blocks|key|524215|text|public+static+WebElement+FindElement(WebDriver+driver,+By+by,+int+timeoutInSeconds)
{
++++WebDriverWait+wait+=+new+WebDriverWait(driver,+timeoutInSeconds);
++++wait.until(+ExpectedConditions.presenceOfElementLocated(by)+);+//throws+a+timeout+exception+if+element+not+present+after+waiting+<timeoutInSeconds>+seconds
++++return+driver.findElement(by);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|524216|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public static WebElement FindElement(WebDriver driver, By by, int timeoutInSeconds)
{
 WebDriverWait wait = new WebDriverWait(driver, timeoutInSeconds);
 wait.until( ExpectedConditions.presenceOfElementLocated(by) ); //throws a timeout exception if element not present after waiting &lt;timeoutInSeconds&gt; seconds
 return driver.findElement(by);
}
</code></pre>

blocks|key|740756|text|我也有同样的问题。对我来说，根据用户的权限级别，一些链接、按钮和其他元素将不会显示在页面上。我的套件的一部分是测试本应缺失的元素是否缺失。我花了几个小时试图弄清楚这件事。我终于找到了完美的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|740757|它的作用是告诉浏览器查找任何和所有基于指定的元素。如果结果为0，则意味着没有找到基于该规范的元素。然后我让代码执行一条if语句，让我知道没有找到它。|offset|length|style|CODE|740758|这是在C#中实现的，因此需要转换为Java。但不应该太难。|740759|public+void+verifyPermission(string+link)
{
++++IList<IWebElement>+adminPermissions+=+driver.FindElements(By.CssSelector(link));
++++if+(adminPermissions.Count+==+0)
++++{
++++++++Console.WriteLine("User's+permission+properly+hidden");
++++}
}|code-block|syntax|javascript|740760|根据您的测试需要，您还可以选择另一种方法。|740761|下面的代码片段正在检查页面上是否存在非常特定的元素。根据元素的存在，我让测试执行if+else。|740762|如果元素存在并显示在页面上，我让console.write让我知道并继续操作。如果有问题的元素存在，我就不能执行我需要的测试，这是需要设置它的主要原因。|740763|如果元素不存在，并且不显示在页面上。我让if+else中的else执行测试。|740764|IList<IWebElement>+deviceNotFound+=+driver.FindElements(By.CssSelector("CSS+LINK+GOES+HERE"));
//if+the+element+specified+above+results+in+more+than+0+elements+and+is+displayed+on+page+execute+the+following,+otherwise+execute+whats+in+the+else+statement
if+(deviceNotFound.Count+>+0+&&+deviceNotFound[0].Displayed){
++++//script+to+execute+if+element+is+found
}+else+{
++++//Test+script+goes+here.
}|740765|我知道我对行动的反应有点晚了。希望这对某些人有帮助！|740766|entityMap^0|0|U|1|0|3|2|H|4|0|0|0|0|G|D|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@$D|14|E|15|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|16|8|@$D|17|E|18|F|G]|$D|19|E|1A|F|G]]|9|@]|A|$]]|$1|J|3|K|5|L|7|1B|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1E|8|@$D|1F|E|1G|F|G]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|X|5|L|7|1I|8|@]|9|@]|A|$M|N]]|$1|Y|3|Z|5|6|7|1J|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|11|$]]

I had the same issue. For me, depending on a user's permission level, some links, buttons and other elements will not show on the page. Part of my suite was testing that the elements that SHOULD be missing, are missing. I spent hours trying to figure this out. I finally found the perfect solution. 

What this does, is tells the browser to look for any and all elements based specified. If it results in <code>0</code>, that means no elements based on the specification was found. Then i have the code execute an if statement to let me know it was not found.

This is in <code>C#</code>, so translations would need to be done to <code>Java</code>. But shouldnt be too hard.

<pre><code>public void verifyPermission(string link)
{
 IList&lt;IWebElement&gt; adminPermissions = driver.FindElements(By.CssSelector(link));
 if (adminPermissions.Count == 0)
 {
 Console.WriteLine("User's permission properly hidden");
 }
}
</code></pre>

There's also another path you can take depending on what you need for your test.

The following snippet is checking to see if a very specific element exists on the page. Depending on the element's existence I have the test execute an if else. 

If the element exists and is displayed on the page, I have <code>console.write</code> let me know and move on. If the element in question exists, I cannot execute the test I needed, which is the main reasoning behind needing to set this up.

If the element Does Not exists, and is not displayed on the page. I have the else in the if else execute the test.

