在Iframe弹出窗口中获取span的XPath表达式时需要帮助

Maa*_*aal 6 javascript iframe xpath

需要获取iframe内的span的xpath表达式.在Iframe弹出窗口中获取span的XPath表达式时需要帮助.

我可以获得iframe,但在iframe中获取/ html/body没有发生任何帮助将不胜感激

<div class="gwt-PopupPanelGlass" style="position: absolute; left: 0px; top: 0px; visibility: visible; display: block; width: 1680px; height: 222px;"></div>
<div class="gwt-PopupPanel" style="left: 439px; top: 0px; visibility: visible; position: absolute; overflow: visible;">
<div class="popupContent">
<div class="ph-PopupDialog" style="position: relative; width: 800px; height: 220px;">
<div style="position: absolute; z-index: -32767; top: -20ex; width: 10em; height: 10ex;">&nbsp;</div>
<div style="position: absolute; overflow: hidden; left: 0px; top: 0px; right: 0px; bottom: 0px;">
<div style="position: absolute; left: 0px; top: 0px; right: 0px; bottom: 0px;">
<div style="position: absolute; z-index: -32767; top: -20ex; width: 10em; height: 10ex;">&nbsp;</div>
<div style="position: absolute; overflow: hidden; left: 0px; top: 0px; right: 0px; height: 32px;">
<div style="position: absolute; overflow: hidden; left: 0px; top: 32px; right: 0px; bottom: 0px;">
<div class="ph-PopupDialog-content" style="position: absolute; left: 0px; top: 0px; right: 0px; bottom: 0px;">
<div style="position: absolute; z-index: -32767; top: -20ex; width: 10em; height: 10ex;">&nbsp;</div>
<div style="position: absolute; overflow: hidden; left: 5px; top: 5px; right: 5px; bottom: 5px;">
<div style="position: absolute; left: 0px; top: 0px; right: 0px; bottom: 0px;">
<div>
<iframe class="gwt-Frame ph-PaymentFrame" name="paymentFrame" src="javascript:''">
<html>
<head>
<body onload="pageLoaded();">
<div class="ph-View">
<div class="container_24 form-grid">
<div class="container_24 form-grid">
<div class="container_24 form-grid">
<div class="container_24 form-grid">
<div class="container_24 form-grid">
<div class="grid_12">
<div class="ph-ButtonPanel ph-ButtonPanel-undecorated">
<a class="ph-Button ph-Button-button" onclick="submit();return false;" style="float: right; margin-left: 5px;" href="#">
<a class="ph-Button ph-Button-button" onclick="cancel();return false;" style="float: right; margin-left: 5px;" href="#">
<span>Cancel</span>
</a>
</div>
</div>
</div>
</div>
</body>
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`

小智 8

iframe中的元素实际上在另一个页面中.所以你应该首先找到该页面的地址,该地址是iframe的src值的值并加载它然后访问该页面中的元素.


GJ.*_*GJ. 5

您需要将xpath的范围设置为iframe的contentDocument属性:

var iframe = document.getElementsByTagName("iframe")[0];
var theFirstSpan = document.evaluate('//span', iframe.contentDocument,
         null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue
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Dim*_*hev 2

使用

//iframe//span
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这将选择XML 文档中span任何元素的后代的每个元素。iframe