如何从标题中的元标记正确引用微数据项? [英] How to correctly reference Microdata item from meta tag in header?
问题描述
<!DOCTYPE html>
<html itemscope itemtype="http://schema.org/WebSite">
<head>
<meta itemprop="creator" itemscope itemref="mdFoo">
</head>
<body>
<div id="mdFoo" itemscope itemtype="http://schema.org/LocalBusiness">
<meta itemprop="name" content="Foo comp">
<meta itemprop="telephone" content="0">
<meta itemprop="legalName" content="Foo comp Ltd">
<meta itemprop="url" content="http://www.foo.com">
<meta itemprop="email" content="info@foo.com">
<div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
<meta itemprop="streetAddress" content="mystreet">
<meta itemprop="postalCode" content="1233">
<meta itemprop="addressLocality" content="London">
<meta itemprop="addressCountry" content="UK">
</div>
</div>
</body>
</html>
( https://google.com/webmasters/markup-tester/ ):网站不是有效类型。
when validating with Google ( https://google.com/webmasters/markup-tester/ ): "WebSite is not a valid type."
使用 https://validator.nu/ 告诉我元元素缺少必需的属性内容。
Using https://validator.nu/ gives me "Element meta is missing required attribute content".
关于如何解决此问题的任何建议?
Any suggestions on how to fix this?
推荐答案
你必须在要添加属性的 itemscope
上指定 itemref
(即 html
元素在你的情况下)。具有相应 id
的元素必须得到 itemprop
。
You have to specify the itemref
on the itemscope
to which you want to add properties (i.e., the html
element in your case). And the element with the corresponding id
would have to get the itemprop
.
但是,在您的情况下,您不需要 meta
元素,并且您不需要使用 itemref
:
However, in your case you don’t need the meta
element, and you don’t need to use itemref
:
<!DOCTYPE html>
<html itemscope itemtype="http://schema.org/WebSite">
<head>
<title>…</title>
</head>
<body>
<div itemprop="creator" itemscope itemtype="http://schema.org/LocalBusiness">
</div>
</body>
</html>
但是假设你使用另一个 itemscope
(例如,对于正文
上的 WebPage
项目,在这种情况下你需要使用 itemref
:
But let’s say you use another itemscope
(e.g., for a WebPage
item) on the body
, in which case you’d need to use itemref
:
<!DOCTYPE html>
<html itemscope itemtype="http://schema.org/WebSite" itemref="mdFoo">
<head>
<title>…</title>
</head>
<body itemscope itemtype="http://schema.org/WebPage">
<div itemprop="creator" itemscope itemtype="http://schema.org/LocalBusiness" id="mdFoo">
</div>
</body>
</html>
现在创建者
属性将应用于两个项目( WebSite
感谢 itemref
和 WebPage
,因为这是个孩子。)
Now the creator
property will be applied to both items (WebSite
thanks to itemref
, and WebPage
because it’s a child).
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