如何使用 chromedriver Selenium 和 Python 从临时警报中获取文本？

Question

我正在编写一个程序，使用 chromedriver 自动在我的图书馆预订书桌。我正在遍历所有座位，寻找尚未预订的座位，然后使用

driver.find_element(By.XPATH, xpath).click()

关于预订座位的开始和结束时间。单击后，可能会弹出不同的警报，确认预订或指出问题。这些警报会在几秒钟后消失。我正在尝试使用弹出窗口的文本来验证预订是否成功。

到目前为止，我试过这个：

try:
    WebDriverWait(driver, 10).until(EC.alert_is_present)
    alert = driver.switch_to.alert
    text = alert.text
    if "some Text" in text:
        print("Booking successful")
    elif "some other text" in text:
        print("booking not successful")
except:
    print("no alert")

但是，警报没有被识别，我总是得到“没有警报”。

警报是这样的：

<div data-notify="container" class="col-xs-11 col-sm-4 alert alert-success animated fadeInDown" role="alert" data-notify-position="top-center" style="display: inline-block; margin: 0px auto; position: fixed; transition: all 0.5s ease-in-out 0s; z-index: 5000; top: 20px; left: 0px; right: 0px;">
    <button type="button" aria-hidden="true" class="close" data-notify="dismiss" style="position: absolute; right: 10px; top: 5px; z-index: 5002;"> × </button>
    <span data-notify="icon"> </span>
    <span data-notify="title"></span>
    <span data-notify="message"> Booking successful. </span>
    <a href="#" target="_blank" data-notify="url"> </a>
</div>

Answer 1

looks like an due to the presence of classnames like alert, alert-success, etc. But it's not an actual

要打印文本 预订成功。 来自警报您可以使用以下任一方法 :

使用css_selector和get_attribute("innerHTML"):

print(driver.find_element(By.CSS_SELECTOR, "div[class*='alert'][data-notify='container'] span[data-notify='message']").get_attribute("innerHTML"))

使用 xpath 和 text 属性：

print(driver.find_element(By.XPATH, "//div[contains(@class, 'alert') and @data-notify='container']//span[@data-notify='message']").text)

理想情况下你需要诱导 for the and you can use either of the following :

使用 CSS_SELECTOR 和 text 属性：

print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, "div[class*='alert'][data-notify='container'] span[data-notify='message']"))).text)

使用 XPATH 和 get_attribute("innerHTML"):

print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//div[contains(@class, 'alert') and @data-notify='container']//span[@data-notify='message']"))).get_attribute("innerHTML"))

注意：您必须添加以下导入：

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

You can find a relevant discussion in

参考资料

Link 到有用的文档：

get_attribute()方法Gets the given attribute or property of the element.
text属性returnsThe text of the element.
Difference between text and innerHTML using Selenium

如何使用 chromedriver Selenium 和 Python 从临时警报中获取文本？

How can I get the text from an temporary alert using chromedriver Selenium and Python?

python

selenium

webdriverwait

参考资料