在Webdriver 2 Java中定位元素的XPath相关问题

Question

   <dl class="cN-featDetails">
        <dt class="propertytype">Property type</dt>
        <!-- line 3 --> <dd id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_ddPropertyType" class="propertytype type-house" title="Property type: House">House</dd>
       <!-- line 3a --> <!-- or  class="propertytype type-townhouse"--->
        .......
<div class="main-wrap">
    <div class="s-prodDetails">
        <a id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_hypMainThumb" class="photo contain" href="/Property/For-Sale/House/LA/St Gabriel/?adid=2009938763">img id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_imgMainThumb" title="44 Crown Street, St Gabriel" src="http://images.abc.com/img/2012814/2778/2009938763_1_PM.JPG?mod=121010-210000" alt="Main photo of 44 Crown Street, St Gabriel - More Details" style="border-width:0px;" /></a>
        <div class="description">
             <h4><span id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_lblPrice">Offers Over $900,000 </span></h4>
             <h5>SOLD BY WAISE YUSOFZAI</h5><p>CHARACTER FAMILY HOME... Filled with warmth and charm, is a very well maintained family home in a quiet level street. Be...</p>
    </div>                                                                                                                                                                                                                                                                                                                        
    <a id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_hypMoreDetails" class="button" href="/Property/For-Sale/House/LA/St Gabriel/?adid=2009938763">More Details</a>
    <dl id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_dlAgent" class="agent">
        <!-- line 19 --> <dt>Advertiser</dt>
        <!-- line 20 --> <dd class="contain">                                       
        <!-- line 20a --> <!-- or class="" -->
            <img id="ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_imgAgencyLogo" title="Carmen Jones Realty" src="http://images.abc.com/img/Agencys/2778/searchlogo_2778.GIF" style="border-width:0px;" />                                                                                                                                                                                                                                                     
        </dd>
    </dl>
</div>

WebElement resultsDiv = driver.findElement(By.xpath("/html/body/form/div[3]/div[2]/div[1]/h1/em"));
// If results have been returned, the results are displayed in a drop down.
if (resultsDiv.isDisplayed()) {
    break;
}

(c)在按标记名搜索元素时，是否可以使用XPath语法。例如driver.findElement（by.tagname（“/div[@class='report']/result”））；

(d)是否可以在XPath搜索中使用regex，如driver.findelement（“//div[@class='main-wrap']/dl[@class='agent']/dd[@class=''或@class='contain']”），以搜索第20-20a行？

（e）如何引用紧随其后的节点？例如假设当前节点是

Answer 1

考虑到Zarkonnen给出的答案，我要补充(a)点

 public boolean isElementPresent(By selector)
       {
           return driver.findElements(selector).size()>0;
       }

此方法用于验证页面上是否存在元素。

您还可以涉及可以与isElement is present配对工作的isDisplayed（）方法：

driver.findElement(By locator).isDisplayed()

String cssMoreDetails = "a[id='ctl00_ctl00_Content_Content_SrchResLst_rptResult_ctl04_lstTemplate_hypMoreDetails']";
//and you simply call the described above method
isElementPresent(By.cssSelector(cssMoreDetails));
//if you found xPath then it be
isElementPresent(By.xpath("//*..."));