Selenium 请等待文档准备就绪
有人能告诉我如何让selenium等到页面完全加载时再运行吗?我想要一些通用的东西,我知道我可以配置WebDriverWait并调用类似“find”的东西让它等待,但我没有走那么远。我只需要测试页面是否成功加载,然后转到下一个页面进行测试 我在.net中找到了一些东西,但无法在java中运行Selenium 请等待文档准备就绪,selenium,load,document,wait,Selenium,Load,Document,Wait,有人能告诉我如何让selenium等到页面完全加载时再运行吗?我想要一些通用的东西,我知道我可以配置WebDriverWait并调用类似“find”的东西让它等待,但我没有走那么远。我只需要测试页面是否成功加载,然后转到下一个页面进行测试 我在.net中找到了一些东西,但无法在java中运行 IWait<IWebDriver> wait = new OpenQA.Selenium.Support.UI.WebDriverWait(driver, TimeSpan.FromSecond
IWait<IWebDriver> wait = new OpenQA.Selenium.Support.UI.WebDriverWait(driver, TimeSpan.FromSeconds(30.00));
wait.Until(driver1 => ((IJavaScriptExecutor)driver).ExecuteScript("return document.readyState").Equals("complete"));
IWait wait=new OpenQA.Selenium.Support.UI.WebDriverWait(driver,TimeSpan.FromSeconds(30.00));
wait.Until(driver1=>((IJavaScriptExecutor)driver.ExecuteScript(“return document.readyState”).Equals(“complete”);
有人有什么想法吗?这是您给出的示例的Java版本:
void waitForLoad(WebDriver驱动程序){
新WebDriverWait(驱动程序,30)。直到((预期条件)wd->
((JavascriptExecutor)wd.executeScript(“return document.readyState”).equals(“complete”);
}
c#的示例:
publicstaticvoidwaitforload(IWebDriver驱动程序,int-timeoutSec=15)
{
IJavaScriptExecutor js=(IJavaScriptExecutor)驱动程序;
WebDriverWait wait=新的WebDriverWait(驱动程序,新的时间跨度(0,0,timeoutSec));
等到(wd=>js.ExecuteScript(“return document.readyState”).ToString()==“complete”);
}
PHP示例:
最终公共函数waituntldomreadystate(RemoteWebDriver$webDriver):无效
{
$webDriver->wait()->until(函数(){
return$webDriver->executeScript('return document.readyState')=='complete';
});
}
尝试以下代码:
driver.manage().timeouts().pageLoadTimeout(10, TimeUnit.SECONDS);
上述代码将等待长达10秒的页面加载。如果页面加载超过时间,它将抛出TimeoutException
。你抓住了这个例外并满足了你的需求。我不确定它是否在抛出异常后退出页面加载。我还没有尝试这个代码。我想试试看
这是一种隐含的等待。如果设置一次,它将具有作用域,直到Web驱动程序实例销毁
有关更多信息,请参阅。您建议的解决方案仅等待信号
完成。但是默认情况下,Selenium会尝试通过和方法等待页面上的加载(以及更多)。他们已经阻塞,他们等待页面完全加载,这些应该可以正常工作
显然,问题在于通过AJAX请求和运行脚本的重定向——Selenium无法捕获这些重定向,它不会等待它们完成。此外,您无法通过readyState
可靠地捕获它们-它会等待一段时间,这可能很有用,但它会在下载所有AJAX内容之前发出完成的信号
没有一个通用的解决方案可以适用于所有地方和每个人,这就是为什么它很难,每个人都使用一些不同的东西
一般的规则是依靠WebDriver完成自己的工作,然后使用隐式等待,然后使用显式等待,等待您想要在页面上断言的元素,但是还有很多技术可以完成。你应该在你的测试页面上选择一个(或几个的组合)在你的情况下效果最好
有关更多信息,请参见我的两个答案:
公共无效waitForPageToLoad()
{
(新WebDriverWait(驱动程序,默认等待时间))。直到(新的ExpectedCondition(){
公共布尔应用(WebDriver d){
return((org.openqa.selenium.JavascriptExecutor)driver.executeScript(“return document.readyState”).equals(“complete”);
}
});//这里默认的_WAIT _TIME是一个整数,对应于以秒为单位的等待时间
您可以编写一些逻辑来处理此问题。我已经编写了一个方法,该方法将返回WebElement
,此方法将被调用三次,或者您可以增加时间并为WebElement
添加空检查。下面是一个示例
public static void main(String[] args) {
WebDriver driver = new FirefoxDriver();
driver.get("https://www.crowdanalytix.com/#home");
WebElement webElement = getWebElement(driver, "homekkkkkkkkkkkk");
int i = 1;
while (webElement == null && i < 4) {
webElement = getWebElement(driver, "homessssssssssss");
System.out.println("calling");
i++;
}
System.out.println(webElement.getTagName());
