题前话(Pre-words)
希望使用Selenium 2.0的人看到这篇文章能够收藏此文,以后遇到该问题,再也不用花费多余的时间进行research了!本文就是对网上所有千奇百怪各种各样的search结果所做的最好总结。
问题概述(Question)
IE11不支持Selenium 2.0,在什么情况下不支持呢?比如:获取通过WebDriver获取页面上的元素时,你经常会捕获到这样的异常:
OpenQA.Selenium.NoSuchWindowException: Unable to find element on closed window
at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse) in c:\Projects\webdriver\dotnet\src\webdriver\Remote\RemoteWebDriver.cs:line 1139
at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters) in c:\Projects\webdriver\dotnet\src\webdriver\Remote\RemoteWebDriver.cs:line 923
at OpenQA.Selenium.Remote.RemoteWebDriver.FindElement(String mechanism, String value) in c:\Projects\webdriver\dotnet\src\webdriver\Remote\RemoteWebDriver.cs:line 954
at SharePoint_Automation.mainForm.waitUntilPageLoaded(IWebDriver iw, String eleID) in C:\Users\Administrator\documents\visual studio 2015\Projects\SharePoint Automation\SharePoint Automation\Form1.cs:line 116
上面这段异常的重点在于:
OpenQA.Selenium.NoSuchWindowException: Unable to find element on closed window
解决方案(Solution)
经过不屑的努力,最终让我找到了这一问题的解决方案如下(蓝色字体为针对64bit计算机的最终解决手段):
For IE 11 only, you will need to set a registry entry on the target computer so that the driver can maintain a connection to the instance of Internet Explorer it creates. (这段告诉你需要修改注册表。)
For 32-bit Windows installations, the key you must examine in the registry editor is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BFCACHE. (32bit Windows看这里。)
For 64-bit Windows installations, the key is HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BFCACHE. Please note that the FEATURE_BFCACHE subkey may or may not be present, and should be created if it is not present. Important: Inside this key, create a DWORD value named iexplore.exe with the value of 0.(64bit Windows看这里。)
翻译过来的意思即,修改你的注册表(Run->regedit->Enter),路径如下:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BFCACHE
如果FeatureControl下没有FEATURE_BFCACHE,就以FEATURE_BFCACHE为名new一个key!并在其下创建一个DWORD,取名为:iexplore.exe,value为0。
修改完你的注册表后,重启你的计算机。之后以管理员权限运行Visual Studio,打开你的项目,运行,你会发现,问题解决了。
Congratulations!这几个小时没有白费,终于让我找到了解决方案!网上千奇百怪的说法很多,但是没有一个好使的!
希望看到这篇文章的人能够收藏此文,以后遇到了这个问题,再也不用花费多余的时间进行research了!
感谢以下两篇文章:
Selenium - NoSuchWindowException in IE 11