如果元素不存在，Selenium 将忽略

Question

我的 selenium 有以下代码，我需要点击轮播图标并一张一张地获取所有图像，但有时轮播没有超过一张图像，因此箭头图标不存在并且可以点击。

 new WebDriverWait(driver, 40).until(ExpectedConditions.elementToBeClickable(By.cssSelector(".arrow-icon "))).click();

如何处理元素不可点击的异常？？

Answer 1

两种修复方法

使用 findElements 如果找到 return 一个 list of web element 否则 list 的 size 将是 0

 try {
     if (driver.findElements(By.cssSelector(".arrow-icon ")).size() > 0 ) {
         System.out.println("Size is > 0 so there must be at least one web element, do some interaction below like click etc");
         new WebDriverWait(driver, 40).until(ExpectedConditions.elementToBeClickable(By.cssSelector(".arrow-icon "))).click();
     }
     else {
         System.out.println("Size is 0, so web element must not be present, do something here that would make it available");
     }
 }
 catch (Exception e) {
     // TODO: handle exception
 }

直接使用里面有风险的代码try

 try {
     new WebDriverWait(driver, 40).until(ExpectedConditions.elementToBeClickable(By.cssSelector(".arrow-icon "))).click();
 }
 catch (Exception e) {
     // TODO: handle exception
 }

如果元素不存在，Selenium 将忽略

Selenium ignore if element not present

selenium

selenium-webdriver

css-selectors