System.out.println("End");
driver.close();
}
public static WebElement getWebElement(WebDriver driver, String id) {
WebElement myDynamicElement = null;
try {
myDynamicElement = (new WebDriverWait(driver, 10))
.until(ExpectedConditions.presenceOfElementLocated(By
.id(id)));
return myDynamicElement;
} catch (TimeoutException ex) {
return null;
}
}
publicstaticvoidmain(字符串[]args){
WebDriver=newfirefoxdriver();
驱动程序。获取(“https://www.crowdanalytix.com/#home");
WebElement WebElement=getWebElement(驱动程序,“homekkk”);
int i=1;
while(webElement==null&&i<4){
webElement=getWebElement(驱动程序,“homessss”);
System.out.println(“调用”);
i++;
}
System.out.println(webElement.getTagName());
系统输出打印项次(“结束”);
driver.close();
}
公共静态WebElement getWebElement(WebDriver驱动程序,字符串id){
WebElement myDynamicElement=null;
试一试{
myDynamicElement=(新的WebDriverWait(驱动程序,10))
.直到(预期条件)找到的元素的存在
.id(id));
返回动态加速;
}捕获(TimeoutException例外){
返回null;
}
}
以下是我在Python中尝试的一个完全通用的解决方案:
首先,一个通用的“wait”函数(如果您愿意,可以使用WebDriverWait,我觉得它们很难看):
要获得更多Pythonic、可重用、通用的帮助器,您可以制作一个上下文管理器:
from contextlib import contextmanager
@contextmanager
def wait_for_page_load(browser):
old_page = browser.find_element_by_tag_name('html')
yield
def page_has_loaded():
new_page = browser.find_element_by_tag_name('html')
return new_page.id != old_page.id
wait_for(page_has_loaded)
然后您可以在几乎任何selenium交互上使用它:
with wait_for_page_load(browser):
browser.find_element_by_link_text('my link').click()
我想那是防弹的!你觉得呢
更多信息,请参见红宝石:
wait = Selenium::WebDriver::Wait.new(:timeout => 10)
wait.until { @driver.execute_script('return document.readyState').eql?('complete') }
对于初始页面加载,我注意到“最大化”浏览器窗口实际上要等到页面加载完成(包括源)
替换:
AppDriver.Navigate().GoToUrl(url);
与:
而不是使用:
OpenURL(myDriver, myUrl);
这将加载页面,等待完成,最大化并专注于它。我不知道为什么它是这样,但它的工作
如果您想在单击“下一步”或任何其他页面导航触发后等待页面加载,然后单击“导航()”,Ben Dyer的回答(在此线程中)将完成此工作。我遇到了类似的问题。我需要等待文档准备就绪,但也需要等待所有Ajax调用完成。第二个条件是
wait = Selenium::WebDriver::Wait.new(:timeout => 10)
wait.until { @driver.execute_script('return document.readyState').eql?('complete') }
AppDriver.Navigate().GoToUrl(url);
public void OpenURL(IWebDriver AppDriver, string Url)
{
try
{
AppDriver.Navigate().GoToUrl(Url);
AppDriver.Manage().Window.Maximize();
AppDriver.SwitchTo().ActiveElement();
}
catch (Exception e)
{
Console.WriteLine("ERR: {0}; {1}", e.TargetSite, e.Message);
throw;
}
}
OpenURL(myDriver, myUrl);
return (document.readyState == 'complete' && jQuery.active == 0)
private void WaitUntilDocumentIsReady(TimeSpan timeout)
{
var javaScriptExecutor = WebDriver as IJavaScriptExecutor;
var wait = new WebDriverWait(WebDriver, timeout);
// Check if document is ready
Func<IWebDriver, bool> readyCondition = webDriver => javaScriptExecutor
.ExecuteScript("return (document.readyState == 'complete' && jQuery.active == 0)");
wait.Until(readyCondition);
}
<html>
<head>
</head>
<body data-page-initialized="false">
<p>Write you page here</p>
<script>
$(document).ready(function () {
