WebElement getText（）返回空字符串，即使元素可见
[英]WebElement getText() returning empty string even though element is visible
问题描述
我很难检索元素的文本，出于某种原因，WebDriver可以找到该元素，但无法检索该文本，我怀疑是因为由于某种原因，该元素对WebDriver不可见，我会马上解决。
这是HTML的代码段：
<td id="x-auto-4169" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">0</div>
</td>
要达到这个目的的Xpath是
String valueXpath = "((//div[@id=\"QosDashpardPanelBottom\"]//div[@id=\"CollectorQoSPerformanceMetricsgrid\"]//div[contains(@class, \"x-grid3-row x-unselectable-single\")])[" + j + "]//div)[" + i + "]";
WebElement value = driver.findElement(By.xpath(valueXpath));
在表/网格中，“ j”分别是行号，“ i”是列号。 我知道硒可以找到元素，因为我可以
WebElement class = driver.findElement(By.xpath(fullXpath));
String classAttr = arg.getAttribute("class");
然后我回来
x-grid3-cell-inner x-grid3-col-badCalls
但是当我尝试
String cellValue = value.getText();
System.out.println(cellValue);
我得到一个空字符串。 我凝视着我的电脑屏幕，可以看到该值，它是可见的，我知道Selenium可以找到该元素，但是我无法检索该文本。 有趣的是有人建议先单击该值，然后尝试getText（），所以当我尝试单击时，出现异常：
org.openqa.selenium.ElementNotVisibleException: Element is not currently visible and so may not be interacted with
因此，我想知道是否由于文本值不可见而无法检索该文本值？ 但是，如果是这种情况，我可以检索诸如class属性，标签等之类的东西，但不能检索文本值，这似乎很奇怪。
任何建议将不胜感激。
HTML：
<body class=" ext-gecko ext-windows" onload="processLoaders();">
<script type="text/javascript">
<div id="topNavDiv" style="height: 90px">
<div id="bodyContentOuter" style="width: 1280px; height: 587px;">
<div id="bodyContentInner">
<script src="RLT/RLT.nocache.js" language="javascript" type="text/javascript">
<script defer="defer">
<script language="javascript" type="text/javascript">
<div id="rtcpMain" class=" x-component x-border-layout-ct" style="width: 1280px; height: 587px;">
<div id="rtcpMainWest" class=" x-panel x-component x-border-panel" style="left: 5px; top: 5px; width: 225px;">
<div id="x-auto-2" class=" x-tab-panel x-component x-border-panel" tabindex="0" hidefocus="true" style="left: 235px; top: 5px; width: 1040px;">
<div class="x-tab-panel-header x-unselectable" style="width: 1038px;" unselectable="on">
<div class="tone-rtcp-tabbed-content-panel" style="width: 1040px; height: 550px;">
<div id="x-auto-10" class=" x-component" style="overflow: auto; width: 1040px; height: 550px;">
<div id="QosDashboardPanel0" class=" x-panel x-component" style="width: 1040px;">
<div id="x-auto-13" class=" x-small-editor x-panel-header x-component x-hide-display" role="presentation">
<div id="rtcpDPBWrap" class="x-panel-bwrap" role="presentation" style="overflow: visible;">
<div class="x-panel-tbar x-panel-tbar-noheader" role="presentation" style="width: 1040px;">
<div id="rtcpDPBody" class="x-panel-body x-panel-body-noheader x-border-layout-ct" role="presentation" style="width: 1038px; height: 700px;">
<div id="QosDashboardPanelTop" class=" x-component x-border-panel x-border-layout-ct" style="left: 0px; top: 0px; width: 1038px; height: 400px;">
<div id="QosDashpardPanelBottom" class=" x-component x-border-panel x-border-layout-ct" style="left: 1px; top: 401px; width: 1036px; height: 298px;">
<div id="QosDashpardPanel_pqosChartsLC" class=" x-component x-border-panel x-border-layout-ct x-hide-display" style="left: 0px; top: 0px; width: 1036px; height: 400px;">
<div id="QosDashpardPanel_metricsTablesLC" class=" x-component x-border-panel x-border-layout-ct" style="left: 1px; top: 1px; width: 1034px; height: 296px;">
<div id="CollectorMetrics_toneletWrapper" class=" x-panel x-component x-border-panel" style="left: 1px; top: 1px; width: 330px;">
<div id="x-auto-99" class=" x-small-editor x-panel-header x-component x-hide-display" role="presentation">
<div class="x-panel-bwrap" role="presentation">
<div class="x-panel-body x-panel-body-noheader" role="presentation" style="width: 328px; height: 292px;">
<div id="CollectorMetrics" class=" x-panel x-component" style="width: 328px;">
<div id="x-auto-109" class=" x-small-editor x-panel-header x-component x-unselectable" role="presentation" unselectable="on">
<div class="x-panel-bwrap" role="presentation">
<div class="x-panel-body" role="presentation" style="width: 326px; height: 265px;">
