selenium切换标签页解决get超时问题的完整代码

从 gif 直观地感受一下效果

我有大量 url 需要访问，但是有些 url 会超时

为了避免超时，设置driver.set_page_load_timeout(3)限时3秒，一旦超时就会产生 TimeoutException

而且超时后标签页就卡柱了，只能通过 driver.close()关闭

如果你只有一个标签页，关闭就直接退出了，还得重启

自然想到先保留一个备用的标签，原标签超时需要关闭的时候就切换过来，然后再关闭，并打开新标签，保证任何时候都有两个标签页可用！！

def visit(urls, timeout=3):
 driver.implicitly_wait(timeout) # 操作、获取元素时的隐式等待时间
 driver.set_page_load_timeout(timeout) # 页面加载超时等待时间
 
 main_win = driver.current_window_handle
 
 for url in urls:
  all_win = driver.window_handles
  try:
   if len(all_win) == 1:
    driver.execute_script('window.open();')
   driver.get(url)
   # 页面处理
   pass
   
  except Exception:
   for win in all_win:
    if main_win != win:
     driver.close() # 关闭卡住的标签
     driver.switch_to.window(win) # 切换到备用标签
     main_win = win # 切换到备用标签
     break

完整代码

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.chrome.options import Options
import time
import requests
import zipfile
import os

def un_zip(file_name, to_dir='./'):
 """unzip zip file"""
 zip_file = zipfile.ZipFile(file_name)
 if os.path.isdir(to_dir):
  pass
 else:
  os.mkdir(to_dir)
 for names in zip_file.namelist():
  zip_file.extract(names, to_dir)
 zip_file.close()

 
def download_driver(to_dir='./', version=''):
 print('install chrome-driver first')
 url = 'http://npm.taobao.org/mirrors/chromedriver/LATEST_RELEASE'
 if len(version)>0:
  url = 'http://npm.taobao.org/mirrors/chromedriver/LATEST_RELEASE_'+version
  
 version = requests.get(url).content.decode('utf8')
 driver_file = 'http://npm.taobao.org/mirrors/chromedriver/' + version + '/chromedriver_win32.zip'
 r = requests.get(driver_file)
 download_zip = "chromedriver_win32.zip"
 with open(download_zip, "wb") as code:
  code.write(r.content)
 un_zip(download_zip, to_dir)
 os.remove(download_zip)


try:
 driver = webdriver.Chrome()
except Exception as e:
 download_driver(to_dir='./', version='76')
 driver = webdriver.Chrome()

with open("url.txt", 'r') as file:
 urls = [ line.strip('\n') for line in file.readlines()]

visit(urls)

for i in driver.window_handles:
 driver.switch_to.window(i)
 driver.close()

总结

到此这篇关于selenium切换标签页解决get超时问题的文章就介绍到这了,更多相关selenium切换标签页解决get超时内容请搜索三水点靠木以前的文章或继续浏览下面的相关文章希望大家以后多多支持三水点靠木！