全部：
我正在使用 Selenium WebDriver 运行一个简单的 Java 应用程序。
我能够使用 org.openqa.selenium.htmlunit.HtmlUnitDriver在http://www.google.com上成功运行搜索
我尝试在http://www.yahoo.com上运行相同的搜索词，如以下代码摘录所示：
CharSequence[] searchTerm = { "bbc", "news" };
// Create a new instance of the html unit driver
// Notice that the remainder of the code relies on the interface,
// not the implementation.
WebDriver driver = new HtmlUnitDriver();
// And now use this to visit Google
driver.get("http://www.yahoo.com");
// Find the text input element by its name
WebElement element = driver.findElement(By.name("q"));
//searchTerm = "bbc news";
// Enter something to search for
element.sendKeys(searchTerm);
// Now submit the form. WebDriver will find the form for us from the element
element.submit();
// Check the title of the page
System.out.println("Page title is: " + driver.getTitle());
driver.quit();
但是，它给了我以下错误：
Oct 17, 2014 3:18:44 PM org.apache.http.client.protocol.ResponseProcessCookies processCookies
WARNING: Cookie rejected [DNR="deleted", version:0, domain:.www.yahoo.com, path:/, expiry:Thu Oct 17 15:18:45 IST 2013] Illegal domain attribute "www.yahoo.com". Domain of origin: "in.yahoo.com"
Exception in thread "main" org.openqa.selenium.NoSuchElementException: Unable to locate element with name: q
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '2.43.1', revision: '5163bce', time: '2014-09-10 16:27:58'
System info: host: , ip: , os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_05'
Driver info: driver.version: HtmlUnitDriver
at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElementByName(HtmlUnitDriver.java:1001)
为什么它对 http://www.google.com 工作正常但对http://www.yahoo.com失败 ？
为什么它会抛出“线程 main org.openqa.selenium.NoSuchElementException 中的异常无法找到名称为 q 的元素”错误？
更新答案
感谢 @Sriram 和 @ivan_ochc ，我能够运行以下代码来正确搜索http://www.yahoo.com
// Create a new instance of the html unit driver
// Notice that the remainder of the code relies on the interface,
// not the implementation.
WebDriver driver = new HtmlUnitDriver();
// And now use this to visit Google
driver.get("http://www.yahoo.com");
// Find the text input element by its name
WebElement element = driver.findElement(By.name("p"));