$(document.body).attr('data-page-initialized', 'true');
});
</script>
</body>
</html>
public static void WaitForPageToLoad(this IWebDriver driver, int timeout = 15000)
{
//wait a bit for the page to start loading
Thread.Sleep(100);
//// In a limited number of cases, a "page" is an container error page or raw HTML content
// that does not include the body element and data-page-initialized element. In those cases,
// there will never be page initialization in the Tapestry sense and we return immediately.
if (!driver.ElementIsDisplayed("/html/body[@data-page-initialized]"))
{
return;
}
Stopwatch stopwatch = Stopwatch.StartNew();
int sleepTime = 20;
while(true)
{
if (driver.ElementIsDisplayed("/html/body[@data-page-initialized='true']"))
{
return;
}
if (stopwatch.ElapsedMilliseconds > 30000)
{
throw new Exception("Page did not finish initializing after 30 seconds.");
}
Thread.Sleep(sleepTime);
sleepTime *= 2; // geometric row of sleep time
}
}
public static bool ElementIsDisplayed(this IWebDriver driver, string xpath)
{
try
{
return driver.FindElement(By.XPath(xpath)).Displayed;
}
catch(NoSuchElementException)
{
return false;
}
}
driver.Url = this.GetAbsoluteUrl("/Account/Login");
driver.WaitForPageToLoad();
driver.get(homeUrl);
Thread.sleep(5000);
driver.findElement(By.xpath("Your_Xpath_here")).sendKeys(userName);
driver.findElement(By.xpath("Your_Xpath_here")).sendKeys(passWord);
driver.findElement(By.xpath("Your_Xpath_here")).click();
WebDriverWait wait = new WebDriverWait(dr, 30);
wait.until(ExpectedConditions.jsReturnsValue("return document.readyState==\"complete\";"));
Predicate<WebDriver> pageLoaded = wd -> ((JavascriptExecutor) wd).executeScript(
"return document.readyState").equals("complete");
new FluentWait<WebDriver>(driver).until(pageLoaded);
Predicate<WebDriver> pageLoaded = new Predicate<WebDriver>() {
@Override
public boolean apply(WebDriver input) {
return ((JavascriptExecutor) input).executeScript("return document.readyState").equals("complete");
}
};
new FluentWait<WebDriver>(driver).until(pageLoaded);
public static boolean waitUntilDOMIsReady(WebDriver driver) {
def maxSeconds = DEFAULT_WAIT_SECONDS * 10
for (count in 1..maxSeconds) {
Thread.sleep(100)
def ready = isDOMReady(driver);
if (ready) {
break;
}
}
public static boolean isDOMReady(WebDriver driver){
return driver.executeScript("return document.readyState");
}
public static void waitForPageToBeReady()
{
JavascriptExecutor js = (JavascriptExecutor)driver;
//This loop will rotate for 100 times to check If page Is ready after every 1 second.
//You can replace your if you wants to Increase or decrease wait time.
for (int i=0; i<400; i++)
{
try
{
Thread.sleep(1000);
}catch (InterruptedException e) {}
//To check page ready state.
if (js.executeScript("return document.readyState").toString().equals("complete"))
{
break;
}
}
}
driver.get('www.sidanmor.com').then(()=> {
// here the page is fully loaded!!!
