我在我的 java 程序中使用 selenium firefox webdriver。我正在尝试在文本框中输入一个字符串并单击提交。但是，文本框嵌套在隐藏元素中，因此我无法使用driver.findElement id、xpath 或 css 访问它。（但是，它在网页上可见）。我明白了NoSuchElementException
这是网页的html：
<div id="mainContent" style="overflow:hidden;">
<!-- content left here -->
<div id="contentLeft">
<script type="text/javascript" src="/enterprisesolutions/staticcontent/includes/scripts/QuickTask.js"/>
<script type="text/javascript" src="/enterprisesolutions/Includes/Javascript/date-picker.js"/>
<div id="quickTask">
<h2 class="boxContentHead">
<div id="qtBoxContent" class="boxContent quickTaskBack">
<!-- Accounts and Maintenance -->
<div id="qt_accounts_and_maintenance" class="qtStack" style="display:block">
<!-- Orders -->
<div id="qt_orders" class="qtStack" style="display:block">
<!-- Invoice -->
<div id="qt_invoices" class="qtStack" style="display:block">
<div class="qtIcon invoices"/>
<div class="qtContent">
<div class="qtTitle">Invoices</div>
<div class="qtForm">
<div class="qtLabel qtLabelInvoices">
<div class="qtLeftInvoices">
<div class="firstField">
<div class="qtFormLabel">Account/Phone/Circuit</div>
<div>
<input id="qt_invoices_text1" type="text" value=""/>
</div>
</div>
<div class="secondField">
</div>
<div class="qtRight">
</div>
</div>
</div>
<!-- Repairs -->
<div id="qt_repairs" class="qtStack" style="display:block">
<!-- Lottery Reporting -->
<!-- Reporting -->
<form id="quickTaskForm" name="quickTaskForm" action="/enterprisesolutions/global/quickTaskAction.do" method="post">
<!-- QT No Access -->
<!-- QT Request Access -->
<div id="qt_request_access" class="qtStackAccess" style="display:block">
</div>
<div id="qtBottom" class="quickTaskBack" style="background: none repeat scroll 0% 0% transparent;">
</div>
<!-- start promo and customized pod -->
<div id="promo_msg">
<!-- end promo and customized pod -->
</div>
<!-- end content left-->
<div id="contentRight" style="height: 845px;">
<!-- end content right -->
</div>
id = mainContent 的 div 具有“溢出：隐藏”的样式，我猜这会导致 webdriver 找不到我的元素。
driver.findElement(By.cssSelector("#qt_invoices_text1")).sendKeys("hi");
driver.findElement(By.id("qt_invoices_text1")).sendKeys("hi");
我尝试了以下方法，但由于该字段被隐藏（并且使用正确的 xpath），它们不起作用。
我听说有一种方法可以使用 JavascriptExecutor 解决这个问题，但我还没有找到。
编辑：这是堆栈跟踪：
Exception in thread "main" org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"css selector","selector":"#qt_invoices_text1"}
Command duration or timeout: 20.18 seconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
System info: os.name: 'Windows 8', os.arch: 'amd64', os.version: '6.2', java.version: '1.7.0_21'
Session ID: 334122ae-6eab-4036-96ca-1183c9129b51
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{platform=XP, databaseEnabled=true, cssSelectorsEnabled=true, javascriptEnabled=true, acceptSslCerts=true, handlesAlerts=true, browserName=firefox, browserConnectionEnabled=true, nativeEvents=true, webStorageEnabled=true, rotatable=false, locationContextEnabled=true, applicationCacheEnabled=true, takesScreenshot=true, version=21.0}]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:191)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:554)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:307)
at org.openqa.selenium.remote.RemoteWebDriver.findElementByCssSelector(RemoteWebDriver.java:396)
at org.openqa.selenium.By$ByCssSelector.findElement(By.java:407)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:299)
at DownloadInvoice.read(DownloadInvoice.java:282)
at DownloadInvoice.main(DownloadInvoice.java:406)
Caused by: org.openqa.selenium.remote.ErrorHandler$UnknownServerException: Unable to locate element: {"method":"css selector","selector":"#qt_invoices_text1"}
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
System info: os.name: 'Windows 8', os.arch: 'amd64', os.version: '6.2', java.version: '1.7.0_21'
Driver info: driver.version: unknown
这是我的java代码（不相关但人们一直在问）（这是一个更大项目的一部分，这是唯一相关的代码）：
driver.get(sheet.getCell(j+1,i).getContents());
driver.findElement(By.id("UserId")).click();
driver.findElement(By.id("UserId")).clear();
driver.findElement(By.id("UserId")).sendKeys(sheet.getCell(j+2,i).getContents());
Thread.sleep(1000);
driver.findElement(By.id("PASSWORD")).click();
driver.findElement(By.id("PASSWORD")).clear();
driver.findElement(By.id("PASSWORD")).sendKeys(sheet.getCell(j+3,i).getContents());
Thread.sleep(5000);
driver.findElement(By.id("submit")).click();
Thread.sleep(2000);
driver.findElement(By.cssSelector("#qt_invoices_text1")).sendKeys("hi");
driver.findElement(By.id("submit")).click();
编辑：我玩过 Selenium IDE，它会在输入命令之前选择框架，SelectFrame _shellbody但是当我导出它时，它会在代码中显示为注释：
// ERROR: Caught exception [ERROR: Unsupported command [selectFrame | _shellbody | ]]
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