根据表头为表数据创建XPATH
根据表头为表数据创建XPATH
提问于 2018-02-02 15:35:41
我有一个类似于下面的表：table with header and data
在某些情况下，可能会缺少某些列，因此我们为获取表数据而创建的XPath将获取不正确的数据。
例如:如果我需要获取总收入，Xpth将是
.//*[@id='sessionForm:dataTable_data']/tr/td[7]/div
但是假设"Total Revenue“字段之前的一列丢失了，那么XPath将更改为.//*[@id='sessionForm:dataTable_data']/tr/td[6]/div，但在我的脚本中，它将为不正确的列提供值。
表格后面的HTML如下所示：
<div class="ui-datatable-scrollable-body" tabindex="-1" style="margin-right: 0px; width: 680px;">
<table role="grid">
<thead class="ui-datatable-scrollable-theadclone" style="height: 0px;">
<tr role="row">
<th id="sessionForm:dataTable:userid_clone" class="ui-state-default ui-sortable-column" style="width:58px" aria-label="User Id: activate to sort column ascending" role="columnheader" tabindex="0" aria-sort="other">
<span class="ui-column-title">User Id</span>
</th>
<th id="sessionForm:dataTable:Enterprisename_clone" class="ui-state-default ui-sortable-column" style="width:70px" aria-label="Enterprise: activate to sort column ascending" role="columnheader" tabindex="0" aria-sort="other">
<span class="ui-column-title">Enterprise</span>
</th>
<th id="sessionForm:dataTable:startTime_clone" class="ui-state-default ui-sortable-column" style="width:56px" aria-label="Start Time: activate to sort column ascending" role="columnheader" tabindex="0" aria-sort="other">
<span class="ui-column-title">Start Time</span>
</th>
<th id="sessionForm:dataTable:endTime_clone" class="ui-state-default ui-sortable-column" style="width:60px" aria-label="End Time: activate to sort column ascending" role="columnheader" tabindex="0" aria-sort="other">
<span class="ui-column-title">End Time</span>
</th>
<th id="sessionForm:dataTable:dynamicColumns:1" class="ui-state-default ui-sortable-column" style="width:80px" aria-label="Sale Amt: activate to sort column ascending" role="columnheader" aria-sort="other">
<span class="ui-column-title">Sale Amt</span>
<span class="ui-sortable-column-icon ui-icon ui-icon-carat-2-n-s"/>
</th>
<th id="sessionForm:dataTable:dynamicColumns:2" class="ui-state-default ui-sortable-column" style="width:80px" aria-label="Session ID: activate to sort column ascending" role="columnheader" aria-sort="other">
<span class="ui-column-title">Session ID</span>
<span class="ui-sortable-column-icon ui-icon ui-icon-carat-2-n-s"/>
</th>
</tr>
</thead>
<tbody id="sessionForm:dataTable_data" class="ui-datatable-data ui-widget-content">
<tr class="ui-widget-content ui-datatable-even" role="row" data-ri="0">
<td role="gridcell">
<span title="test_user@mailinator.com1044">test_user@test.com</span>
</td>
<td role="gridcell">
<span title="test_enterprise">test_enterise</span>
</td>
<td role="gridcell">
<div class="numeric">01/29/2018 16:00:00 </div>
</td>
<td role="gridcell">
<div class="numeric">01/29/2018 21:00:00 </div>
</td>
<td role="gridcell">
<span title="0.0">0.0</span>
</td>
<td role="gridcell">
<span title="41">41</span>
</td>
</tr>
<tr class="ui-widget-content ui-datatable-odd" role="row" data-ri="1">
<td role="gridcell">
<span title="abc_user@mailinator.com2754">abc_user@test.com</span>
</td>
<td role="gridcell">
<span title="abc_enterprise">abc_enterprise</span>
</td>
<td role="gridcell">
<div class="numeric">01/23/2018 14:30:00 </div>
</td>
<td role="gridcell">
<div class="numeric">01/23/2018 15:45:00 </div>
</td>
<td role="gridcell">
<span title="0.0">0.0</span>
</td>
<td role="gridcell">
<span title="40">40</span>
</td>
</tr>这是部分HTML代码，仅供参考。
我需要根据表头为表列创建XPath，即首先读取表头，然后根据表头上的位置获取该列的所有值。
回答 2
Stack Overflow用户
回答已采纳
发布于 2018-02-02 16:04:44
您可以使用类似以下内容：
.//*[@id='sessionForm:dataTable_data']/tr/td[position()=count(//span[@class='ui-column-title' and text()='Total Revenue']/../preceding-sibling::*)+1]/div
在此xpath中，它将获取Total Revenue的列数，然后使用它来获取列值。因此，假设一列在它之前消失了，那么该值将自动减少1。
希望这能有所帮助。
Stack Overflow用户
发布于 2018-02-02 18:29:16
Java示例：
// List of title columns
List<WebElement> columns = driver.findElements(By.xpath(".//span[@class='ui-column-title']"));
int i = 1;
boolean stop = False;
WebElement elem = null;
while(i<columns.size() && !stop){
elem = columns.get(i-1);
// if the elem has the title stop the loop
if (elem.getText().equalsIgnoreCase("Total Revenue")){
stop = True;
}
}
// The i variable has the right position to take the values for the column
List<WebElement> Revenue_rows = driver.findElements(By.xpath('.//td[(position() > (i-1)) AND (position()<= i)]'))页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48577834
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