问题描述
使用Selenium(通过Python)，我试图找到 http://schwab.com 的登录"按钮一个>.该按钮是BUTTON类型的元素，且id ='loginSubmitButton'.我正在使用以下代码:
Using Selenium (via Python), I am trying to locate the "Login" button of http://schwab.com.The button is an element of type BUTTON and id='loginSubmitButton'.I am using the following code:
from selenium import webdriver
driver = webdriver.Chrome()
driver.maximize_window()
driver.get("http://schwab.com")
driver.implicitly_wait(10)
driver.find_element_by_id("loginSubmitButton")
driver.close()
浏览器正确地打开了页面，并且按钮确实位于此处(使用Chrome开发工具)，但是Selenium无法找到它.
The browser correctly opens the page and the button is verifiably there (using Chrome dev tools), however Selenium fails to locate it.
我已经尝试了此代码的许多变体，包括使用WebDriverWait，但似乎无济于事.
I have tried many variations of this code, including using WebDriverWait, but nothing seems to work.
建议表示赞赏.
推荐答案
由于所需元素位于<iframe>之内，因此必须在该元素上调用click():
As the the desired element is within an <iframe> so to invoke click() on the element you have to:
- 诱导 WebDriverWait 以使所需的框架可用并切换到.
- 诱导 WebDriverWait 以使所需的元素可点击.
-
您可以使用以下定位器策略:
- Induce WebDriverWait for the desired frame to be available and switch to it.
- Induce WebDriverWait for the desired element to be clickable.
You can use either of the following Locator Strategies:
-
使用
CSS_SELECTOR:
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
driver = webdriver.Firefox(executable_path=r'C:\Utility\BrowserDrivers\geckodriver.exe')
driver.get('https://www.schwab.com/')
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe#LoginComponentForm")))
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "span#LoginText"))).click()
使用XPATH:
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
driver = webdriver.Firefox(executable_path=r'C:\Utility\BrowserDrivers\geckodriver.exe')
driver.get('https://www.schwab.com/')
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[@id='LoginComponentForm']")))
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//span[@id='LoginText']"))).click()
此处您可以在在下面的方法中处理#document的方法找到相关的讨论iframe
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