Python Selenium只单击一次链接,再次调用click()返回错误
我是Selenium的新手,刚刚编写了这些代码。我想通过单击右下角的“>”链接来删除表上的数据。第一次点击有效,但下两次不行。我错过了什么?谢谢Python Selenium只单击一次链接,再次调用click()返回错误,python,selenium,screen-scraping,Python,Selenium,Screen Scraping,我是Selenium的新手,刚刚编写了这些代码。我想通过单击右下角的“>”链接来删除表上的数据。第一次点击有效,但下两次不行。我错过了什么?谢谢 # coding: utf-8 from selenium import webdriver from selenium.webdriver.common.by import By browser = webdriver.Firefox() browser.get('http://s.cafef.vn/Lich-su-giao-dich-HSG-1.
# coding: utf-8
from selenium import webdriver
from selenium.webdriver.common.by import By
browser = webdriver.Firefox()
browser.get('http://s.cafef.vn/Lich-su-giao-dich-HSG-1.chn')
next_page_link = browser.find_element_by_partial_link_text('>')
next_page_link.click()
next_page_link = browser.find_element_by_partial_link_text('>')
next_page_link.click()
next_page_link = browser.find_element_by_partial_link_text('>')
next_page_link.click()
这是个例外
Traceback (most recent call last):
File "cafef.py", line 13, in <module>
next_page_link.click()
File "/usr/local/lib/python2.7/dist-packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webelement.py", line 59, in click
self._execute(Command.CLICK_ELEMENT)
File "/usr/local/lib/python2.7/dist-packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webelement.py", line 369, in _execute
return self._parent.execute(command, params)
File "/usr/local/lib/python2.7/dist-packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 164, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python2.7/dist-packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/errorhandler.py", line 164, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.StaleElementReferenceException: Message: u'Element is no longer attached to the DOM' ; Stacktrace:
at fxdriver.cache.getElementAt (resource://fxdriver/modules/web_element_cache.js:7613)
at Utils.getElementAt (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:7210)
at fxdriver.preconditions.visible (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:8223)
at DelayedCommand.prototype.checkPreconditions_ (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10861)
at DelayedCommand.prototype.executeInternal_/h (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10878)
at DelayedCommand.prototype.executeInternal_ (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10883)
at DelayedCommand.prototype.execute/< (file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10825)
回溯(最近一次呼叫最后一次):
文件“cafef.py”,第13行,在
下一页链接。单击()
文件“/usr/local/lib/python2.7/dist packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webelement.py”,第59行,单击
self.\u执行(命令。单击\u元素)
文件“/usr/local/lib/python2.7/dist packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webelement.py”,第369行,在
返回self.\u parent.execute(命令,参数)
文件“/usr/local/lib/python2.7/dist packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/webdriver.py”,执行中第164行
self.error\u handler.check\u响应(响应)
文件“/usr/local/lib/python2.7/dist packages/selenium-2.40.0-py2.7.egg/selenium/webdriver/remote/errorhandler.py”,第164行,在check_响应中
引发异常类(消息、屏幕、堆栈跟踪)
selenium.common.exceptions.StaleElementReferenceException:消息:u'Element不再附加到DOM';堆栈跟踪:
在fxdriver.cache.getElementAt(resource://fxdriver/modules/web_element_cache.js:7613)
at Utils.getElementAt(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:7210)
在fxdriver.premissions.visible(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:8223)
在DelayedCommand.prototype.CheckPremissions\u(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10861)
在DelayedCommand.prototype.executeInternal\uh处(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10878)
在DelayedCommand.prototype.executeInternal\u(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10883)
在DelayedCommand.prototype.execute/<(file:///tmp/tmpIDOSdW/extensions/fxdriver@googlecode.com/components/command_processor.js:10825)
第二个下一页链接。单击()
调用在浏览器加载下一页之前发生。
添加一个包含以下内容的文件:
通常,来自unutbu的anwser就足够了。
我在.net中使用了selenium,而不是python,因此我无法给出python的详细代码,但对于stable,您应该等待3次:
.CafeF\u Paging td span strong的文本是您不包括的页码。
退房
from selenium import webdriver
import selenium.webdriver.support.ui as UI
from selenium.webdriver.common.by import By
import selenium.webdriver.support.expected_conditions as EC
import contextlib
with contextlib.closing(webdriver.Firefox()) as browser:
browser.get('http://s.cafef.vn/Lich-su-giao-dich-HSG-1.chn')
wait = UI.WebDriverWait(browser, 10)
for i in range(3):
next_page_link = wait.until(
EC.element_to_be_clickable((By.PARTIAL_LINK_TEXT, '>')))
next_page_link.click()