StaleElementReferenceException单击标记

Question

我每天都在使用这个selenium代码来下载一个文件，但有时我会收到过时的引用错误。

我如何确保一旦元素是可选择的，就立即单击它？

try:
    btnMenu = WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.LINK_TEXT, 'TRANSFERÊNCIA')))
    # btnMenu = WebDriverWait(driver, 15).until(EC.presence_of_element_located((By.NAME, 'link2')))
    # WebDriverWait(driver, 10).until(EC.element_to_be_clickable(By.NAME, 'link2'))
    driver.execute_script("arguments[0].click();", btnMenu)
except StaleElementReferenceException as ex:
    print('Elemento obsoleto - botão transferência\n{ex.message}') 
    btnMenu = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.LINK_TEXT, 'TRANSFERÊNCIA')))
    driver.execute_script("arguments[0].click();", btnMenu)
except TimeoutException as ex:
    print(f'Link de transferência não encontrado.\n{ex}')
    driver.quit()

Answer 1

我建议使用带有while块的try-except循环，如下所示：

succeed = False
while !succeed:
    try:
        btnMenu = WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.LINK_TEXT, 'TRANSFERÊNCIA')))
        driver.execute_script("arguments[0].click();", btnMenu)
        succeed = True
    except StaleElementReferenceException as ex:
        print('Elemento obsoleto - botão transferência\n{ex.message}') 
    except TimeoutException as ex:
        print(f'Link de transferência não encontrado.\n{ex}')
        driver.quit()
        succeed = True

我不知道你为什么有except TimeoutException as ex:。可能您可以删除它并只使用以下代码：

succeed = False
while !succeed:
    try:
        btnMenu = WebDriverWait(driver, 5).until(EC.element_to_be_clickable((By.LINK_TEXT, 'TRANSFERÊNCIA')))
        driver.execute_script("arguments[0].click();", btnMenu)
        succeed = True
    except:
        print('Failed clicking the button, going to try again\n{ex.message}') 
driver.quit()

但我不确定。