记一次selenium + Chrom 无法捕获的异常 报错 selenium.common.exceptions.TimeoutException: Message: timeout

qq_41928442 于 2020-07-14 11:02:08 发布 10564

Traceback (most recent call last):
  File "C:/Users/Administrator/Desktop/WenShuSpider_v1/DetailCrawl/ChromeProxyDetail_4.py", line 86, in get_detail
    self.driver.get(url)
  File "C:\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 333, in get
    self.execute(Command.GET, {'url': url})
  File "C:\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\Python\Python37\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.TimeoutException: Message: timeout
  (Session info: chrome=73.0.3683.103)
  (Driver info: chromedriver=70.0.3538.97 (d035916fe243477005bc95fe2a5778b8f20b6ae1),platform=Windows NT 10.0.17134 x86_64)

抓取某网站的时候，由于网站经常会响应比较慢，或者还没加载完全就返回空白页，导致程序经常检测不到元素卡死，返回

selenium.common.exceptions.TimeoutException: Message: timeout

通过在 try ... except 后面添加 finally: 当try和except没有完成时让页面刷新程序重新调用（刷新页面或许有用）

    def get_detail(self, url):
        msgtimeout = 1
            print('访问网址：{}'.format(url))
            self.driver.get(url)
            myxpath = '//div[@class="PDF_pox"]//*[text()]'
            locator = (By.XPATH, myxpath)
            self.wait.until(EC.presence_of_element_located(locator))
            time.sleep(0.25)
            html = self.driver.page_source
            msgtimeout = 0
            return html
        except Exception as e:
            print('获取详情页失败：{}'.format(e))
            # 清除 cookie
            self.driver.delete_all_cookies()
            print('清除cookie 重新访问 {}'.format(url))
            msgtimeout = 0
            return self.get_detail(url)
        finally:
            if msgtimeout:
                print('wo 来处理timeout异常')
                return self.get_detail(url)

记一次selenium + Chrom 无法捕获的异常 报错 selenium.common.exceptions.TimeoutException: Message: timeout Traceback (most recent call last): File "C:/Users/Administrator/Desktop/WenShuSpider_v1/DetailCrawl/ChromeProxyDetail_4.py", line 86, in get_detail self.driver.get(url) File "C:\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver. 比如我们有大量ip，去访问某个页面，但我们并不知道ip的稳定性，如果一个ip 异常 不能使用，可能会导致整个代码停掉，后面 无法 测试。 这时候就要用 selenium 自带的 异常 来解决： # -*-encoding: utf-8-*...