在 selenium 中定位 WebElements 的子节点 [英] Locating child nodes of WebElements in selenium

问题描述

我正在使用 selenium 来测试我的 Web 应用程序，我可以使用 By.xpath 成功找到标签.但是，有时我需要在该节点中找到子节点.

示例:

<div><跨度/><输入/>

我能做到:

WebElement divA = driver.findElement( By.xpath( "//div[@id='a']" ) )

但现在我需要找到输入，所以我可以这样做:

driver.findElement( By.xpath( "//div[@id='a']//input" ) )

然而，在代码中我只有 divA，不再是它的 xpath...我想做这样的事情:

WebElement input = driver.findElement( divA, By.xpath( "//input" ) );

但是这样的功能并不存在.我可以这样做吗?

顺便说一句:有时我需要找到一个 <div> ，它有一个特定的后代节点.如何在 xpath 中询问包含 和文本 'hello world' 的

"?

解决方案

根据 JavaDocs，你可以这样做:

WebElement input = divA.findElement(By.xpath(".//input"));

<小时><块引用>

如何在 xpath 中询问包含跨度的 div 标签文本'你好世界'"?

WebElement elem = driver.findElement(By.xpath("//div[span[text()='hello world']]"));

XPath 规范是一本令人惊讶的好书.

I am using selenium to test my web application and I can successfully find tags using By.xpath. However now and then I need to find child nodes within that node.

Example:

<div id="a">
    <div>
        <span />
        <input />
    </div>
</div>

I can do:

WebElement divA = driver.findElement( By.xpath( "//div[@id='a']" ) )

But now I need to find the input, so I could do:

driver.findElement( By.xpath( "//div[@id='a']//input" ) )

However, at that point in code I only have divA, not its xpath anymore... I would like to do something like this:

WebElement input = driver.findElement( divA, By.xpath( "//input" ) );

But such a function does not exist. Can I do this anyhow?

BTW: Sometimes I need to find a <div> that has a certain decendent node. How can I ask in xpath for "the <div> that contains a <span> with the text 'hello world'"?

解决方案

According to JavaDocs, you can do this:

WebElement input = divA.findElement(By.xpath(".//input"));

---

How can I ask in xpath for "the div-tag that contains a span with the text 'hello world'"?

WebElement elem = driver.findElement(By.xpath("//div[span[text()='hello world']]"));

The XPath spec is a suprisingly good read on this.

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