java - WebdriverIO 和 Java - IFrame 中的 org.openqa.selenium.NoSuchElementException

Question

当我尝试获取元素“email”时，遇到异常(org.openqa.selenium.NoSuchElementException)。由于我刚刚开始使用 WebDriver，我可能错过了一些关于这些竞争条件的重要概念。

WebElement login = driver.findElement(By.id("login"));
login.click();
WebElement iFrame = driver.findElement(By.id("iFrame"));
driver.switchTo().frame(iFrame);
WebElement email = driver.findElement(By.id("email"));
email.sendKeys(USERNAME);

我尝试过但没有成功的一些事情:

设置隐式等待:

driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);

创建一个WebDriverWait:

WebDriverWait wait = new WebDriverWait(driver, 10);
WebElement login = driver.findElement(By.id("login"));
login.click();
WebElement iFrame = driver.findElement(By.id("iFrame"));
driver.switchTo().frame(iFrame);
WebElement email = wait.until(presenceOfElementLocated(By.id("email"))); 
// and WebElement email = wait.until(visibilityOf(By.id("email"))); 
email.sendKeys(USERNAME);

创建 FluentWait:

WebElement login = driver.findElement(By.id("login"));
login.click();
WebElement iFrame = driver.findElement(By.id("iFrame"));
driver.switchTo().frame(iFrame);
Wait<WebDriver> wait = new FluentWait<>(driver)
        .withTimeout(Duration.ofSeconds(30))
        .pollingEvery(Duration.ofSeconds(5))
        .ignoring(NoSuchElementException.class);

WebElement email = wait.until(d ->
        d.findElement(By.id("email")));
email.sendKeys(USERNAME);

我设法让它工作的唯一方法是使用旧的且好的 Thread.sleep() (也丑陋)

WebElement login = driver.findElement(By.id("login"));
login.click();
WebElement iFrame = driver.findElement(By.id("iFrame"));
driver.switchTo().frame(iFrame);
try {
    Thread.sleep(5000);
} catch (InterruptedException e) {
    e.printStackTrace();
}
WebElement email = driver.findElement(By.id("email"));
email.sendKeys(USERNAME);

Answer 1

将字符序列发送到电子邮件元素，因为所需元素位于 <iframe> 内所以你必须:

• 引发WebDriverWait以获得所需的frameToBeAvailableAndSwitchToIt() .
• 引发WebDriverWait以获得所需的elementToBeClickable() .

• 您可以使用以下 Locator Strategies

  driver.findElement(By.id("login")).click();
  new WebDriverWait(driver, 10).until(ExpectedConditions.frameToBeAvailableAndSwitchToIt(By.id("iFrame")));
  new WebDriverWait(driver, 20).until(ExpectedConditions.elementToBeClickable(By.id("email"))).sendKeys(USERNAME);
  

Here you can find a relevant discussion on Ways to deal with #document under iframe