java - 如何使用 selenium webDriver 单击 anchor 标记

Question

我无法单击存在一些可见性问题的按钮。我需要先将鼠标悬停在此处以获取链接，然后我需要单击该链接。

<a tabindex="0" 
   class="cardPreviewLink expand-icon" 
   aria-label="card opens in new tab" 
   target="_blank" 
   id="card-preview-link-19479" 
   href="/card/19479?$filters@$pattern=10532372&amp;type===&amp;dimension=chargeback_id"> 
  <button class="MuiButtonBase-root MuiIconButton-root" tabindex="-1" type="button">
    <span class="MuiIconButton-label">
      <svg class="MuiSvgIcon-root open-icon" 
           focusable="false" 
           viewBox="0 0 24 24" 
           aria-hidden="true" 
           role="presentation">
        <path d="M19 19H5V5h7V3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2v-7h-2v7zM14 3v2h3.59l-9.83 9.83 1.41 1.41L19 6.41V10h2V3h-7z"/>
      </svg>
    </span>
  </button>
</a>

代码试验:

WebDriverWait wait4 = new WebDriverWait(driver, 60);
wait4.until(ExpectedConditions.visibilityOfElementLocated(By.className("cardPreviewLink expand-icon")));
driver.findElement(By.className("cardPreviewLink expand-icon")).click();

错误:

Timeout Exception because of No such Element Exception

Answer 1

所需的元素是动态元素，因此要在该元素上click()，您必须为elementToBeClickable()引发WebDriverWait并且您可以使用以下任一 Locator Strategies :

• css选择器:

  new WebDriverWait(driver, 20).until(ExpectedConditions.elementToBeClickable(By.cssSelector("a.cardPreviewLink.expand-icon > button.MuiButtonBase-root.MuiIconButton-root > span.MuiIconButton-label"))).click();
  

• xpath:

  new WebDriverWait(driver, 20).until(ExpectedConditions.elementToBeClickable(By.xpath("//a[@class='cardPreviewLink expand-icon']/button[@class='MuiButtonBase-root MuiIconButton-root']/span[@class='MuiIconButton-label']"))).click();