blocks|key|881310|text|var+wait+=+new+WebDriverWait(d,+TimeSpan.FromSeconds(5));
var+element+=+wait.Until(driver+=>+driver.FindElement(By.Id("Hobbies")));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|881311|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>var wait = new WebDriverWait(d, TimeSpan.FromSeconds(5));
var element = wait.Until(driver =&gt; driver.FindElement(By.Id("Hobbies")));
</code></pre>

blocks|key|881338|text|如果对ajax请求使用jQuery，可以等到jQuery.active属性为零。其他库可能有类似的选项。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|881339|public+void+WaitForAjax()
{
++++while+(true)+//+Handle+timeout+somewhere
++++{
++++++++var+ajaxIsComplete+=+(bool)(driver+as+IJavaScriptExecutor).ExecuteScript("return+jQuery.active+==+0");
++++++++if+(ajaxIsComplete)
++++++++++++break;
++++++++Thread.Sleep(100);
++++}
}|code-block|syntax|javascript|881340|entityMap^0|M|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

If you're using jQuery for your ajax requests, you can wait until the <code>jQuery.active</code> property is zero. Other libraries might have similar options.

<pre><code>public void WaitForAjax()
{
 while (true) // Handle timeout somewhere
 {
 var ajaxIsComplete = (bool)(driver as IJavaScriptExecutor).ExecuteScript("return jQuery.active == 0");
 if (ajaxIsComplete)
 break;
 Thread.Sleep(100);
 }
}
</code></pre>

blocks|key|881488|text|您还可以在这里使用Selenium显式等待。这样你就不需要自己处理超时了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|881489|public+void+WaitForAjax()
{
++++var+wait+=+new+WebDriverWait(driver,+TimeSpan.FromSeconds(15));
++++wait.Until(d+=>+(bool)(d+as+IJavaScriptExecutor).ExecuteScript("return+jQuery.active+==+0"));
}|code-block|syntax|javascript|881490|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|$]]

You could also use the Selenium explicit wait here. Then you don't need to handle timeout yourself

<pre><code>public void WaitForAjax()
{
 var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(15));
 wait.Until(d =&gt; (bool)(d as IJavaScriptExecutor).ExecuteScript("return jQuery.active == 0"));
}
</code></pre>

blocks|key|664377|text|只需添加一个超时参数即可进行一点改进：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|664378|internal+static+void+WaitForAllAjaxCalls(this+ISelenium+selenium,+IWebDriver+driver,+int+timeout+=+40)
++++{
++++++++Stopwatch+sw+=+new+Stopwatch();
++++++++sw.Start();
++++++++while+(true)
++++++++{
++++++++++++if+(sw.Elapsed.Seconds+>+timeout)+throw+new+Exception("Timeout");
++++++++++++var+ajaxIsComplete+=+(bool)driver.ExecuteScript("return+jQuery.active+==+0");
++++++++++++if+(ajaxIsComplete)
++++++++++++++++break;
++++++++++++Thread.Sleep(100);
++++++++}++++++++++++
++++}|code-block|syntax|javascript|664379|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|$]]

Just a little improvement by adding a timeout parameter:

<pre><code>internal static void WaitForAllAjaxCalls(this ISelenium selenium, IWebDriver driver, int timeout = 40)
 {
 Stopwatch sw = new Stopwatch();
 sw.Start();
 while (true)
 {
 if (sw.Elapsed.Seconds &gt; timeout) throw new Exception("Timeout");
 var ajaxIsComplete = (bool)driver.ExecuteScript("return jQuery.active == 0");
 if (ajaxIsComplete)
 break;
 Thread.Sleep(100);
 } 
 }
</code></pre>

blocks|key|664463|text|只是一些小的改进：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|664464|//Wait+for+Ajax+call+to+complete
++public+void+WaitForAjax1()+throws+InterruptedException
++++{