<pre><code>IList&lt;IWebElement&gt; deviceNotFound = driver.FindElements(By.CssSelector("CSS LINK GOES HERE"));
//if the element specified above results in more than 0 elements and is displayed on page execute the following, otherwise execute whats in the else statement
if (deviceNotFound.Count &gt; 0 &amp;&amp; deviceNotFound[0].Displayed){
 //script to execute if element is found
} else {
 //Test script goes here.
}
</code></pre>

I know I'm a little late on the response to the OP. Hopefully this helps someone!

blocks|key|524326|text|如果一个私有方法简单地查找元素并确定它是否存在，情况会是这样的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524327|private+boolean+existsElement(String+id)+{
++++try+{
++++++++driver.findElement(By.id(id));
++++}+catch+(NoSuchElementException+e)+{
++++++++return+false;
++++}
++++return+true;
}|code-block|syntax|javascript|524328|这将是非常简单的，并且可以完成工作。|524329|编辑:您甚至可以更进一步，接受一个By+elementLocator作为参数，如果您想通过id以外的其他东西来查找元素，则消除了问题。|offset|length|style|CODE|524330|entityMap^0|0|0|0|H|H|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

What about a private method that simply looks for the element and determines if it is present like this:

<pre><code>private boolean existsElement(String id) {
 try {
 driver.findElement(By.id(id));
 } catch (NoSuchElementException e) {
 return false;
 }
 return true;
}
</code></pre>

This would be quite easy and does the job.

Edit: you could even go further and take a <code>By elementLocator</code> as parameter, eliminating problems if you want to find the element by something other than id.

blocks|key|740859|text|我发现这适用于Java：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|740860|WebDriverWait+waiter+=+new+WebDriverWait(driver,+5000);
waiter.until(+ExpectedConditions.presenceOfElementLocated(by)+);
driver.FindElement(by);|code-block|syntax|javascript|740861|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I found that this works for Java:

<pre><code>WebDriverWait waiter = new WebDriverWait(driver, 5000);
waiter.until( ExpectedConditions.presenceOfElementLocated(by) );
driver.FindElement(by);
</code></pre>

blocks|key|524416|text|我在Java中找到的最简单的方法是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524417|List<WebElement>+linkSearch=++driver.findElements(By.id("linkTag"));
int+checkLink=linkSearch.size();
if(checkLink!=0){++//do+something+you+want}|code-block|syntax|javascript|524418|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Simplest way I found in Java is:

<pre><code>List&lt;WebElement&gt; linkSearch= driver.findElements(By.id("linkTag"));
int checkLink=linkSearch.size();
if(checkLink!=0){ //do something you want}
</code></pre>

blocks|key|740974|text|为了确定某个特定元素是否存在，我们必须使用findElements()方法而不是findElement()方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|740975|int+i=driver.findElements(By.xpath(".......")).size();
if(i=0)
System.out.println("Element+is+not+present");
else
System.out.println("Element+is+present");|code-block|syntax|javascript|740976|这对我来说很有效..如果我错了，建议我..|740977|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

To find a particular Element is present or not, we have to use findElements() method instead of findElement()..

<pre><code>int i=driver.findElements(By.xpath(".......")).size();
if(i=0)
System.out.println("Element is not present");
else
System.out.println("Element is present");
</code></pre>

this is worked for me..
suggest me if i am wrong..

blocks|key|524555|text|如果你在ruby中使用rspec-Webdriver，你可以使用这个脚本，假设一个元素实际上不应该存在，并且它已经通过了测试。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524556|首先，从您的类RB文件中编写此方法|524557|class+Test
+def+element_present?
++++begin
++++++++browser.find_element(:name,+"this_element_id".displayed?
++++++++rescue+Selenium::WebDriver::Error::NoSuchElementError
++++++++++++puts+"this+element+should+not+be+present"
++++++++end
+end|code-block|syntax|javascript|524558|然后，在您的spec文件中调用该方法。|524559|++before(:all)+do++++
++++@Test=+Test.new(@browser)
++end

+@Test.element_present?.should+==+nil|524560|如果您的元素不存在，您的规范将通过，但如果元素存在，它将抛出错误，测试失败。|524561|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

if you are using rspec-Webdriver in ruby, you can use this script assuming that an element should really not be present and it is a passed test.

First, write this method first from your class RB file

<pre><code>class Test
 def element_present?
 begin
 browser.find_element(:name, "this_element_id".displayed?
 rescue Selenium::WebDriver::Error::NoSuchElementError
 puts "this element should not be present"
 end
 end
</code></pre>

Then, on your spec file, call that method.

