/Menu Scripts/PlayEditorMain.cs:262) MainMenuButton:OnClick() (at Assets/Scripts/Play Editor Scripts/Menu Buttons/MainMenuButton.cs:23) UnityEngine.GameObject:SendMessage(String, Object, SendMessageOptions) UICamera:Notify(GameObject, String, Object) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:765) UICamera:ProcessTouch(Boolean, Boolean) (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1435) UICamera:ProcessMouse() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:1063) UICamera:Update() (at Assets/3rd Party/NGUI/Scripts/UI/UICamera.cs:909)
嘿，你得到答案了吗？我也遇到了同样的问题。 - Muhammad Faizan Khan
2个回答
1
一件让我多次遇到问题的事情是没有将其保存为UTF-8编码。如果你在记事本中打开并进行更改后重新保存，一些编辑器会这样做。记事本（至少Windows 8.1版本）有一个选择框，用于检查你想要使用的编码类型，默认为ANSI。
编辑： 有一件事我想确保——我确定你只是省略了它，但为了清晰起见，跨域需要用<cross-domain-policy></cross-domain-policy>标签包围，并且与所有XML文件一样，第一个元素需要是<?xml version="1.0" ?>。总共……
<?xml version="1.0" ?>
<cross-domain-policy>
    <site-control permitted-cross-domain-policies="all"/>
    <allow-access-from domain="*" to-ports="*" secure="false"/>
    <allow-access-from domain="*" to-ports="*"/>
    <allow-access-from domain="*"/>
    <allow-http-request-headers-from domain="*"  to-ports="*"/>
    <allow-http-request-headers-from domain="*"/>
    <site-control permitted-cross-domain-policies="all"/>
</cross-domain-policy>
这是文件 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.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-access-from domain="*" to-ports="*"/> <allow-access-from domain="*"/> <allow-http-request-headers-from domain="*" to-ports="*"/> <allow-http-request-headers-from domain="*"/> <site-control permitted-cross-domain-policies="all"/> </cross-domain-policy> - Dalanchoo
我没有使用你在这个文件中使用的许多元素类型，但值得问一下，是否有一个更简单的版本的文件可以工作，比如 <?xml version="1.0" ?> <cross-domain-policy> <allow-access-from domain="*" /> </cross-domain-policy>。 - aqez
你的简化文件产生了相同的结果。 - Dalanchoo
@Dalanchoo，你找到答案了吗？请发布你的问题的答案，我几乎遇到了相同的错误。 - Muhammad Faizan Khan
0

尝试使用此标准允许所有的crossdomain.xml：

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>

   <allow-access-from domain="*" secure="false" />
</cross-domain-policy>
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