XPath特定表达式WebDriver错误

Question

我对WebDriver的XPath有一个问题，即使它是正确的，也会返回一个错误表达式。

表达式为：

(*//div[contains(@class, 'myb-SettledBetItem ') or contains(@class, 'myb-OpenBetItem_Collapsed') or contains(@class, 'myb-OpenBetItem ')]//(span[@class='myb-SettledBetParticipant_ParticipantSpan ' or @class='myb-OpenBetParticipant_ParticipantSpan']|div[@class='myb-SettledBetItem_SubHeaderText']))

html是：

<div class="myb-BetItemsContainer_BetItemsContainer ">
<div class="myb-SettledBetItem ">
<div class="myb-SettledBetItemHeader ">
<div class="myb-SettledBetItemHeader_HeaderTextContainer ">
<div class="myb-SettledBetItemHeader_Title ">
<div class="myb-SettledBetItemHeader_Text ">R$0,50 Simples</div>
</div>
<div class="myb-SettledBetItem_SubHeaderText "></div>
</div>
<div class="myb-SettledBetItem_BetStateContainer ">
<div class="myb-SettledBetItem_BetStateLabel ">Retorno Obtido</div>
<div class="myb-SettledBetItem_BetReturnLabel ">R$1,19</div>
</div>
</div>
<div>
<div>
<div class="myb-SettledBetParticipant-FirstOfType myb-SettledBetParticipant myb-SettledBetParticipant_Won ">
<div class="myb-SettledBetParticipant_Header ">
<div class="myb-SettledBetParticipant_HeaderTitle ">
<div class="myb-SettledBetParticipant_HeaderText "><span class="myb-SettledBetParticipant_ParticipantSpan ">Hollyoak Hector (v Courts Ad Darcey) </span>
<div class="myb-HalfAndHalfPill myb-HalfAndHalfPill_Status-1 ">
<div class="myb-HalfAndHalfPill_TextStatus myb-HalfAndHalfPill_TextStatus-1 ">
<div class="myb-HalfAndHalfPill_TextStatusLHS myb-HalfAndHalfPill_TextStatusLHS-1 "></div>
<div class="myb-HalfAndHalfPill_TextStatusRHS myb-HalfAndHalfPill_TextStatusRHS-1 "></div>
</div>
</div>
</div>
</div>
<div class="myb-SettledBetParticipant_HeaderOdds ">2.37</div>
</div>
<div class="myb-SettledBetParticipant_MarketDescription ">Aposta Comparativa</div>
<div class="myb-SettledBetParticipant_FixtureDescription ">8.27 Central Park EVE (Corrida 8)</div>
</div>
</div>
<div class="myb-SettledBetItemFooter ">
<div class="myb-SettledBetItemFooter_BetInformation ">
<div class="myb-SettledBetItemFooter_StakeInformation ">
<div class="myb-SettledBetItemFooter_StakeLabel ">Aposta</div>
<div class="myb-SettledBetItemFooter_StakeTextWrapper "><span class="myb-SettledBetItemFooter_StakeTextCurrency myb-SettledBetItemFooter_StakeTextCurrency-formatted ">R$</span><span class="myb-SettledBetItemFooter_StakeText ">0,50</span></div>
</div>
<div class="myb-SettledBetItemFooter_ReturnInformation ">
<div class="myb-SettledBetItemFooter_ReturnLabel ">Retorno Total</div>
<div class="myb-SettledBetItemFooter_ReturnTextWrapper "><span class="myb-SettledBetItemFooter_ReturnTextCurrency myb-SettledBetItemFooter_ReturnTextCurrency-formatted ">R$</span><span class="myb-SettledBetItemFooter_ReturnText ">1,19</span></div>
</div>
</div>
</div>
</div>
</div>
<div class="myb-SettledBetItem ">
<div class="myb-SettledBetItemHeader ">
<div class="myb-SettledBetItemHeader_HeaderTextContainer ">
<div class="myb-SettledBetItemHeader_Title ">
<div class="myb-SettledBetItemHeader_Text ">R$0,50 Simples</div>
</div>
<div class="myb-SettledBetItem_SubHeaderText "></div>
</div>
<div class="myb-SettledBetItem_BetStateContainer ">
<div class="myb-SettledBetItem_BetStateLabel ">Retorno Obtido</div>
<div class="myb-SettledBetItem_BetReturnLabel ">R$0,77</div>
</div>
</div>
<div>
<div>
<div class="myb-SettledBetParticipant-FirstOfType myb-SettledBetParticipant myb-SettledBetParticipant_Won ">
<div class="myb-SettledBetParticipant_Header ">
<div class="myb-SettledBetParticipant_HeaderTitle ">
<div class="myb-SettledBetParticipant_HeaderText "><span class="myb-SettledBetParticipant_ParticipantSpan ">Trap 8 </span>
<div class="myb-HalfAndHalfPill myb-HalfAndHalfPill_Status-1 ">
<div class="myb-HalfAndHalfPill_TextStatus myb-HalfAndHalfPill_TextStatus-1 ">
<div class="myb-HalfAndHalfPill_TextStatusLHS myb-HalfAndHalfPill_TextStatusLHS-1 "></div>
<div class="myb-HalfAndHalfPill_TextStatusRHS myb-HalfAndHalfPill_TextStatusRHS-1 "></div>
</div>
</div>
</div>
</div>
<div class="myb-SettledBetParticipant_HeaderOdds ">1.53</div>
</div>
<div class="myb-SettledBetParticipant_MarketDescription ">Vencedor e V/C Ao-Vivo</div>
<div class="myb-SettledBetParticipant_FixtureDescription ">Race 15 Palm Beach</div>
</div>
</div>
<div class="myb-SettledBetItemFooter ">
<div class="myb-SettledBetItemFooter_BetInformation ">
<div class="myb-SettledBetItemFooter_StakeInformation ">
<div class="myb-SettledBetItemFooter_StakeLabel ">Aposta</div>
<div class="myb-SettledBetItemFooter_StakeTextWrapper "><span class="myb-SettledBetItemFooter_StakeTextCurrency myb-SettledBetItemFooter_StakeTextCurrency-formatted ">R$</span><span class="myb-SettledBetItemFooter_StakeText ">0,50</span></div>
</div>
<div class="myb-SettledBetItemFooter_ReturnInformation ">
<div class="myb-SettledBetItemFooter_ReturnLabel ">Retorno Total</div>
<div class="myb-SettledBetItemFooter_ReturnTextWrapper "><span class="myb-SettledBetItemFooter_ReturnTextCurrency myb-SettledBetItemFooter_ReturnTextCurrency-formatted ">R$</span><span class="myb-SettledBetItemFooter_ReturnText ">0,77</span></div>
</div>
</div>
</div>
</div>
</div>
</div>

