Python：Phantomjs 找不到 chrome webdriver 工作正常的元素

Posted 2023-02-23

【中文标题】Python：Phantomjs 找不到 chrome webdriver 工作正常的元素

【英文标题】：Python: Phantomjs cannot find element where chrome webdriver works fine

【发布时间】：2021-11-05 21:22:38

【问题描述】：

我正在尝试从网页下载 CSV。当我单击页面中的图像时，下载开始。当我尝试使用ChromeWebDriver 这样做时，一切正常，但我需要使用PhantomJS，并且由于某种原因它无法找到该元素。 查找它，我发现有时改变它找到元素的方式就足够了，不幸的是，文本、img 和访问该元素的类在页面中多次出现reapeated。 有人可以帮我吗？ 这是我的编码：

from selenium import webdriver
import time
    
PATH='vvv' 
prefs = 'download.default_directory' : 'vvv'
driver = webdriver.PhantomJS(PATH,desired_capabilities=prefs)
driver.get('https://infostat-ivass.bancaditalia.it/RIGAInquiry-public/ng/#/area-download')
driver.implicitly_wait(15)
target = driver.find_element_by_xpath("/html/body/inquiry-root/div/inquiry-area-download/div[2]/inquiry-grid/ag-grid-angular/div/div[1]/div/div[3]/div[2]/div/div/div[2]/div[5]/inquiry-pdf-csv/div/img")
target.click()
time.sleep(3)
driver.close()

这是错误信息：

Traceback (most recent call last):
  File "ffff.py", line 18, in <module>
    target = driver.find_element_by_xpath("/html/body/inquiry-root/div/inquiry-area-download/div[2]/inquiry-grid/ag-grid-angular/div/div[1]/div/div[3]/div[2]/div/div/div[2]/div[5]/inquiry-pdf-csv/div/img")
  File "fff\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 394, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "ffff\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 976, in find_element
    return self.execute(Command.FIND_ELEMENT, 
  File "ffff\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "fffff\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: "errorMessage":"Unable to find element with xpath '/html/body/inquiry-root/div/inquiry-area-download/div[2]/inquiry-grid/ag-grid-angular/div/div[1]/div/div[3]/div[2]/div/div/div[2]/div[5]/inquiry-pdf-csv/div/img'","request":"headers":"Accept":"application/json","Accept-Encoding":"identity","Content-Length":"244","Content-Type":"application/json;charset=UTF-8","Host":"127.0.0.1:62209","User-Agent":"selenium/3.141.0 (python windows)","httpVersion":"1.1","method":"POST","post":"\"using\": \"xpath\", \"value\": \"/html/body/inquiry-root/div/inquiry-area-download/div[2]/inquiry-grid/ag-grid-angular/div/div[1]/div/div[3]/div[2]/div/div/div[2]/div[5]/inquiry-pdf-csv/div/img\", \"sessionId\": \"9dbc06c0-113f-11ec-a5dd-dfc6f1996a7b\"","url":"/element","urlParsed":"anchor":"","query":"","file":"element","directory":"/","path":"/element","relative":"/element","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/element","queryKey":,"chunks":["element"],"urlOriginal":"/session/9dbc06c0-113f-11ec-a5dd-dfc6f1996a7b/element"
Screenshot: available via screen

【参考方案1】：

不确定确切的问题是什么，但您的 xpath 看起来像 brittle。

试试这个而不是：

//div[contains(text(),'Lista eventi')]//following-sibling::div[4]//descendant::div

对于任何特定的Descrizione，您也必须在此处进行更改，contains(text(),'Lista eventi')