Selenium ChromeDriver:增加获取锚元素值的时间



这实际上是上一个问题的延续,但由于问题很长,并且已经给出了赏金的答案,即使我把它加在了文末,恐怕也不会得到任何关注。 所以,经理们 - 我希望你能决定给这个问题适当发布的最佳决定 - 在这里或仍然在上一个问题中。

这一次,我在锚元素上循环的时间越来越多。 也就是说,每次调用 func(( 都需要更多时间。 循环只有 5 次迭代。

void func(WebElement anchorsElement){
List<WebElement> anchors = anchorsElement.findElements(By.tagName("a"));
for (WebElement a : anchors) {
if (a.getAttribute("class").indexOf("a") > 0)
values.add("A");
else if (a.getAttribute("class").indexOf("b") > 0)
values.add("B");
else if (a.getAttribute("class").indexOf("c") > 0)
values.add("C");
}
}

这一次,我对文本不感兴趣,但我需要获取类名。这就是为什么我无法使用上一个问题给我的解决方案。

以下是锚点元素的示例:

<div class="meetings-8 ">
<a class="Call-bg Call-s glib-tvene-dW1eVj25 glib-thepart-WdKOwxDM-Wtn9Stg0 glib-partnames-alal;Ashkelon" title="[b]Next meeting:[/b]
alal - Ashkelon
13.05.2018">&nbsp;</a>
<a class="Call-bg a glib-tvene-j1TJiPdn glib-thepart-Wtn9Stg0-2XrRecc3 glib-partnames-Ashkelon;kdkdkdkd" title="[b]991818&amp;nbsp;[/b](Ashkelon - kdkdkdkd)
09.05.2018">&nbsp;</a>
<a class="Call-bg b glib-tvene-lhJEIDIa glib-thepart-Wtn9Stg0-xxxpBZl2 glib-partnames-Ashkelon;ieieie" title="[b]920032&amp;nbsp;[/b](Ashkelon - ieieie)
06.05.2018">&nbsp;</a>
<a class="Call-bg a glib-tvene-IBZf2hYI glib-thepart-Cxq57r8g-Wtn9Stg0 glib-partnames-west-ham;Ashkelon" title="[b]882772&amp;nbsp;[/b](mcmcmcmc - Ashkelon)
29.04.2018">&nbsp;</a>
<a class="Call-bg a glib-tvene-0U3juSVT glib-thepart-Wtn9Stg0-K6xezbY7 glib-partnames-Ashkelon;kKkssks" title="[b]001991&amp;nbsp;[/b](Ashkelon - kKkssks)
22.04.2018">&nbsp;</a>
<a class="Call-bg Call-bg-last a glib-tvene-ddkDE7Ld glib-thepart-UDg08Ohm-Wtn9Stg0 glib-partnames-kokok;Ashkelon" title="[b]722726&amp;nbsp;[/b](kokok - Ashkelon)
14.04.2018">&nbsp;</a>
</div>

你能帮忙吗?

就像你之前的问题一样,你可以在网页上执行JavaScript,以减少通过网络进行的调用:

var parent = arguments[0];
// ^ JavaScript is executed as a function call.
//   We need to get the parent element passed as an argument.
Array.from(parent.getElementsByTagName('a'))
//         ^ Get all the "a" tags in the parent
// ^ and convert the HTMLCollection to an Array so we can use reduce
.reduce(
// ^ Reduce will call the following callback on each element with an "accumulated" value (your result) and the current element of the array. The first value of the accumulator is the initial value we provide as the second argument
(acc, anchor) => {
if (anchor.classList.contains("a")) {
//        ^ The classList.contains method will check if the anchor has the class "a" applied.
acc.push("A");
// ^ Add "A" to the accumulator
}
if (anchor.classList.contains("b")) { acc.push("B"); }
if (anchor.classList.contains("c")) { acc.push("C"); }
return acc;
// ^ Return the accumulated value for the next iteration
},
[],
// ^ Initial value of the accumulator
);

简化一下,JavaScript 是:

Array.from(arguments[0].getElementsByTagName('a'))
.reduce((acc, { classList }) => {
classList.contains("a") && acc.push("A");
classList.contains("b") && acc.push("B");
classList.contains("c") && acc.push("C");
return acc;
}, []);

您可以像上一个问题一样将其包装在电话中:

public ArrayList<?> func(WebElement element)
{
final String JS_TRANSFORM_ANCHOR_CLASSES_TO_VALUES = 
"return Array.from(arguments[0].getElementsByTagName('a'))n" +
"  .reduce((acc, { classList }) => {n"
"    classList.contains("a") && acc.push("A");n"
"    classList.contains("b") && acc.push("B");n"
"    classList.contains("c") && acc.push("C");n"
"    return acc;n"
"  }, []);n"
WebDriver driver = ((RemoteWebElement)table).getWrappedDriver();
Object result = ((JavascriptExecutor)driver).executeScript(JS_TRANSFORM_ANCHOR_CLASSES_TO_VALUES, element);
return (ArrayList<?>)result;
}

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