Javascript 在302重定向或嵌入/object/iframe标记内的元素后获取flash src（跨域）_Javascript_Html_Flash_Embed_Element

Javascript 在302重定向或嵌入/object/iframe标记内的元素后获取flash src（跨域）

javascript html flash

Javascript 在302重定向或嵌入/object/iframe标记内的元素后获取flash src（跨域）,javascript,html,flash,embed,element,Javascript,Html,Flash,Embed,Element,URL example.com/redir将自动将用户（HTTP 302）重定向到example.com/hi.SWF？message=message+Value 在下面的示例中，如何使用javascript或flash获取消息值 <!DOCTYPE html> <html> <body> <embed id="foo" src="https://example.com/redir"></embed>

URL example.com/redir将自动将用户（HTTP 302）重定向到example.com/hi.SWF？message=message+Value

在下面的示例中，如何使用javascript或flash获取消息值

<!DOCTYPE html>
<html>
    <body>
         <embed id="foo" src="https://example.com/redir"></embed>
         <!-- Remember that example.com/redir will be automatically redirected to example.com/hi.SWF?message=Message+Value -->

         <!-- The code to get the message value must go here -->

    </body>
</html>

考虑一下：

上述.html托管在cross domain.com，与解决方案中涉及的任何其他文件一样（.swf，.js，.html，.css等）

您无法控制example.com

您无法控制hi.SWF

您可以将标记更改为或

我认为获取重定向swf的url及其参数的最简单方法是使用另一个swf作为当前swf的加载程序，在这里，您可以获取传递给重定向swf的url和参数，然后通过JavaScript将其发送到JavaScript

为此，请看以下示例：

动作脚本：

    // url           : the url of the current swf
    //                 this url is passed by flash vars in the html page
    // default value : http://www.example.com/redirect
var swf_url:String = this.loaderInfo.parameters.url || 'http://www.example.com/redirect',

    // fn            : the name of the js function which will get the url and the message param
    //                 this name is passed by flash vars in the html page
    // default value : console.log
    js_function:String = this.loaderInfo.parameters.fn || 'console.log',

    message:String = 'no message';

var url_request:URLRequest = new URLRequest(swf_url);

var swf_loader:Loader = new Loader();
    swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, on_content_load);
    swf_loader.load(url_request);

function on_content_load(e:Event): void 
{   
    var loader_info:LoaderInfo = LoaderInfo(e.currentTarget);

    // get the message param or use the default message
    message = loader_info.parameters.message || message;

    // if ExternalInterface is available, send data to js
    if(ExternalInterface.available)
    {
        // send the swf url and the message param to the js function
        ExternalInterface.call(js_function, { url: loader_info.url, message: message }); 
    }

    // show the redirected loaded swf
    addChild(swf_loader);
}

Redirect    /redirect   /new.swf?message=a%20message%20here

function get_data_from_flash(data)
{
    console.log('url : ' + data.url);
    // gives :
    //      url : http://www.example.com/new.swf?message=a%20message%20here

    console.log('message : ' + data.message);
    // gives :
    //      message : a message here
}

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="550" height="400">
    <param name="movie" value="loader.swf" />
    <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    <object type="application/x-shockwave-flash" data="loader.swf" width="550" height="400">
        <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    </object>
</object>

HTML端：

    // url           : the url of the current swf
    //                 this url is passed by flash vars in the html page
    // default value : http://www.example.com/redirect
var swf_url:String = this.loaderInfo.parameters.url || 'http://www.example.com/redirect',

    // fn            : the name of the js function which will get the url and the message param
    //                 this name is passed by flash vars in the html page
    // default value : console.log
    js_function:String = this.loaderInfo.parameters.fn || 'console.log',

    message:String = 'no message';

var url_request:URLRequest = new URLRequest(swf_url);

var swf_loader:Loader = new Loader();
    swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, on_content_load);
    swf_loader.load(url_request);

function on_content_load(e:Event): void 
{   
    var loader_info:LoaderInfo = LoaderInfo(e.currentTarget);

    // get the message param or use the default message
    message = loader_info.parameters.message || message;

    // if ExternalInterface is available, send data to js
    if(ExternalInterface.available)
    {
        // send the swf url and the message param to the js function
        ExternalInterface.call(js_function, { url: loader_info.url, message: message }); 
    }

    // show the redirected loaded swf
    addChild(swf_loader);
}

Redirect    /redirect   /new.swf?message=a%20message%20here

function get_data_from_flash(data)
{
    console.log('url : ' + data.url);
    // gives :
    //      url : http://www.example.com/new.swf?message=a%20message%20here

    console.log('message : ' + data.message);
    // gives :
    //      message : a message here
}

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="550" height="400">
    <param name="movie" value="loader.swf" />
    <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    <object type="application/x-shockwave-flash" data="loader.swf" width="550" height="400">
        <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    </object>
</object>

对于本例，假设我们有一个

.htaccess

文件，如下所示：

.htaccess:

    // url           : the url of the current swf
    //                 this url is passed by flash vars in the html page
    // default value : http://www.example.com/redirect
var swf_url:String = this.loaderInfo.parameters.url || 'http://www.example.com/redirect',