<pre><code> before(:all) do 
 @Test= Test.new(@browser)
 end

 @Test.element_present?.should == nil
</code></pre>

If your the element is NOT present, your spec will pass, but if the element is present , it will throw an error, test failed.

blocks|key|524580|text|这应该可以做到：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524581|try+{
++++driver.findElement(By.id(id));
}+catch+(NoSuchElementException+e)+{
++++//do+what+you+need+here+if+you+were+expecting
++++//the+element+wouldn't+exist
}|code-block|syntax|javascript|524582|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This should do it:

<pre><code>try {
 driver.findElement(By.id(id));
} catch (NoSuchElementException e) {
 //do what you need here if you were expecting
 //the element wouldn't exist
}
</code></pre>

blocks|key|524651|text|您可以尝试隐式等待：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524652|WebDriver+driver+=+new+FirefoxDriver();
driver.Manage().Timeouts().ImplicitlyWait(TimeSpan.FromSeconds(10));
driver.Url+=+"http://somedomain/url_that_delays_loading";
IWebElement+myDynamicElement+=+driver.FindElement(By.Id("someDynamicElement"));|code-block|syntax|javascript|524653|或者，您可以尝试显式等待1：|524654|IWebDriver+driver+=+new+FirefoxDriver();
driver.Url+=+"http://somedomain/url_that_delays_loading";
WebDriverWait+wait+=+new+WebDriverWait(driver,+TimeSpan.FromSeconds(10));
IWebElement+myDynamicElement+=+wait.Until<IWebElement>((d)+=>
++++{
++++++++return+d.FindElement(By.Id("someDynamicElement"));
++++});|524655|Explicit将在执行某些操作之前检查元素是否存在。在代码中的每个地方都可以调用隐式等待。例如，在一些AJAX操作之后。|524656|有关更多信息，请访问SeleniumHQ+page|offset|length|524657|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.seleniumhq.org/docs/04_webdriver_advanced.jsp^0|0|0|0|0|0|A|F|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@$O|14|P|15|1|16]]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

You can try implicit wait: 

<pre><code>WebDriver driver = new FirefoxDriver();
driver.Manage().Timeouts().ImplicitlyWait(TimeSpan.FromSeconds(10));
driver.Url = "http://somedomain/url_that_delays_loading";
IWebElement myDynamicElement = driver.FindElement(By.Id("someDynamicElement"));
</code></pre>

Or You can try explicit wait one: 

<pre><code>IWebDriver driver = new FirefoxDriver();
driver.Url = "http://somedomain/url_that_delays_loading";
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IWebElement myDynamicElement = wait.Until&lt;IWebElement&gt;((d) =&gt;
 {
 return d.FindElement(By.Id("someDynamicElement"));
 });
</code></pre>

Explicit will check if element is present before some action. Implicit wait could be call in every place in the code. For example after some AJAX actions.

More you can find at <a href="http://docs.seleniumhq.org/docs/04_webdriver_advanced.jsp" rel="nofollow noreferrer">SeleniumHQ page</a>

blocks|key|741180|text|就我个人而言，我总是混合使用上面的答案，并创建一个使用size()+>+0建议的可重用静态实用工具方法：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|741181|public+Class+Utility+{
+++...
+++public+static+boolean+isElementExist(WebDriver+driver,+By+by)+{
++++++return+driver.findElements(by).size()+>+0;
+++...
}|code-block|syntax|javascript|741182|这是整洁的、可重用的、可维护的……所有这些好东西;-)|741183|entityMap^0|R|A|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Personally, I always go for a mixture of the above answers and create a re-usable static Utility method that uses the <code>size() &gt; 0</code> suggestion:

<pre><code>public Class Utility {
 ...
 public static boolean isElementExist(WebDriver driver, By by) {
 return driver.findElements(by).size() &gt; 0;
 ...
}
</code></pre>

This is neat, re-usable, maintainable ... all that good stuff ;-)

blocks|key|741192|text|这对我来说很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|741193|+if(!driver.findElements(By.xpath("//*[@id='submit']")).isEmpty()){
++++//THEN+CLICK+ON+THE+SUBMIT+BUTTON
}else{
++++//DO+SOMETHING+ELSE+AS+SUBMIT+BUTTON+IS+NOT+THERE
}|code-block|syntax|javascript|741194|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This works for me:

<pre><code> if(!driver.findElements(By.xpath("//*[@id='submit']")).isEmpty()){
 //THEN CLICK ON THE SUBMIT BUTTON
}else{
 //DO SOMETHING ELSE AS SUBMIT BUTTON IS NOT THERE
}
</code></pre>

blocks|key|741278|text|通过在try+catch语句之前缩短selenium超时，可以使代码运行得更快。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|741279|我使用以下代码来检查元素是否存在。|741280|protected+boolean+isElementPresent(By+selector)+{
++++selenium.manage().timeouts().implicitlyWait(1,+TimeUnit.SECONDS);
++++logger.debug("Is+element+present"%2Bselector);
++++boolean+returnVal+=+true;
++++try{
++++++++selenium.findElement(selector);
++++}+catch+(NoSuchElementException+e){
++++++++returnVal+=+false;
++++}+finally+{
++++++++selenium.manage().timeouts().implicitlyWait(15,+TimeUnit.SECONDS);
++++}
++++return+returnVal;
}|code-block|syntax|javascript|741281|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can make the code run faster by shorting the selenium timeout before your try catch statement.

