使用 firexpath 的 xpath [英] xpath using firexpath
问题描述
我有 firexpath，但它似乎不适用于 xpath.即使是简单的 //div 也不会返回任何结果.即使我单击现有节点，说复制 XPath"，然后将该 XPath 粘贴到过滤器输入框中，它也会显示未找到节点".//*[name()='div'] 确实有效.我是否缺少命名空间或其他东西?下面是根标签的样子(它是一个有效的 XHTML):
I have firexpath, and it doesn't seem to be working with xpath. Even something simple //div returns no results. Even if I click on an existing node, say "copy XPath" and then paste that XPath into filter input box, it says "no nodes found". //*[name()='div'] does work though. Am I missing a namespace or something? Here is what root tag looks like (it's a valid XHTML):
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-us" class="ff ff3">
我没有找到 FireXPath 的支持论坛，所以我把它贴在这里.
I didn't find a support forum for FireXPath, so I'm posting it here.
推荐答案
我没有使用过 firexpath 但它看起来好像是默认的命名空间 xmlns="http://www.w3.org/1999/xhtml" 阻止 xpath 找到 div 作为元素内的 div 元素，该元素无视以该命名空间为前缀的 xmlns.
I have not used firexpath but it looks as though the default namespace xmlns="http://www.w3.org/1999/xhtml" is preventing xpath from finding the div as the div element inside the element which defies xmlns with be prefixed with that namespace.
因此，您需要使用某种方法调用向 firexpath 注册命名空间???那么 //div 应该可以工作或者你的表达式也很好，如果你想在表达式中考虑命名空间，你可以像这样包含对命名空间的检查
You therefore would need to register the namespace with firexpath using some sort of method call??? then //div should work or your expression is fine as well, if you were wanting to consider namespaces in the expression you could include a check for the namespace like so
//*[name()='div' and namespace-uri()='http://www.w3.org/1999/xhtml']
我已经下载了 firexpath，它现在被称为 firepath，它看起来不可能注册命名空间，所以看起来你必须使用 name() 方法
I have downloaded firexpath which now is called firepath and it doesn't look possible to register a namespace so it looks like you will have to the name() method
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