使用python，可以得到如下url。

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

driver = webdriver.Firefox()
driver.get("https://google.com")

# do whatever you want to get to the right website

url = driver.current_url
print(url)

# Now you need to save the data

f=open("filename",'a')
f.write(url)
f.close()