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public class Sele
{
private IWebDriver driver;
private StringBuilder verificationErrors;
private string baseURL;
private bool acceptNextAlert = true;
public Sele()
{
driver = new FirefoxDriver();
baseURL = "https://www.youtube.com/";
verificationErrors = new StringBuilder();
}
internal void LikeYoutubeVidWithAcc(string username, string password, string url)
{
driver.Navigate().GoToUrl(baseURL + "/");
driver.FindElement(By.XPath("(//button[@type='button'])[2]")).Click();
driver.FindElement(By.Id("Email")).Clear();
driver.FindElement(By.Id("Email")).SendKeys("UserName");
driver.FindElement(By.Id("next")).Click();
driver.FindElement(By.Id("Passwd")).Clear();
driver.FindElement(By.Id("Passwd")).SendKeys("Password");
driver.FindElement(By.Id("signIn")).Click();
driver.Navigate().GoToUrl(url);
driver.FindElement(By.XPath("(//button[@type='button'])[25]")).Click();
}
}
我無法登錄到使用硒的youtube，由於某些原因，它無法在頁面中找到密碼元素。Selenium找不到元素，存在於頁面
錯誤發生在這一行：
driver.FindElement(By.Id("Passwd")).Clear();
錯誤消息：
An unhandled exception of type 'OpenQA.Selenium.NoSuchElementException' occurred in WebDriver.dll
Additional information: Unable to locate element: {"method":"id","selector":"Passwd"}
我知道在頁面上存在的元素，但硒找不到它。
發生錯誤時頁源：
<div class="card signin-card pre-shift no-name shift-form">
<div id="cc_iframe_parent"><iframe id="youtube" src="https://accounts.youtube.com/accounts/CheckConnection?pmpo=https%3A%2F%2Faccounts.google.com&v=-951713550&timestamp=1469398858532" style="visibility: hidden; width: 1px; height: 1px; position: absolute; top: -100px;"></iframe></div>
<div class="circle-mask" style="background-image: none;">
<canvas id="canvas" class="circle" width="96" height="96"></canvas>
</div>
<form novalidate="" method="post" action="https://accounts.google.com/signin/challenge/sl/password" id="gaia_loginform">
<input name="Page" value="PasswordSeparationSignIn" type="hidden">
<input name="GALX" value="bX35kb1ARtQ" type="hidden">
<input name="gxf" value="AFoagUWY2FAFLKhmD2_-vufme-BJ1jfACg:1469398858433" type="hidden">
<input name="continue" value="https://www.youtube.com/signin?next=%2F&hl=en&feature=sign_in_button&app=desktop&action_handle_signin=true" type="hidden">
<input name="service" value="youtube" type="hidden">
<input name="hl" value="en" type="hidden">
<input id="profile-information" name="ProfileInformation" value="APMTqulOYcx8i4BIKa7QX8vzLf8nHVle5wmAmPaLqZqa7bjp6poGeUD2zvzYvR46xap0wdwr2kQaxUuteML1f-hTwb_VW4ZDLaD0cYYzVup4THWBRGWMWv0" type="hidden">
<input id="_utf8" name="_utf8" value="☃" type="hidden">
<input name="bgresponse" id="bgresponse" value="!DwylDC1CEBfic73NLmFEPmLuo0jLmEwCAAAAH1IAAAAFCgASXF5p4wpYu2Whl5kDy5GtZSOFmQEOdst3NYj0yd4fKBLZxl94_2g92h7yeFimnFaHcZosa1A6tveg3lkaz-HEnxsgWWDRAptp3hXbMHf10f_l5URE4mup4YdMKniavQDRHw1mYbNpaTFcVbTQhb2Fq8zAY89pRskujAVj_FVIMin3uw8U3Ncz0sjSkkSBbSi7TneLgUGXSI-GHNUS6uVJGKfqXUCSMkdDA2d71bq-oANdlKwxKOyCAAIkcNAwwuROjGY1wiWaMRofROyHO3PfRvpdwtKP0MfCUCvFU88cdyXKHt-xyJO76CR96U3E5loZGOFscMs8BCy2KpyjeyE6yGHVcSAMFI9NgQfT0Gv5E4687eD__44iyMRuyd4xUYcetZAL" type="hidden">
<input id="pstMsg" name="pstMsg" value="1" type="hidden">
<input id="dnConn" name="dnConn" value="" type="hidden">
<input id="checkConnection" name="checkConnection" value="youtube:254:1" type="hidden">
<input id="checkedDomains" name="checkedDomains" value="youtube" type="hidden">
<div class="form-panel first valid" id="gaia_firstform">
<div style="transition-delay: 0ms;" class="slide-out hide-form">
<div class="input-wrapper focused">
<div id="identifier-shown"></div>
<span role="alert" class="error-msg" id="errormsg_0_Email"></span>
</div>
<div style="display: none" id="identifier-captcha">