++++++++while+(true)
++++++++{
++++++++++++if+((Boolean)+((JavascriptExecutor)driver).executeScript("return+jQuery.active+==+0")){
++++++++++++++++break;
++++++++++++}
++++++++++++Thread.sleep(100);
++++++++}
++++}|code-block|syntax|javascript|664465|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|$]]

Just small improvement: 

<pre><code>//Wait for Ajax call to complete
 public void WaitForAjax1() throws InterruptedException
 {

 while (true)
 {
 if ((Boolean) ((JavascriptExecutor)driver).executeScript("return jQuery.active == 0")){
 break;
 }
 Thread.sleep(100);
 }
 }
</code></pre>

blocks|key|881401|text|下面是我的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|881402|public+static+void+WaitForCommission+(WebDriver+driver)+throws+Exception+{
++++for+(int+second+=+0;;+second%2B%2B)+{
++++++++if+(second+>=+30)+fail("timeout");
++++++++try+{+
++++++++++++if+(IsElementActive(By.id("transferPurposeDDL"),+driver))+
++++++++++++++++break;+
++++++++++++}+catch+(Exception+e)+{}
++++++++Thread.sleep(1000);
++++}
}

private+static+boolean+IsElementActive(By+id,+WebDriver+driver)+{
++++WebElement+we+=++driver.findElement(id);++++++++
++++if(we.isEnabled())
++++++++return+true;
++++return+false;
}|code-block|syntax|javascript|881403|这段代码确实很好用。|881404|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|$]]

Here is my code:

<pre><code>public static void WaitForCommission (WebDriver driver) throws Exception {
 for (int second = 0;; second++) {
 if (second &gt;= 30) fail("timeout");
 try { 
 if (IsElementActive(By.id("transferPurposeDDL"), driver)) 
 break; 
 } catch (Exception e) {}
 Thread.sleep(1000);
 }
}

private static boolean IsElementActive(By id, WebDriver driver) {
 WebElement we = driver.findElement(id); 
 if(we.isEnabled())
 return true;
 return false;
}
</code></pre>

This code is really work.

blocks|key|881603|text|如果您使用的是Graphene，则可以使用以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|881604|Graphene.waitModel().until((Predicate<WebDriver>)+input+->+(Boolean)+((JavascriptExecutor)+input).executeScript("return+jQuery.active+==+0"));|code-block|syntax|javascript|881605|entityMap|0|LINK|mutability|MUTABLE|url|http://arquillian.org/modules/graphene-extension/^0|7|8|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you are using <a href="http://arquillian.org/modules/graphene-extension/" rel="nofollow">Graphene</a> you can use this:

<pre><code>Graphene.waitModel().until((Predicate&lt;WebDriver&gt;) input -&gt; (Boolean) ((JavascriptExecutor) input).executeScript("return jQuery.active == 0"));
</code></pre>

blocks|key|664611|text|“XML+Http请求”是用于向服务器发送Ajax请求的协议，因此这种请求的出现表明正在进行基于Ajax的操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|664612|有许多浏览器插件可以让您监控浏览器发送的XML+Http请求。我个人使用Firefox的Firebug插件，这是一个非常有用的工具。安装后，Firebug会在浏览器窗口的右下角显示一个类似Bug的图标。单击类似bug的图标将启动Firebug，如上图所示。选择“Net”，然后选择“XHR”以启动XHR控制台，其中将显示浏览器发送的所有XML+HTTP请求。|664613|尽量避免使用thread.sleep()。下面是一段代码，它接受等待时间作为输入，并在指定的时间内运行秒表。|664614|您可以将以秒为单位的输入时间设置为30开始。|664615|protected+void+WaitForAjaxToComplete(int+timeoutSecs)
++++++++{

++++++++++++var+stopWatch+=+new+Stopwatch();

++++++++++++try
++++++++++++{
++++++++++++++++while+(stopWatch.Elapsed.TotalSeconds+<+timeoutSecs)
++++++++++++++++{

++++++++++++++++++++var+ajaxIsComplete+=+(bool)(WebDriver+as+IJavaScriptExecutor).ExecuteScript("return+jQuery.active+==+0");
++++++++++++++++++++if+(ajaxIsComplete)
++++++++++++++++++++{
++++++++++++++++++++++++break;
++++++++++++++++++++}

