我想知道如果其中一个属性已知,但路径未知,是否可以对WebElement的XPath进行反向工程。例如,假设某个WebElement的XPath是(@id,' vi_main_img_fs_thImg')] / img,但这是未知的。但我知道,当调用WebElement.getAttribute(" src")时,此WebElement将返回http://myimage.com/72hjf89(即唯一值) - 是否可以将信息用于"反向工程& #34;原始的XPath值?也许使用正则表达式或其他东西?
注意:.getAttribute(" src")只是一个例子,我想无论使用什么属性,只要该值在页面上出现一次,任何方法都可以工作。
有什么想法吗?
更新
为了更详细地说明我试图实现的目标,我将在下面复制HTML代码。
我正在查看的页面是:http://www.ebay.com/itm/111488868372
页面上的HTML是:
<document>
<html lang="en" xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml" webdriver="true">
<head>
<body class=" vi-contv2 lhdr-ie- vi-hd-ops " style="background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAKCAYAAAB10jRKAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAADBJREFUeNpEyqERADAIBMGbbwSH+qhA/6URXMyqBUhFBLIP6ip0ezk2zExqC58nwACVZwX67tO41gAAAABJRU5ErkJggg=="), url("http://ir.ebaystatic.com/pictures/aw/pics/cmp/ds3/imgbg.jpg"); background-repeat: repeat-x, repeat; background-position: 0px 30px, 0px 0px;">
<div id="gh-gb" tabindex="-1"/>
<!-- Default filmstrip js used with main image -->
<!-- adding filmstrip js used in main pic and with images carousel -->
<div id="Head"/>
<div id="Body" class=" sz940 " itemtype="http://schema.org/Product" itemscope="itemscope">
<div id="TopPanelDF">
<div id="CenterPanelDF">
<div id="CenterPanel" class=" ebaylocale_en_US ebay_longlngsite ">
<style> /* PicturePanel */ #PicturePanel div.img { border:1px solid #ccc; background-color:white; } /* BuyBox */ .actPanel { border-top:1px solid #ccc; border-left:1px solid #ccc; border-right:1px solid #ccc; } .watchListCmp { border-bottom:1px solid #ccc; border-left:1px solid #ccc; border-right:1px solid #ccc; } </style>
<h3 class="vi-inheritstyl">
<div id="vi_sme_prmts_bnr_cntr1" class="vi-sme-ss-v1">
<!-- Placement 100005 -->
<!-- Placement 100011 && 100012 -->
<div id="CenterPanelInternal" class="">
<div id="PicturePanel" class="pp-c">
<h3 class="g-hdn">Picture Information</h3>
<div class="pp-ic pp-ic300">
<div class="l-shad lftd img img300">
<table class="img img300">
<tbody>
<tr>
<td class="img img300">
<div id="test">
<script type="text/javascript">var sPT = new Date().getTime(),picTimer,picTimer1,picTimer2;</script>
<a id="linkMainImg" style="display: block; cursor: default; text-decoration: none;" href="javascript:;">
<div id="mainImgHldr" class="" title="Journeys-Edge-Deluxe-Manicure-Set-with-Deluxe-Carrying-Case" style="width: 300px; background-image: none; cursor: pointer;">
<!-- <span id="mainImgHldr" style="display: inline-block;"> -->
<img id="icThrImg" class="img img300 vi-hide-mImgThr" alt="Image is loading" imgsel="0" src="http://ir.ebaystatic.com/pictures/aw/pics/globalAssets/imgLoading_30x30.gif" style="display:none;"/>
<img id="icImg" class="img img300" alt="Journeys-Edge-Deluxe-Manicure-Set-with-Deluxe-Carrying-Case" clk="0" onload="picTimer=new Date().getTime();" style="" src="http://i.ebayimg.com/images/g/eHAAAOSwLzdWS4C8/s-l300.jpg" itemprop="image" mskuskip="false"/>
<!-- </span> -->
</div>
</a>
&#34; src&#34;值为:http://i.ebayimg.com/images/g/eHAAAOSwLzdWS4C8/s-l300.jpg(这是唯一已知的值)
我试图用这种方法获得的值(ID)是:
.//* [@ id =&#39; PicturePanel&#39;] / div [1] / div [1] / table / tbody / tr / td / a / div / img [2](这是XPath到元素)
答案 0 :(得分:0)
您可以使用不同的XPATH。
id(通常)是唯一的,因此使用id属性查找元素更有意义。
更新: 您可以使用如下所示的XPATH检索ID:
//img[@src = "http://i.ebayimg.com/images/g/eHAAAOSwLzdWS4C8/s-l300.jpg"]/string(@id)
如果结果有多个元素,您将得到一个序列。