Selenium WebDriver - 如何使用 C# 设置页面加载超时
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Selenium WebDriver - How to set Page Load Timeout using C#
提问by KabanaSoft
I am using Selenium 2.20 WebDriver to create and manage a firefox browser with C#. To visit a page, i use the following code, setting the driver timeouts before visiting the URL:
我正在使用 Selenium 2.20 WebDriver 创建和管理带有 C# 的 firefox 浏览器。要访问页面，我使用以下代码，在访问 URL 之前设置驱动程序超时：
driver.Manage().Timeouts().ImplicitlyWait(TimeSpan.FromSeconds(5)); // Set implicit wait timeouts to 5 secs
driver.Manage().Timeouts().SetScriptTimeout(new TimeSpan(0, 0, 0, 5)); // Set script timeouts to 5 secs
driver.Navigate().GoToUrl(myUrl); // Goto page url
The problem is that sometimes pages take forever to load, and it appears that the default timeout for a page to load using the selenium WebDriver is 30 seconds, which is too long. And i don't believe the timeouts i am setting apply to the loading of a page using the GoToUrl() method.
问题是有时页面需要永远加载，而且使用 selenium WebDriver 加载页面的默认超时时间似乎是 30 秒，这太长了。而且我不相信我设置的超时适用于使用 GoToUrl() 方法加载页面。
So I am trying to figure out how to set a timeout for a page to load, however, i cannot find any property or method that actually works. The default 30 second timeout also seems to apply to when i click an element.
所以我试图弄清楚如何设置页面加载超时，但是，我找不到任何实际有效的属性或方法。当我单击一个元素时，默认的 30 秒超时似乎也适用。
Is there a way to set the page load timeout to a specific value so that when i call the GoToUrl() method it will only wait my specified time before continuing?
有没有办法将页面加载超时设置为特定值，以便当我调用 GoToUrl() 方法时，它只会在继续之前等待我指定的时间？
回答by Amey
With this you should be able to declare a wait explicitly.
有了这个，您应该能够明确声明等待。
WebDriverWait wait = new WebDriverWait(browser, new TimeSpan(time in seconds));
wait.until(Your condition)
you could also change the implicit wait time
您还可以更改隐式等待时间
driver.Manage().Timeouts().ImplicitlyWait(TimeSpan.FromSeconds(10));
I think that is the syntax in C#. (not to sure)
我认为这是 C# 中的语法。（不确定）
In ruby it is
在红宝石中它是
@driver.manage.timeouts.implicit_wait = 30
@wait = Selenium::WebDriver::Wait.new(:timeout => 30)
回答by JimEvans
Page load timeouts are not implemented in the .NET bindings yet. Hopefully they will be soon.
.NET 绑定中尚未实现页面加载超时。希望他们会很快。
回答by KabanaSoft
i found the solution this this issue. When creating a new FirefoxDriver, there are overloads in the constructor that allow you to specify a command timeout which is the maximum time to wait for each command, and it seems to be working when calling the GoToUrl() method:
我找到了这个问题的解决方案。创建新的 FirefoxDriver 时，构造函数中有重载允许您指定命令超时，即等待每个命令的最长时间，并且在调用 GoToUrl() 方法时似乎可以正常工作：
driver = new FirefoxDriver(new FirefoxBinary(), profile, new TimeSpan(0, 0, 0, timeoutSeconds));
link to FirefoxDriver constructor documentation for reference: http://selenium.googlecode.com/svn/trunk/docs/api/dotnet/html/M_OpenQA_Selenium_Firefox_FirefoxDriver__ctor_2.htm
链接到 FirefoxDriver 构造函数文档以供参考：http://selenium.googlecode.com/svn/trunk/docs/api/dotnet/html/M_OpenQA_Selenium_Firefox_FirefoxDriver__ctor_2.htm
Hope this helps someone else who runs into this problem.
希望这可以帮助遇到此问题的其他人。
回答by ktam33
In case this helps anyone still looking for the answer to this, the C# WebDriver API now contains the appropriate method.
如果这有助于任何仍在寻找答案的人，C# WebDriver API 现在包含适当的方法。
driver.Manage().Timeouts().SetPageLoadTimeout(timespan)
回答by Josh
driver.Manage().Timeouts().PageLoad = TimeSpan.FromSeconds(5);
Note: driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(5))is now deprecated.
