如何使用Selenium和Python 2.7单击表单中的按钮? [英] How do I click a button in a form using Selenium and Python 2.7?

问题描述

我正在尝试创建一个Python程序，该程序会定期检查网站是否有特定更新.该站点是安全的，需要多次单击才能转到我要监视的页面.不幸的是，我一直试图找出如何单击特定按钮.这是按钮代码:

I am trying to create a Python program that periodically checks a website for a specific update. The site is secured and multiple clicks are required to get to the page that I want to monitor. Unfortunately, I am stuck trying to figure out how to click a specific button. Here is the button code:

<input type="button" class="bluebutton" name="manageAptm" value="Manage Interview Appointment" onclick="javascript:programAction('existingApplication', '0');">

我尝试了多种方法来访问该按钮，并始终收到"selenium.common.exceptions.NoSuchElementException:"错误.访问该按钮的明显方法是XPath，然后使用Chrome X-Path Helper工具获得以下信息:

I have tried numerous ways to access the button and always get "selenium.common.exceptions.NoSuchElementException:" error. The obvious approach to access the button is XPath and using the Chrome X-Path Helper tool, I get the following:

/html/body/form/table[@class='appgridbg mainContent']/tbody/tr/td[2]/div[@class='maincontainer']/div[@class='appcontent'][1]/table[@class='colorgrid']/tbody/tr[@class='gridItem']/td[6]/input[@class='bluebutton']

如果我包括以下内容:

browser.find_element_by_xpath("/html/body/form/table[@class='appgridbg mainContent']/tbody/tr/td[2]/div[@class='maincontainer']/div[@class='appcontent'][1]/table[@class='colorgrid']/tbody/tr[@class='gridItem']/td[6]/input[@class='bluebutton']").submit()

我仍然收到NoSuchElementException错误.

I still get the NoSuchElementException error.

我是硒的新手，所以可能有些明显的东西我很想念；但是，经过大量谷歌搜索之后，我还没有找到明显的解决方案.

I am new to selenium and so there could be something obvious that I am missing; however, after much Googling, I have not found an obvious solution.

另一方面，我也尝试过find_element_by_name('manageAptm')和find_element_by_class_name('bluebutton')并给出相同的错误.

On another note, I have also tried find_element_by_name('manageAptm') and find_element_by_class_name('bluebutton') and both give the same error.

有人可以建议我如何使用硒有效地单击此按钮吗?

Can someone advise on how I can effectively click this button with Selenium?

谢谢！

推荐答案

要遵循您的尝试和@ har07的注释，find_element_by_name('manageAptm')应该可以工作，但是该元素可能无法立即使用，您可能需要等待它:

To follow your attempts and the @har07's comment, the find_element_by_name('manageAptm') should work, but the element might not be immediately available and you may need to wait for it:

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

wait = WebDriverWait(driver, 10)
manageAppointment = wait.until(EC.presence_of_element_located((By.NAME, "manageAptm")))
manageAppointment.click()

此外，检查元素是否在iframe内部.如果是的话，您将需要切换到它的上下文，然后才发出"find"命令:

Also, check if the element is inside an iframe or not. If yes, you would need to switch into the context of it and only then issue the "find" command:

driver.switch_to.frame("frame_name_or_id")
driver.find_element_by_name('manageAptm').click()

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