javascript - Python + Selenium WebDriver，点击提交按钮

Question

我正在开发一个网络抓取工具，我需要点击提交按钮来触发 JavaScript 脚本来加载页面。我无法识别正确的标签并执行 click() 函数。我认为这与 aria-hidden="true" 标签有关。您能告诉我我们如何才能实现这一目标吗？

这是按钮的 page_source 部分:

<div>   
     <button type="button" class="btn btn-primary" onclick="javascript:document.forms[0].submit();">
        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>Search
     </button>
     &nbsp;
</div>

这是我的代码:

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

driver = webdriver.PhantomJS(executable_path='C:/Users/50178/Documents/learn/pracpy/phantomjs-2.1.1-windows/phantomjs-2.1.1-windows/bin/phantomjs.exe')
#driver = webdriver.Chrome(executable_path='C:/Users/50178/Documents/learn/pracpy/ChromeDriver/chromedriver.exe')
driver.get("http://www16.co.hennepin.mn.us/cfrs/search.do")
driver.implicitly_wait(5)
driver.find_element_by_css_selector("input[type='radio']").click()
print(driver.page_source)
print (driver.find_element_by_xpath('.//div[@class="btn btn-primary"]'))
driver.close()

Answer 1

"btn btn-primary"是button的类名，不是div。尝试

//button[@class="btn btn-primary"]

或

//button[.="Search"]