<div id="CollectorQoSPerformanceMetricsgrid" class=" x-grid-panel x-component" style="position: relative; width: 326px; height: 265px;" tabindex="0" hidefocus="true" unselectable="">
<div class="x-grid3" role="presentation" style="width: 326px; height: 265px;">
<div class="x-grid3-viewport" role="presentation">
<div class="x-grid3-header" role="presentation">
<div class="x-grid3-scroller" role="presentation" style="width: 326px; height: 243px;">
<div class="x-grid3-body" role="presentation">
<div id="CollectorQoSPerformanceMetricsgrid_x-auto-633" class="x-grid3-row x-unselectable-single x-grid3-row-selected x-grid3-highlightrow " style="width:510px;">
<table class="x-grid3-row-table" cellspacing="0" cellpadding="0" border="0" style="width:510px;" role="presentation">
<tbody role="presentation">
<tr role="presentation">
<td id="x-auto-634" class="x-grid3-col x-grid3-cell x-grid3-td-name x-grid-cell-first " style="width:148px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-name" unselectable="on">
<u>Lync</u>
</div>
</td>
<td id="x-auto-635" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">36</div>
</td>
<td id="x-auto-636" class="x-grid3-col x-grid3-cell x-grid3-td-totalCalls " style="width:58px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-totalCalls" unselectable="on">120</div>
</td>
<td id="x-auto-637" class="x-grid3-col x-grid3-cell x-grid3-td-avgLatency " style="width:73px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgLatency" unselectable="on">223</div>
</td>
<td id="x-auto-638" class="x-grid3-col x-grid3-cell x-grid3-td-avgLoss " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgLoss" unselectable="on">0.80</div>
</td>
<td id="x-auto-639" class="x-grid3-col x-grid3-cell x-grid3-td-avgJitter " style="width:58px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgJitter" unselectable="on">29</div>
</td>
<td id="x-auto-640" class="x-grid3-col x-grid3-cell x-grid3-td-avgMOS x-grid3-cell-last " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgMOS" unselectable="on">3.86</div>
</td>
</tr>
</tbody>
</table>
</div>
<div id="CollectorQoSPerformanceMetricsgrid_x-auto-641" class="x-grid3-row x-unselectable-single " style="width:510px;">
<table class="x-grid3-row-table" cellspacing="0" cellpadding="0" border="0" style="width:510px;" role="presentation">
<tbody role="presentation">
<tr role="presentation">
<td id="x-auto-642" class="x-grid3-col x-grid3-cell x-grid3-td-name x-grid-cell-first " style="width:148px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-name" unselectable="on">
<u>CUCM-Publisher</u>
</div>
</td>
<td id="x-auto-643" class="x-grid3-col x-grid3-cell x-grid3-td-badCalls " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-badCalls" unselectable="on">3</div>
</td>
<td id="x-auto-644" class="x-grid3-col x-grid3-cell x-grid3-td-totalCalls " style="width:58px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-totalCalls" unselectable="on">52</div>
</td>
<td id="x-auto-645" class="x-grid3-col x-grid3-cell x-grid3-td-avgLatency " style="width:73px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgLatency" unselectable="on">190</div>
</td>
<td id="x-auto-646" class="x-grid3-col x-grid3-cell x-grid3-td-avgLoss " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgLoss" unselectable="on">0.79</div>
</td>
<td id="x-auto-647" class="x-grid3-col x-grid3-cell x-grid3-td-avgJitter " style="width:58px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgJitter" unselectable="on">31</div>
</td>
<td id="x-auto-648" class="x-grid3-col x-grid3-cell x-grid3-td-avgMOS x-grid3-cell-last " style="width:53px;" role="gridcell">
<div class="x-grid3-cell-inner x-grid3-col-avgMOS" unselectable="on">3.98</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
1 个解决方案
解决方案1
1 已采纳 2013-02-28 21:33:06
经过大量（大量）的故障排除后，事实证明我在Xpath上犯了一个小错误。 从我的HTML
<div id="QosDashboardPanel0" ...
我没有考虑多个选项卡。 在我的AUT中，我正在打开一个新标签页，而不是一个新的浏览器标签页，而是一个应用程序本身中的标签页，除了上面的代码段更改为以下内容之外，整个Hmtl都将保持不变
<div id="QosDashboardPanel1" ...
我以为ID不会改变，这是一个很好的教训！ 这就是为什么我遇到“无法单击不可见元素”的原因，该元素实际上在那里，但是隐藏在我的活动选项卡后面。
解决方案虽然不多，但我希望如果有人遇到类似情况，至少可以使他们指向正确的方向或使铃声响起。
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