Selenium中的try catch块中的带有isDisplayed（）方法的

Question

我想检查阴性情况。上面的boolean元素未显示，但我必须打印true和false，但它没有显示此类元素异常，请帮助。

try{

    boolean k= driver.findElement(By.xpath("xpath_of_element")).isDisplayed();

    if(!k==true)

    {

             System.out.println("true12"); 

    }

}catch (NoSuchElementException e) {

    System.out.println(e);

}

Answer 1

元素有两个不同的阶段，如下所示：HTML DOM中存在的元素元素可见，即显示在DOM树中正如你所看到的NoSuchElementException异常基本上表示该元素不存在的内视口，并在所有可能的条件下isDisplayed()方法将返回错误。因此，要验证这两个条件，可以使用以下解决方案：try{    if(driver.findElement(By.xpath("xpath_of_the_desired_element")).isDisplayed())        System.out.println("Element is present and displayed");    else        System.out.println("Element is present but not displayed"); }catch (NoSuchElementException e) {    System.out.println("Element is not present, hence not displayed as well");}

Answer 2

  if (driver.findElements(xpath_of_element).size() != 0) return true;           return false;

Answer 3

在检查元素的显示状态之前，应该使用以下代码验证给定的xpath是否存在至少一个或多个元素。List<WebElement> targetElement =&nbsp; driver.findElements(By.xpath("xpath_your_expected_element"));&nbsp; &nbsp; try {&nbsp; &nbsp; &nbsp; &nbsp; if(targetElement>=1) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(targetElement.isDisplayed()) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; System.out.println("Element is present");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; System.out.println("Element is found, but hidden on the page");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; System.out.println("Element not found on the page");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; }catch (NoSuchElementException e) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; System.out.println("Exception in finding the element:" + e.getMessage());&nbsp; &nbsp; &nbsp; &nbsp; }