即使使用时间加载页面，Selenium 也无法找到 xpath

Question

我只想执行一个简单的点击操作。当我启动 webdriver 时，登录页面会出现，我可以通过元素名称找到并传递我的凭据并按 Enter 键，没有任何问题。

import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.firefox.webdriver import WebDriver
from selenium.webdriver.remote.webelement import WebElement

driver = webdriver.Firefox(executable_path=r"C:\arcgispro-py3-clone2\Lib\site-packages\selenium\webdriver\firefox\geckodriver.exe")

driver.get("http://server.domain:9999/landing_logon_page)

print(driver.title) # Title of the page

element_userid = driver.find_element_by_name("userid").send_keys("myusername")
element_pwd = driver.find_element_by_name("pwd").send_keys("mypassword")
element_SignIn = driver.find_element_by_name("Submit").click()
# WORKS FINE UP TO HERE

time.sleep(20)
Element = driver.find_element_by_xpath('//*[@id="SM_PF_WRK_SM_PF_SUBACTION"]').click()

无论我在最后一行使用哪种定位方法都不起作用。这包括元素名称、id、css 选择器和 xpath。

这是 div 中的 HTML，其中包含所需元素的输入类型：

<div id="win1divSM_PF_WRK_SM_PF_SUBACTION">
    <input type="radio" name="SM_PF_WRK_SM_PF_SUBACTION" id="SM_PF_WRK_SM_PF_SUBACTION" class="PSRADIOBUTTON" tabindex="285" value="NEW" checked="checked" onclick="setupTimeout2();addchg_win1(this);submitAction_win1(this.form,this.id);">
    <label for="SM_PF_WRK_SM_PF_SUBACTION" id="SM_PF_WRK_SM_PF_SUBACTION_LBL" class="PSRADIOBUTTON">New Employee</label>
</div>

这是我收到的错误：

Traceback (most recent call last):
  File "<string>", line 22, in <module>
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 394, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 978, in find_element
    'value': value})['value']
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate element: //*[@id="SM_PF_WRK_SM_PF_SUBACTION"]

也试过包含：

driver.find_element_by_xpath('//*[contains(@id,"SM_PF_WRK_SM_PF_SUBACTION") and contains(@class, "PSRADIOBUTTON")]').click()

得到了这个错误：

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 394, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 978, in find_element
    'value': value})['value']
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\arcgispro-py3-clone2\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate element: //*[contains(@id,"SM_PF_WRK_SM_PF_SUBACTION") and contains(@class, "PSRADIOBUTTON")]

关于单击此按钮我需要做什么的任何想法？

Answer 1

您可以使用@class 和@id 的组合...类似于：driver.find_element_by_xpath('//*[contains(@id,"id_value") and contains(@class, "class_value")]').click()

Answer 2

检查那里是否有 iframe。
如果是 - 您必须切换到 iframe 才能访问其中的元素。
并切换到默认内容以访问该 iframe 之外的元素。
请参阅 here 或 here 或任何其他关于此问题的类似帖子。

Answer 3

从发布的内容看来，您的代码应该可以工作，所以这只是为了帮助解决问题。

首先让我们尝试使用预期条件。

import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.firefox.webdriver import WebDriver
from selenium.webdriver.remote.webelement import WebElement

driver = webdriver.Firefox(executable_path=r"C:\arcgispro-py3-clone2\Lib\site-packages\selenium\webdriver\firefox\geckodriver.exe")

driver.get("http://server.domain:9999/landing_logon_page)

print(driver.title) # Title of the page

element_userid = driver.find_element_by_name("userid").send_keys("myusername")
element_pwd = driver.find_element_by_name("pwd").send_keys("mypassword")
element_SignIn = driver.find_element_by_name("Submit").click()
# WORKS FINE UP TO HERE

time.sleep(20)
# Element = driver.find_element_by_xpath('//*[@id="SM_PF_WRK_SM_PF_SUBACTION"]').click()
#########################################################
#         TROUBLESHOOTING
#########################################################
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

element_list = WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.XPATH,"//label[@id='SM_PF_WRK_SM_PF_SUBACTION_LBL']")))
print(len(element_list))
# Expected out put is 1
element_to_click = WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"//label[@id='SM_PF_WRK_SM_PF_SUBACTION_LBL']")))

element_to_click.click()
########################################
# Also try below if above does not work
########################################

element_to_click2 = WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"//label[contains(text(), 'New Employee')]")))
element_to_click2.click()