++++++++++++++++}
++++++++++++}
++++++++++++//Exception+Handling
++++++++++++catch+(Exception+ex)
++++++++++++{
++++++++++++++++stopWatch.Stop();
++++++++++++++++throw+ex;
++++++++++++}
++++++++++++stopWatch.Stop();

++++++++}|code-block|syntax|javascript|664616|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|R|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

The “XML Http Request” is the protocol used to send Ajax requests to the server and so the presence of such a request indicates an Ajax based operation in progress.

There are a number of browser plugins that allow you to monitor XML Http Requests sent by the browser. I personally use the Firebug plugin for Firefox which is a very useful tool. Once installed Firebug displays a Bug-like icon at the bottom right corner of the browser window. Clicking on the bug-like icon launches Firebug as shown in the image above. Select the “Net” and then “XHR” to launch the XHR console where all XML HTTP Requests sent by the browser will be displayed.

Avoid using thread.sleep() as much as possible. Here is a piece of code that accepts wait time as input and runs a stop watch for the specified time. 

You may set the input time in seconds to 30 to start with.

<pre><code>protected void WaitForAjaxToComplete(int timeoutSecs)
 {

 var stopWatch = new Stopwatch();

 try
 {
 while (stopWatch.Elapsed.TotalSeconds &lt; timeoutSecs)
 {

 var ajaxIsComplete = (bool)(WebDriver as IJavaScriptExecutor).ExecuteScript("return jQuery.active == 0");
 if (ajaxIsComplete)
 {
 break;
 }

 }
 }
 //Exception Handling
 catch (Exception ex)
 {
 stopWatch.Stop();
 throw ex;
 }
 stopWatch.Stop();

 }
</code></pre>

blocks|key|664661|text|如果您使用Coypu，您可以在AJAX调用后检查元素是否存在，然后可以单击它：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|664662|private+void+WaitUntilExistsThenClick(string+selectorId)
{
++++var+searchBoxExists+=+new+State(()+=>+browser.FindId(selectorId).Exists());
++++if+(browser.FindState(searchBoxExists)+==+searchBoxExists)
++++{++++++++++++++++
++++++++browser.FindId(selectorId).Click();
++++}
}+++++++|code-block|syntax|javascript|664663|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/featurist/coypu^0|5|5|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you use <a href="https://github.com/featurist/coypu" rel="nofollow noreferrer">Coypu</a> you can Check if an element exists after an AJAX call and then you can click it:

<pre><code>private void WaitUntilExistsThenClick(string selectorId)
{
 var searchBoxExists = new State(() =&gt; browser.FindId(selectorId).Exists());
 if (browser.FindState(searchBoxExists) == searchBoxExists)
 { 
 browser.FindId(selectorId).Click();
 }
} 
</code></pre>

I'm using Selenium 2 WebDriver to test an UI which uses AJAX.

Is there a way to make the driver to wait for a bit that the Ajax request will complete.

Basically I have this :

<pre><code>d.FindElement(By.XPath("//div[8]/div[3]/div/button")).Click();
// This click trigger an ajax request which will fill the below ID with content.
// So I need to make it wait for a bit.

Assert.IsNotEmpty(d.FindElement(By.Id("Hobbies")).Text);
</code></pre>

Wait for an Ajax call to complete with Selenium 2 WebDriver

服务器

jQuery

我正在使用Selenium 2 WebDriver测试使用AJAX的UI。有没有办法让驱动程序等待Ajax请求完成一段时间。基本上我有这样的想法：d.FindElement(By.XPath("//div[8]/div[3]/div/button")).Click();// This click trigger an ajax request which will fill the below I

问等待使用Selenium 2 WebDriver完成Ajax调用
EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问等待使用Selenium 2 WebDriver完成Ajax调用EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问等待使用Selenium 2 WebDriver完成Ajax调用
EN