Python3.x 如何使用Selenium从网站下拉菜单中获取值列表

发布于06月22日

我正在try 从名为State的下拉列表中获取所有州的名称.

然而，问题是，我试图生成的列表并不返回下拉列表中的姓名，而是得到一个空值列表.它确实正确地获得了下拉列表中的元素数量，但元素的值为空.

我做错了什么？如何修改我的代码以获得所需的结果？

我目前使用的是Selify，以下是我的代码:

from selenium import webdriver
from selenium.webdriver.support.ui import Select
from selenium.webdriver.common.by import By
driver = webdriver.Chrome()
url = "https://vahan.parivahan.gov.in/vahan4dashboard/vahan/view/reportview.xhtml"
driver.get(url)
dropdown_element = driver.find_element(By.ID,"j_idt31_input")
dropdown = Select(dropdown_element)
option_names = [option.text for option in dropdown.options]
print(len(option_names))
print(option_names)
driver.quit()

推荐答案

唯一需要更改的是，为了从Select下的option个标记中获取文本，您应该使用方法.get_attribute('innerHTML')而不是.text.

以下是完整的解决方案:

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

driver = Chrome()
url = "https://vahan.parivahan.gov.in/vahan4dashboard/vahan/view/reportview.xhtml"
driver.get(url)
dropdown_element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, "j_idt31_input")))
dropdown = Select(dropdown_element)
option_names = [option.get_attribute('innerHTML') for option in dropdown.options]
print(len(option_names))
print(option_names)

输出:

35
['All Vahan4 Running States (34/36)', 'Andaman &amp; Nicobar Island(8)', 'Andhra Pradesh(80)', 'Arunachal Pradesh(26)', 'Assam(36)', 'Bihar(49)', 'Chhattisgarh(30)', 'Chandigarh(1)', 'UT of DNH and DD(3)', 'Delhi(23)', 'Goa(13)', 'Gujarat(37)', 'Himachal Pradesh(113)', 'Haryana(179)', 'Jharkhand(30)', 'Jammu and Kashmir(21)', 'Karnataka(68)', 'Kerala(87)', 'Ladakh(3)', 'Maharashtra(53)', 'Meghalaya(13)', 'Manipur(12)', 'Madhya Pradesh(52)', 'Mizoram(10)', 'Nagaland(9)', 'Odisha(39)', 'Punjab(93)', 'Puducherry(8)', 'Rajasthan(142)', 'Sikkim(8)', 'Tamil Nadu(146)', 'Tripura(9)', 'Uttarakhand(21)', 'Uttar Pradesh(78)', 'West Bengal(56)']