1､下载指定版本Driver驱动

Firefox浏览器驱动：geckodriver
Chrome浏览器驱动：ChromeDriver
IE浏览器驱动：IEDriverServer
Edge浏览器驱动：MicrosoftWebDriver
Opera浏览器驱动：operadriver
PhantomJS浏览器驱动：phantomjs

2､安装引用Selenium

1) 下载Jar包

下载地址：http://docs.seleniumhq.org/download/

2) Maven安装

<!-- selenium-java -->
<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-java</artifactId>
    <version>3.4.0</version>
</dependency>

2､完整页面截图

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import javax.imageio.ImageIO;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.Test;
import ru.yandex.qatools.ashot.AShot;
import ru.yandex.qatools.ashot.Screenshot;
import ru.yandex.qatools.ashot.shooting.ShootingStrategies;
public class EntireScreenshot {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
    WebDriver driver;
                System.setProperty("webdriver.chrome.driver", ".\\Driver\\chromedriver.exe");
            driver=new ChromeDriver();
            driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
            driver.manage().window().maximize();
driver.get("https://www.cjavapy.com/article/411/");
          / /take screenshot of the entire page
            Screenshot screenshot=new AShot().shootingStrategy(ShootingStrategies.viewportPasting(1000)).takeScreenshot(driver);
            try {
                ImageIO.write(screenshot.getImage(),"PNG",new File("path of the file"));
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            driver.quit();
        }
    }

3､载取网页长图

改变窗口尺寸来截长图

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import javax.imageio.ImageIO;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.Test;
import ru.yandex.qatools.ashot.AShot;
import ru.yandex.qatools.ashot.Screenshot;
import ru.yandex.qatools.ashot.shooting.ShootingStrategies;
public class EntireScreenshot {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		WebDriver driver;
		System.setProperty("webdriver.chrome.driver", ".\\Driver\\chromedriver.exe");
		driver = new ChromeDriver();
		try {
			driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
			driver.manage().window().maximize();
			driver.get("https://www.cjavapy.com/article/411/");
                        //等待页面加载完成
			new WebDriverWait(driver, 300).until(driver -> ((JavascriptExecutor) driver)
					.executeScript("return document.readyState").equals("complete"));
			JavascriptExecutor jexec = (JavascriptExecutor) driver;
			int width = (int) jexec.executeScript("return document.body.scrollWidth");
			int height = (int) jexec.executeScript("return document.body.scrollHeight");
                        //设置浏览窗口大小
			driver.manage().window().setSize(new Dimension(width, height));
			Screenshot screenshot = new AShot().coordsProvider(new WebDriverCoordsProvider()).takeScreenshot(driver);
			BufferedImage image = screenshot.getImage();
			ImageIO.write(image, "PNG", new File("D:\\temp\\" + "AShot_BBC_Entire.png"));
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		driver.quit();
	}
}

Maven引用依赖(ashot)：

<dependency>
    <groupId>ru.yandex.qatools.ashot</groupId>
    <artifactId>ashot</artifactId>
    <version>1.5.4</version>
</dependency>

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