我使用driver.findElement(By.xpath())找不到带有xpath的Web元素;

Question

我试图在页面上找到要点击的链接:

<a id="folder0" class="js-folder icon-wrap icon-wrap_left menu__item__link menu__item__link_act menu__item__link_unread" href="/messages/inbox" rel="history">
    <span class="js-folder-b-unread js-folder-unread menu__item__link__qnt">7</span>
    <i class="js-folder-ico icon icon_left icon_folders icon_inbox_act"></i>
    <span class="menu__item__link__text menu__item__link__text_linear">Input</span>
</a>

Java代码:

driver.findElement(By.xpath(".//*[@id='folder0']/span[2]")).click();

但是驱动程序找不到元素:

 org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"xpath","selector":".//*[@id='folder0']/span[2]"}

Answer 1

谢谢你的所有答案.我找到了解决问题的方法.最后一个命令是与IFrame链接的命令

WebElement editorFrame = driver.findElement(By.cssSelector("#sentmsgcomposeEditor_ifr"));
   driver.switchTo().frame(editorFrame);

   WebElement body1 = driver.findElement(By.tagName("body"));
   body1.sendKeys(Keys.CONTROL + "a"); 

所以我在IFrame实际上是因为它找不到任何元素.我执行了以下命令:

 driver.switchTo().defaultContent();

之后,可以找到定位器.