    // fn            : the name of the js function which will get the url and the message param
    //                 this name is passed by flash vars in the html page
    // default value : console.log
    js_function:String = this.loaderInfo.parameters.fn || 'console.log',

    message:String = 'no message';

var url_request:URLRequest = new URLRequest(swf_url);

var swf_loader:Loader = new Loader();
    swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, on_content_load);
    swf_loader.load(url_request);

function on_content_load(e:Event): void 
{   
    var loader_info:LoaderInfo = LoaderInfo(e.currentTarget);

    // get the message param or use the default message
    message = loader_info.parameters.message || message;

    // if ExternalInterface is available, send data to js
    if(ExternalInterface.available)
    {
        // send the swf url and the message param to the js function
        ExternalInterface.call(js_function, { url: loader_info.url, message: message }); 
    }

    // show the redirected loaded swf
    addChild(swf_loader);
}

Redirect    /redirect   /new.swf?message=a%20message%20here

function get_data_from_flash(data)
{
    console.log('url : ' + data.url);
    // gives :
    //      url : http://www.example.com/new.swf?message=a%20message%20here

    console.log('message : ' + data.message);
    // gives :
    //      message : a message here
}

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="550" height="400">
    <param name="movie" value="loader.swf" />
    <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    <object type="application/x-shockwave-flash" data="loader.swf" width="550" height="400">
        <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    </object>
</object>

JavaScript:

    // url           : the url of the current swf
    //                 this url is passed by flash vars in the html page
    // default value : http://www.example.com/redirect
var swf_url:String = this.loaderInfo.parameters.url || 'http://www.example.com/redirect',

    // fn            : the name of the js function which will get the url and the message param
    //                 this name is passed by flash vars in the html page
    // default value : console.log
    js_function:String = this.loaderInfo.parameters.fn || 'console.log',

    message:String = 'no message';

var url_request:URLRequest = new URLRequest(swf_url);

var swf_loader:Loader = new Loader();
    swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, on_content_load);
    swf_loader.load(url_request);

function on_content_load(e:Event): void 
{   
    var loader_info:LoaderInfo = LoaderInfo(e.currentTarget);

    // get the message param or use the default message
    message = loader_info.parameters.message || message;

    // if ExternalInterface is available, send data to js
    if(ExternalInterface.available)
    {
        // send the swf url and the message param to the js function
        ExternalInterface.call(js_function, { url: loader_info.url, message: message }); 
    }

    // show the redirected loaded swf
    addChild(swf_loader);
}

Redirect    /redirect   /new.swf?message=a%20message%20here

function get_data_from_flash(data)
{
    console.log('url : ' + data.url);
    // gives :
    //      url : http://www.example.com/new.swf?message=a%20message%20here

    console.log('message : ' + data.message);
    // gives :
    //      message : a message here
}

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="550" height="400">
    <param name="movie" value="loader.swf" />
    <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    <object type="application/x-shockwave-flash" data="loader.swf" width="550" height="400">
        <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    </object>
</object>

HTML:

    // url           : the url of the current swf
    //                 this url is passed by flash vars in the html page
    // default value : http://www.example.com/redirect
var swf_url:String = this.loaderInfo.parameters.url || 'http://www.example.com/redirect',

    // fn            : the name of the js function which will get the url and the message param
    //                 this name is passed by flash vars in the html page
    // default value : console.log
    js_function:String = this.loaderInfo.parameters.fn || 'console.log',

    message:String = 'no message';

var url_request:URLRequest = new URLRequest(swf_url);

var swf_loader:Loader = new Loader();
    swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, on_content_load);
    swf_loader.load(url_request);

function on_content_load(e:Event): void 
{   
    var loader_info:LoaderInfo = LoaderInfo(e.currentTarget);

    // get the message param or use the default message
    message = loader_info.parameters.message || message;

    // if ExternalInterface is available, send data to js
    if(ExternalInterface.available)
    {
        // send the swf url and the message param to the js function
        ExternalInterface.call(js_function, { url: loader_info.url, message: message }); 
    }

    // show the redirected loaded swf
    addChild(swf_loader);
}

Redirect    /redirect   /new.swf?message=a%20message%20here

function get_data_from_flash(data)
{
    console.log('url : ' + data.url);
    // gives :
    //      url : http://www.example.com/new.swf?message=a%20message%20here

    console.log('message : ' + data.message);
    // gives :
    //      message : a message here
}

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="550" height="400">
    <param name="movie" value="loader.swf" />
    <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    <object type="application/x-shockwave-flash" data="loader.swf" width="550" height="400">
        <param name="flashvars" value="url=http://www.example.com/redirect&fn=get_data_from_flash" />
    </object>
</object>

就这些

如果您想了解有关如何使用

ExternalInterface

的更多详细信息，可以查看

希望能有所帮助。

简单回答：

你不能那样做，因为同一原产地的政策。

您的请求中不会包含用户的cookies。

此处是否包含Flash SWF文件？如果没有，那么你不能用Flash做任何事情。@SunilD。对不起，我编辑了这个问题。现在flash的东西是有意义的。我相信现在问题更清楚了。除非我忘记了什么，否则你不能忘记，因为那样会违反相同的域规则。