如何让Selenium 2.0等待页面加载?
当前回答
您可以尝试这段代码,让页面完全加载,直到找到元素为止。
public void waitForBrowserToLoadCompletely() {
String state = null;
String oldstate = null;
try {
System.out.print("Waiting for browser loading to complete");
int i = 0;
while (i < 5) {
Thread.sleep(1000);
state = ((JavascriptExecutor) driver).executeScript("return document.readyState;").toString();
System.out.print("." + Character.toUpperCase(state.charAt(0)) + ".");
if (state.equals("interactive") || state.equals("loading"))
break;
/*
* If browser in 'complete' state since last X seconds. Return.
*/
if (i == 1 && state.equals("complete")) {
System.out.println();
return;
}
i++;
}
i = 0;
oldstate = null;
Thread.sleep(2000);
/*
* Now wait for state to become complete
*/
while (true) {
state = ((JavascriptExecutor) driver).executeScript("return document.readyState;").toString();
System.out.print("." + state.charAt(0) + ".");
if (state.equals("complete"))
break;
if (state.equals(oldstate))
i++;
else
i = 0;
/*
* If browser state is same (loading/interactive) since last 60
* secs. Refresh the page.
*/
if (i == 15 && state.equals("loading")) {
System.out.println("\nBrowser in " + state + " state since last 60 secs. So refreshing browser.");
driver.navigate().refresh();
System.out.print("Waiting for browser loading to complete");
i = 0;
} else if (i == 6 && state.equals("interactive")) {
System.out.println(
"\nBrowser in " + state + " state since last 30 secs. So starting with execution.");
return;
}
Thread.sleep(4000);
oldstate = state;
}
System.out.println();
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
其他回答
driver.asserts().assertElementFound("Page was not loaded",
By.xpath("//div[@id='actionsContainer']"),Constants.LOOKUP_TIMEOUT);
你可以使用下面的代码片段来加载页面:
IWait wait = new OpenQA.Selenium.Support.UI.WebDriverWait(driver,TimeSpan.FromSeconds(30.00));
wait.Until(driver1 => ((IJavaScriptExecutor)driver).ExecuteScript("return document.readyState").Equals("complete"));
或者你可以使用waiter的任何元素被加载,并成为可见/可点击的页面上,最有可能的是,这将是在加载结束时加载,如:
Wait.Until(ExpectedConditions.ElementToBeClickable(By.XPath(xpathOfElement));
var element = GlobalDriver.FindElement(By.XPath(xpathOfElement));
var isSucceededed = element != null;
使用这个函数
public void waitForPageLoad(ChromeDriver d){
String s="";
while(!s.equals("complete")){
s=(String) d.executeScript("return document.readyState");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
使用下面的代码,它是非常容易和简单的页面加载。
public void PageLoad(IWebDriver driver, By by)
{
try
{
Console.WriteLine("PageLoad" + by);
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30));
wait.Until(ExpectedConditions.ElementIsVisible(by));
wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30)); // 30 seconds wait until element not found.
wait.Until(ExpectedConditions.ElementToBeClickable(by));
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Assert.Fail("Element not found!")
}
}
我希望这对你有所帮助。
SeleniumWaiter:
import com.google.common.base.Function;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.WebDriverWait;
public class SeleniumWaiter {
private WebDriver driver;
public SeleniumWaiter(WebDriver driver) {
this.driver = driver;
}
public WebElement waitForMe(By locatorname, int timeout){
WebDriverWait wait = new WebDriverWait(driver, timeout);
return wait.until(SeleniumWaiter.presenceOfElementLocated(locatorname));
}
public static Function<WebDriver, WebElement> presenceOfElementLocated(final By locator) {
// TODO Auto-generated method stub
return new Function<WebDriver, WebElement>() {
@Override
public WebElement apply(WebDriver driver) {
return driver.findElement(locator);
}
};
}
}
对你来说:
_waiter = new SeleniumWaiter(_driver);
try {
_waiter.waitForMe(By.xpath("//..."), 10);
}
catch (Exception e) {
// Error
}
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