我有一个奇怪的案例,硒铬驱动程序 getText()
方法 (java) 为某些元素返回一个空字符串,即使它为其他具有相同元素的元素返回一个非空字符串xpath
.这是页面的一小部分.
I have a curious case where the selenium chrome driver getText()
method (java) returns an empty string for some elements, even though it returns a non-empty string for other elements with the same xpath
. Here is a bit of the page.
<div __gwt_cell="cell-gwt-uid-223" style="outline-style:none;">
<div>Text_1</div>
<div>Text_2</div>
<div>Text_3</div>
<div>Text_4</div>
<div>Text_5</div>
<div>Text_6</div>
</div>
对于每个内部标签,我可以获得 getTagName()
、getLocation()
、isEnabled()
的有效返回值,和 isDisplayed()
.但是,getText() 会为某些 div 返回一个空字符串.
for each of the inner tags, I can get valid return values for getTagName()
, getLocation()
, isEnabled()
, and isDisplayed()
. However, getText() returns an empty string for some of the divs.
此外,我注意到如果我使用 mac chrome 驱动程序,它始终是 getText()
返回空字符串的Text_5".如果我使用 windows chrome 驱动程序,它始终是 getText()
返回空字符串的Text_2".如果我使用 firefox 驱动程序,getText()
从所有 div 中返回预期的文本.
Further, I notice that if I use the mac chrome driver, it is consistently the ‘Text_5’ for which getText()
returns an empty string. If I use the windows chrome driver, it is , it is consistently the ‘Text_2’ for which getText()
returns an empty string. If I use the firefox driver, getText()
returns the expected text from all the divs.
有其他人遇到过这种困难吗?
Has anyone else had this difficulty?
在我的代码中,我使用了类似的东西……
In my code, I use something like this…
ArrayList<WebElement> list = (ArrayList<WebElement>) driver.findElements(By.xpath("my xPath here"));
for (WebElement e: list) System.out.println(e.getText());
如下所示,这是我正在使用的实际 xPath
.上面的页面片段处理最后两个 div.
As suggested below, here is the actual xPath
I am using. The page snippet above deals with the last two divs.
//*[@class='gwt-DialogBox']//tr[contains(@class,'data-grid-table-row')]//td[contains(@class,'lms-assignment-selection-wizard-cell')]/div/div
更新: textContent
属性是更好的选择,并且在大多数浏览器中都受支持.这篇博文详细解释了这些差异:innerText vs.文本内容
Update: The textContent
attribute is a better option and supported across the majority of browsers. The differences are explained in detail at this blog post: innerText vs. textContent
作为替代方案,innerText
属性将返回存在于 DOM 中的元素的文本内容.
As an alternative, the innerText
attribute will return the text content of an element which exists in the DOM.
element.getAttribute("innerText")
isDisplayed()
方法有时会在元素没有真正隐藏而是在视口之外时绊倒;getText()
为此类元素返回一个空字符串.
The isDisplayed()
method can sometimes trip over when the element is not really hidden but outside the viewport; getText()
returns an empty string for such an element.
您也可以通过使用 javascript 滚动到它来将元素带入视口,如下所示:
You can also bring the element into the viewport by scrolling to it using javascript, as follows:
((JavaScriptExecutor)driver).executeScript("arguments[0].scrollIntoView(true);", element);
然后 getText()
应该返回正确的值.
and then getText()
should return the correct value.
isDisplayed()
方法的详细信息可以在这个 SO 问题中找到:
Details on the isDisplayed()
method can be found in this SO question:
Selenium WebDriver 的 isDisplayed() 方法是如何工作的
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