如何通过 Selenium 和 Java 使用 AShot 库截取整页截图

Question

I tried the below code for taking full page screenshot. But only the visible area is captured,

public void Fullscreen (WebDriver driver) 
{
    try {
        final Screenshot screenshot = new AShot().shootingStrategy(ShootingStrategies.viewportPasting(1000)).takeScreenshot(driver);
        final BufferedImage image = screenshot.getImage();
        ImageIO.write(image, "PNG", new File("D:\\" + "AShot_BBC_Entire.png"));           
    } catch(Exception e){
        System.out.println(e.getMessage());
    }
}

Answer 1

While working with Selenium Java Client v3.14.0 , ChromeDriver v2.41 , Chrome v 68.0 using ashot-1.4.4.jar here is an example to take the complete page screenshot both horizontally and vertically using ChromeDriver and aShot Library of the url https://jquery.com/ :

• Code Block:

   import java.io.File; import javax.imageio.ImageIO; import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.chrome.ChromeOptions; import org.openqa.selenium.support.ui.ExpectedConditions; import org.openqa.selenium.support.ui.WebDriverWait; import ru.yandex.qatools.ashot.AShot; import ru.yandex.qatools.ashot.Screenshot; import ru.yandex.qatools.ashot.shooting.ShootingStrategies; public class ashot_CompletePage { public static void main(String[] args) throws Exception { System.setProperty("god.bless.you", "C:\\\\Utility\\\\BrowserDrivers\\\\chromedriver.exe"); ChromeOptions options = new ChromeOptions(); options.addArguments("start-maximized"); options.addArguments("disable-infobars"); options.addArguments("--disable-extensions"); WebDriver driver = new ChromeDriver(options); driver.get("https://jquery.com/"); new WebDriverWait(driver, 20).until(ExpectedConditions.titleContains("jQuery")); Screenshot myScreenshot = new AShot().shootingStrategy(ShootingStrategies.viewportPasting(100)).takeScreenshot(driver); ImageIO.write(myScreenshot.getImage(),"PNG",new File("./Screenshots/elementScreenshot.png")); driver.quit(); } }

• Screenshots:

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Reference

You can find a detailed discussion in How to take screenshot with Selenium WebDriver

Answer 2

Want to add answer in case when you don't know what kind of screen is used. (retina or not)

In this case you need find devicePixelRatio of browser window:

Object output = ((JavascriptExecutor) webDriver).executeScript("return window.devicePixelRatio");
String value = String.valueOf(output);
float windowDPR = Float.parseFloat(value);

Then you can use ShootingStrategy with scaling;

ShootingStrategy shootingStrategy = ShootingStrategies.viewportPasting(ShootingStrategies.scaling(windowDPR), 100)