从标签python的onclick属性获取URL

Question

我正在尝试使用 selenium python 访问标签的 onclick 属性中存在的 URL。它存在于 javascript 函数中。我已经尝试了各种技术来做到这一点，但我还没有找到解决方案。我尝试使用 execute_script 方法执行单击功能。我也尝试过 get_attribute 来获取 onclick 函数，但它没有返回。我想访问 openPopUpFullScreen 函数中的 url

这是html：

<td class="tdAction">

<div class="formResponseBtn icon-only">

<a href="#fh" onclick="javascript: openPopUpFullScreen('/esop/toolkit/negotiation/rfq/publicRfqSummaryReport.do?rfqId=rfq_229969', '');" class="openNewPage" title="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions">

<img src="/esop_custom/images/buttons/print_button.png" title="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions" alt="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions"><img src="/esop_custom/images/buttons/openNewWindow_button.png" title="(Opens in new window)" alt="(Opens in new window)">

</a>

</div>

</td>

这是python代码：

url=browser.find_element_by_xpath("//img[@title='Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions']").click()

print(browser.current_url)

#it returns the previous page I am at.

这是另一个：

id=browser.find_element_by_css_selector(".openNewPage").get_attribute("onclick")

print(id)

#it returns none

我需要 openPopUpFullScreen 函数中存在的 URL，但我无法弄清楚完成此操作的正确解决方案是什么。

更新：我也尝试使用 beautifulsoup 来提取 onclick 函数，但它似乎没有出现：

这是我的代码：

content = browser.page_source.encode('utf-8').strip()

soup = BeautifulSoup(content,"html.parser")

res = soup.find("a",{"class":"openNewPage"})

print(res)

#it returns the complete tag but it does not contain onclick attribute

#i tried using this

res = soup.find("a",{"class":"openNewPage"})[onclick]

#it returns an error NameError: name 'onclick' is not defined

Answer 1

以下from bs4 import BeautifulSouphtml = '''<td class="tdAction"><div class="formResponseBtn icon-only"><a href="#fh" onclick="javascript: openPopUpFullScreen('/esop/toolkit/negotiation/rfq/publicRfqSummaryReport.do?rfqId=rfq_229969', '');" class="openNewPage" title="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions"><img src="/esop_custom/images/buttons/print_button.png" title="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions" alt="Open a new window to view > View or download a Summary of this PQQ/ITT which includes details of the PQQ/ITT settings, format and questions"><img src="/esop_custom/images/buttons/openNewWindow_button.png" title="(Opens in new window)" alt="(Opens in new window)"></a></div></td>'''soup = BeautifulSoup(html, features="lxml")a = soup.find('a')onclick = a.attrs['onclick']left = onclick.find("'")right = onclick.find("'",left+1)print('URL is: {}'.format(onclick[left+1:right]))输出URL is: /esop/toolkit/negotiation/rfq/publicRfqSummaryReport.do?rfqId=rfq_229969

Answer 2

对于 get_attribute：我认为您在没有“onclick”属性的情况下得到了错误的元素。您应该扩展 css 选择器并确认它只会找到一个元素。对于 current_url：您应该先切换到新窗口。尝试使用以下代码：# window_handles[-1] refer to last window created.browser.switch_to.window(browser.window_handles[-1])print(browser.current_url)&nbsp; &nbsp;