http://www.facebook.com/sharer.PHP?u=<url>&t=<title>

在Flash中：

import flash.net.navigateToURL;
import flash.net.URLVariables;
import flash.net.URLRequest;
import flash.net.URLRequestMethod;

share_btn.addEventListener(MouseEvent.CLICK,shareClickHandler);

function shareClickHandler(evt:MouseEvent):void
{
    var vaRSShare:URLVariables = new URLVariables();
    vaRSShare.u = 'http://domain.com/pageN.html';
    vaRSShare.t = 'Title Page';

    var urlFacebookShare:URLRequest = new URLRequest('http://www.facebook.com/sharer.PHP');
    urlFacebookShare.data = vaRSShare;
    urlFacebookShare.method = URLRequestMethod.GET;

    navigateToURL(urlFacebookShare,'_blank');
}

为了使用图片,请添加以下元标记：

<Meta name="title" content="my title" />
<Meta name="description" content="my description" />
<link rel="image_src" href="images/thumbnail_image.jpg" />

欲了解更多信息：https://developers.facebook.com/docs/opengraph/