注意：driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(5))现在已弃用。
回答by Ywapom
As of 2018: Besides these:
截至 2018 年：除此之外：
driver.Manage().Timeouts().ImplicitWait.Add(System.TimeSpan.FromSeconds(5));
driver.Manage().Timeouts().PageLoad.Add(System.TimeSpan.FromSeconds(5));
driver.Manage().Timeouts().AsynchronousJavaScript.Add(timespan));
wait for searching for an item, loading a page, and waiting for script respectively. There is:
分别等待搜索项目、加载页面和等待脚本。有：
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
回答by Marko Marchiori
We brazilians have a word for crappy workarounds "Gambiarra"... Well... at least they do the job... Here is mine:
我们巴西人有一个词来形容蹩脚的变通办法“Gambiarra”……好吧……至少他们完成了这项工作……这是我的：
var url = "www.your.url.here"
try {
DRIVER.Navigate().GoToUrl(url);
} catch {
// Here you can freely use the Selenium's By class:
WaitElement(By.Id("element_id_or_class_or_whatever_to_be_waited"), 60);
}
// rest of your application
What my WaitElement(By, int)does:
我的WaitElement(By, int)工作：
/// <summary>
/// Waits until an element of the type <paramref name="element"/> to show in the screen.
/// </summary>
/// <param name="element">Element to be waited for.</param>
/// <param name="timeout">How long (in seconds) it should be waited for.</param>
/// <returns>
/// False: Never found the element.
/// True: Element found.
/// </returns>
private bool WaitElement(By element, int timeout)
{
try {
Console.WriteLine($" - Waiting for the element {element.ToString()}");
int timesToWait = timeout * 4; // Times to wait for 1/4 of a second.
int waitedTimes = 0; // Times waited.
// This setup timesout at 7 seconds. you can change the code to pass the
do {
waitedTimes++;
if (waitedTimes >= timesToWait) {
Console.WriteLine($" -- Element not found within (" +
$"{(timesToWait * 0.25)} seconds). Canceling section...");
return false;
}
Thread.Sleep(250);
} while (!ExistsElement(element));
Console.WriteLine($" -- Element found. Continuing...");
// Thread.Sleep(1000); // may apply here
return true;
} catch { throw; }
}
After this, you can play with timeout...
在此之后，您可以玩timeout...
Make Bythe things you notice that loads last in the page (like javascript elements and captchas) remembering: it will start working the // rest of your applicationbefore the page fully loads, therefore may be nice to put a Thread.Sleep(1000)at the end just to be sure...
使By您注意到的内容最后加载到页面中（如 javascript 元素和验证码）记住：它将// rest of your application在页面完全加载之前开始工作，因此最好Thread.Sleep(1000)在最后放置一个以确保...
Also notice that this method will be called AFTER the 60 seconds standard timeout from Selenium's DRIVER.Navigate().GoToUrl(url);
另请注意，此方法将在 Selenium 的 60 秒标准超时后调用 DRIVER.Navigate().GoToUrl(url);
Not the best, but... as I said: A good gambiarra gets the job done...
不是最好的，但是......正如我所说：一个好的 gambiarra 完成工作......
回答by T. Muir
driver.Manage().Timeouts().SetPageLoadTimeout(timespan)
does not work.
不起作用。
This works. Use a property setter syntax.
这有效。使用属性设置器语法。
driver.Manage().Timeouts().PageLoad = TimeSpan.FromSeconds(15);
回答by imba-tjd
For anyone who wants the opposite effect: setting timeout longer than 60s.
对于任何想要相反效果的人：设置超时时间超过 60 秒。
You need both use:
您需要同时使用：
new FirefoxDriver(FirefoxDriverService.CreateDefaultService(), new FirefoxOptions(), TimeSpan.FromSeconds(120))
and
和
driver.Manage().Timeouts().PageLoad = TimeSpan.FromSeconds(120);
The new FirefoxDriver(binary, profile, timeSpan)has been obsolete.
在new FirefoxDriver(binary, profile, timeSpan)已经过时。