I use the following code to check if an element is present.

<pre><code>protected boolean isElementPresent(By selector) {
 selenium.manage().timeouts().implicitlyWait(1, TimeUnit.SECONDS);
 logger.debug("Is element present"+selector);
 boolean returnVal = true;
 try{
 selenium.findElement(selector);
 } catch (NoSuchElementException e){
 returnVal = false;
 } finally {
 selenium.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS);
 }
 return returnVal;
}
</code></pre>

blocks|key|524861|text|使用Java编写以下函数/方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|524862|protected+boolean+isElementPresent(By+by){
++++++++try{
++++++++++++driver.findElement(by);
++++++++++++return+true;
++++++++}
++++++++catch(NoSuchElementException+e){
++++++++++++return+false;
++++++++}
++++}|code-block|syntax|javascript|524863|在断言过程中使用适当的参数调用该方法。|524864|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Write the following function/methos using Java:

<pre><code>protected boolean isElementPresent(By by){
 try{
 driver.findElement(by);
 return true;
 }
 catch(NoSuchElementException e){
 return false;
 }
 }
</code></pre>

Call the method with appropriate parameter during assertion.

blocks|key|741404|text|我会使用类似的东西(在Scala中，旧的“好的”Java+8中的代码可能类似于下面的代码)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|741405|object+SeleniumFacade+{

++def+getElement(bySelector:+By,+maybeParent:+Option[WebElement]+=+None,+withIndex:+Int+=+0)(implicit+driver:+RemoteWebDriver):+Option[WebElement]+=+{
++++val+elements+=+maybeParent+match+{
++++++case+Some(parent)+=>+parent.findElements(bySelector).asScala
++++++case+None+=>+driver.findElements(bySelector).asScala
++++}
++++if+(elements.nonEmpty)+{
++++++Try+{+Some(elements(withIndex))+}+getOrElse+None
++++}+else+None
++}
++...
}|code-block|syntax|javascript|741406|那么，|741407|val+maybeHeaderLink+=+SeleniumFacade+getElement(By.xpath(".//a"),+Some(someParentElement))|741408|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I would use something like (with Scala [the code in old "good" Java 8 may be similar to this]):

<pre><code>object SeleniumFacade {

 def getElement(bySelector: By, maybeParent: Option[WebElement] = None, withIndex: Int = 0)(implicit driver: RemoteWebDriver): Option[WebElement] = {
 val elements = maybeParent match {
 case Some(parent) =&gt; parent.findElements(bySelector).asScala
 case None =&gt; driver.findElements(bySelector).asScala
 }
 if (elements.nonEmpty) {
 Try { Some(elements(withIndex)) } getOrElse None
 } else None
 }
 ...
}
</code></pre>

so then,

<pre><code>val maybeHeaderLink = SeleniumFacade getElement(By.xpath(".//a"), Some(someParentElement))
</code></pre>

blocks|key|524923|text|public+boolean+isElementDisplayed()+{
++++++++return+!driver.findElements(By.xpath("...")).isEmpty();
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|524924|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public boolean isElementDisplayed() {
 return !driver.findElements(By.xpath("...")).isEmpty();
 }
</code></pre>

Is there a way how to test if an element is present? Any findElement method would end in an exception, but that is not what I want, because it can be that an element is not present and that is okay, that is not a fail of the test, so an exception can not be the solution.

I've found this post: <a href="https://stackoverflow.com/questions/6992993/selenium-c-sharp-webdriver-wait-until-element-is-present">Selenium c# Webdriver: Wait Until Element is Present</a>
But this is for C# and I am not very good at it. Can anyone translate the code into Java? I am sorry guys, I tried it out in Eclipse but I don't get it right into Java code.

This is the code:

<pre><code>public static class WebDriverExtensions{
 public static IWebElement FindElement(this IWebDriver driver, By by, int timeoutInSeconds){

 if (timeoutInSeconds &gt; 0){
 var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(timeoutInSeconds));
 return wait.Until(drv =&gt; drv.FindElement(by));
 }

 return driver.FindElement(by);
 }
}
</code></pre>

Test if element is present using Selenium WebDriver?

Eclipse

Java

有没有一种方法可以测试元素是否存在？任何findElement方法都会以异常结束，但这不是我想要的，因为元素可能不存在，这没有关系，这不是测试失败，所以异常不是解决方案。我找到了这篇文章：，但这篇文章是为C#写的，我不太擅长。有人能把代码翻译成Java吗？很抱歉，伙计们，我在Eclipse中尝试过，但是我不能正确地在J...

问使用Selenium WebDriver测试元素是否存在？
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