// do your stuff...
}).catch(console.log.bind(console));
driver.get('www.sidanmor.com');
driver.sleep(3000);
// you can't be sure that the page is fully loaded!!!
// do your stuff... hope it will be OK...
public boolean waitForElement(String zoneName, String element, int index, int timeout) {
WebDriverWait wait = new WebDriverWait(appiumDriver, timeout/1000);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(element)));
return true;
}
public static void WaitForLoad(IWebDriver driver)
{
IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
int timeoutSec = 15;
WebDriverWait wait = new WebDriverWait(driver, new TimeSpan(0, 0, timeoutSec));
wait.Until(wd => js.ExecuteScript("return document.readyState").ToString() == "complete");
}
IWebElement page = null;
...
public void WaitForPageLoad()
{
if (page != null)
{
var waitForCurrentPageToStale = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
waitForCurrentPageToStale.Until(ExpectedConditions.StalenessOf(page));
}
var waitForDocumentReady = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
waitForDocumentReady.Until((wdriver) => (driver as IJavaScriptExecutor).ExecuteScript("return document.readyState").Equals("complete"));
page = driver.FindElement(By.TagName("html"));
}
public void waitForPageLoaded() {
ExpectedCondition<Boolean> expectation = new
ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver driver) {
return (((JavascriptExecutor) driver).executeScript("return document.readyState").toString().equals("complete")&&((Boolean)((JavascriptExecutor)driver).executeScript("return jQuery.active == 0")));
}
};
try {
Thread.sleep(100);
WebDriverWait waitForLoad = new WebDriverWait(driver, 30);
waitForLoad.until(expectation);
} catch (Throwable error) {
Assert.fail("Timeout waiting for Page Load Request to complete.");
}
}
private static boolean isloadComplete(WebDriver driver)
{
return ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("loaded")
|| ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("complete");
}
public boolean waitForJSandJQueryToLoad() {
WebDriverWait wait = new WebDriverWait(webDriver, 30);
// wait for jQuery to load
ExpectedCondition<Boolean> jQueryLoad = new ExpectedCondition<Boolean>() {
@Override
public Boolean apply(WebDriver driver) {
try {
Long r = (Long)((JavascriptExecutor)driver).executeScript("return $.active");
return r == 0;
} catch (Exception e) {
LOG.info("no jquery present");
return true;
}
}
};
// wait for Javascript to load
ExpectedCondition<Boolean> jsLoad = new ExpectedCondition<Boolean>() {
@Override
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor)driver).executeScript("return document.readyState")
.toString().equals("complete");
}
};
return wait.until(jQueryLoad) && wait.until(jsLoad);
}
WebDriverWait wait = new WebDriverWait(driver, 10);
wait.until(ExpectedConditions.presenceOfAllElementsLocated(By.xpath("//*")));
public static void UntilPageLoadComplete(IWebDriver driver, long timeoutInSeconds)
{
Until(driver, (d) =>
{
Boolean isPageLoaded = (Boolean)((IJavaScriptExecutor)driver).ExecuteScript("return document.readyState").Equals("complete");
if (!isPageLoaded) Console.WriteLine("Document is loading");
return isPageLoaded;
}, timeoutInSeconds);
}
public static void Until(IWebDriver driver, Func<IWebDriver, Boolean> waitCondition, long timeoutInSeconds)
{
WebDriverWait webDriverWait = new WebDriverWait(driver, TimeSpan.FromSeconds(timeoutInSeconds));
webDriverWait.Timeout = TimeSpan.FromSeconds(timeoutInSeconds);
try
{
webDriverWait.Until(waitCondition);
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
public static void WaitForElement(IWebDriver driver, By element)
{
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(20));
wait.Until(ExpectedConditions.ElementIsVisible(element));
}
WaitForElement(driver, By.ClassName("error-message"));