预期结果：

Hollyoak Hector(诉Courts Ad Darcey(

陷阱8

并在现场进行了测试：http://xpather.com/

返回的错误为：

致命错误：未捕获的Facebook\WebDriver\Exception\InvalidSelectorException：无效选择器：由于以下错误，无法找到具有xpath表达式THIS_expression的元素：SyntaxError:无法对"Document"执行"evaluate"：字符串THIS_EXPRESSION不是有效的XPath表达式。。。。在DIR/vender/facebook/webdriver/lib/Exception/WebDriverException.php中，第152行

发生了什么？为什么它不能在WebDriver的Xpath中工作，而在这个网站上工作？这是处理这些数据的最佳方式吗？

Answer 1

您的XPath表达式仅适用于XPath-2.0或更高版本
要使它在XPath-1.0中工作，您必须拆分您尝试使用括号做的事情：

//div[contains(@class, 'myb-SettledBetItem ') or contains(@class, 'myb-OpenBetItem_Collapsed') or contains(@class, 'myb-OpenBetItem ')]//span[@class='myb-SettledBetParticipant_ParticipantSpan ' or @class='myb-OpenBetParticipant_ParticipantSpan'] | //div[contains(@class, 'myb-SettledBetItem ') or contains(@class, 'myb-OpenBetItem_Collapsed') or contains(@class, 'myb-OpenBetItem ')]/div[@class='myb-SettledBetItem_SubHeaderText']

因此，复制表达式的第一部分，然后对两个表达式应用并集。