我正在尝试使用jquery提取iframe中的视频链接。我一直得到一个空的结果。
这是我的代码：
<html>
<head></head>
<body>
<iframe id="video" src="//content.jwplatform.com/players/Jd4BqNM0-xkVaWyDw.html" width="500" height="500" frameborder="0" scrolling="auto" allowfullscreen style="position:absolute;"></iframe>
<script type="text/javascript" src="js/jQuery.js"></script>
<script>
alert($('#video').contents().find("meta[property='og:video']").attr('content'));
</script>
</body>
</html>
这样尝试：https://jsfiddle.net/NwrtE/62/
$(document).ready(function () {
$.ajax({
type: 'GET',
url: $("iframe#video").attr("src"),
dataType: 'html',
success: function(data) {
//cross platform xml object creation from w3schools
try //Internet Explorer
{
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false";
xmlDoc.loadXML(data);
}
catch(e)
{
try // Firefox, Mozilla, Opera, etc.
{
parser=new DOMParser();
xmlDoc=parser.parseFromString(data,"text/xml");
}
catch(e)
{
alert(e.message);
return;
}
}
var metas = xmlDoc.getElementsByTagName("meta");
for (var i = 0; i < metas.length; i++) {
if (metas[i].getAttribute("property") == 'og:video') {
alert(metas[i].getAttribute("content"));
}
}
//adjust above line appropriately
}
});
});