<input name="identifiertoken" id="identifier-token" value="" type="hidden">
<input name="identifiertoken_audio" id="identifier-token-audio" type="hidden">
<div class="audio-box">
<div id="playIdentifierAudio"></div>
</div>
<div id="captcha-box" class="captcha-box">
<div id="captcha-img" class="captcha-img" data-alt-text="Visual verification"></div>
<span class="captcha-msg">
Letters are not case-sensitive
</span>
</div>
<label for="identifier-captcha-input" class="hidden-label"></label>
<input id="identifier-captcha-input" name="identifier-captcha-input" class="captcha" placeholder="Enter the letters above" title="Type the characters you see or numbers you hear" type="text">
</div>
<input id="next" name="signIn" class="rc-button rc-button-submit" value="Next" type="submit">
<a class="need-help" href="https://accounts.google.com/signin/recovery?continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26hl%3Den%26feature%3Dsign_in_button%26app%3Ddesktop%26action_handle_signin%3Dtrue&service=youtube&ignoreShadow=0&hl=en">
Need help?
</a>
</div>
</div>
<a href="https://accounts.google.com/ServiceLogin?continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26hl%3Den%26feature%3Dsign_in_button%26app%3Ddesktop%26action_handle_signin%3Dtrue&service=youtube&hl=en" tabindex="-1">
<img id="back-arrow" class="back-arrow shift-form" aria-label="Back" tabindex="0" alt="Back" src="https://www.gstatic.com/images/icons/material/system/1x/arrow_back_grey600_24dp.png">
</a>
<div class="form-panel second">
<div style="transition-delay: 100ms;" class="slide-in">
<div>
<p style="display: none;" id="profile-name"></p>
<span id="email-display">[email protected]</span>
</div>
<div>
<div id="password-shown"><div>
<input name="Email" id="Email-hidden" spellcheck="false" class="hidden" value="" readonly="" autocomplete="off" type="email">
<label class="hidden-label" for="Passwd">Password</label>
<input id="Passwd" name="Passwd" placeholder="Password" class="" type="password">
</div></div>
</div>
<input id="signIn" name="signIn" class="rc-button rc-button-submit" value="Sign in" type="submit">
<label class="remember">
<input id="PersistentCookie" name="PersistentCookie" value="yes" checked="checked" type="checkbox">
<span>
Stay signed in
</span>
<div class="bubble-wrap" role="tooltip">
<div class="bubble-pointer"></div>
<div class="bubble">
For your convenience, keep this checked. On shared devices, additional precautions are recommended.
<a href="https://support.google.com/accounts/?p=securesignin&hl=en" target="_blank">Learn more</a>
</div>
</div>
</label>
<input name="rmShown" value="1" type="hidden">
<a id="link-forgot-passwd" class="need-help" href="https://accounts.google.com/signin/recovery?continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26hl%3Den%26feature%3Dsign_in_button%26app%3Ddesktop%26action_handle_signin%3Dtrue&service=youtube&checkedDomains=youtube&checkConnection=youtube%3A254%3A1&pstMsg=1&Email=wageeh14032%40gmail.com&ignoreShadow=0&hl=en">
Forgot password?
</a>
</div>
</div>
<span id="inge" style="display: none" role="alert" class="error-msg">
Sorry, Google doesn't recognize that email. <a href="https://accounts.google.com/SignUpWithoutGmail?service=youtube&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26hl%3Den%26feature%3Dsign_in_button%26app%3Ddesktop%26action_handle_signin%3Dtrue&hl=en">Create an account</a> using that address?
</span>
<span id="timeoutError" style="display: none" role="alert" class="error-msg">
Something went wrong. Check your connection and try again.
</span>
</form>
</div>
嘗試使用'WebDriverWait'或使用隱式超時。 –
你基本上需要等待點擊下一步，然後再輸入密碼。沒有等待，WebDriver正在嘗試查找新頁面實際上尚未加載的元素。使用明確的Thread.Sleep或WebDriverWait，直到元素出現。 – kurakura88