无法使用 Selenium 截取 CEF 应用程序的屏幕截图

Question

我正在使用 Selenium 来自动化 CEF 应用程序。我能够成功执行点击等操作。但无法使用 Selenium 驱动程序截取屏幕截图。因为它是自动化非常需要的功能。我该怎么做？

我正在使用以下内容：

1. CEF 申请 - sample application provided by CEF
2. selenium jar - selenium-server-standalone-3.0.1
3. cef_binary_3.2924.1564.g0ba0378_windows64_client
4. chromedriver

找到下面的代码：

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.OutputType;

public class Example  {
    public static void main(String[] args) {
        // Path to the ChromeDriver executable.
        System.setProperty("webdriver.chrome.driver", "D:/CEFTesting/chromedriver.exe");
        // Path to the CEF executable.
        ChromeOptions options = new ChromeOptions();

         options.setBinary("D:/CEFTesting/cef_binary_3.2924.1564.g0ba0378_windows64_client/Release/cefclient.exe");

        WebDriver driver = new ChromeDriver(options);
        driver.get("http://www.google.com/xhtml");
        sleep(3000);  // Let the user actually see something!
        WebElement searchBox = driver.findElement(By.name("q"));
        searchBox.sendKeys("ChromeDriver");
        searchBox.submit();
        sleep(5000);  // Let the user actually see something!

        String screenshotBase64 = ((TakesScreenshot) driver).getScreenshotAs(OutputType.BASE64);
        System.out.println(screenshotBase64);
        sleep(5000);  // Let the user actually see something!
        driver.quit();
    }
}

我遇到了错误。

Answer 1

我正在使用以下内容：

1. CEF 应用程序 - CEF 提供的示例应用程序（链接 - https://bitbucket.org/chromiumembedded/cef/wiki/UsingChromeDriver.md）
2. 硒罐 - selenium-server-standalone-3.0.1
3. cef_binary_3.2924.1564.g0ba0378_windows64_client
4. chromedriver

代码如下：

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.OutputType;

public class Example  {
    public static void main(String[] args) {
        // Path to the ChromeDriver executable.
        System.setProperty("webdriver.chrome.driver", "D:/CEFTesting/chromedriver.exe");
        // Path to the CEF executable.
        ChromeOptions options = new ChromeOptions();

        options.setBinary("D:/CEFTesting/cef_binary_3.2924.1564.g0ba0378_windows64_client/Release/cefclient.exe");

        WebDriver driver = new ChromeDriver(options);
        driver.get("http://www.google.com/xhtml");
        sleep(3000);  // Let the user actually see something!
        WebElement searchBox = driver.findElement(By.name("q"));
        searchBox.sendKeys("ChromeDriver");
        searchBox.submit();
        sleep(5000);  // Let the user actually see something!

        String screenshotBase64 = ((TakesScreenshot) driver).getScreenshotAs(OutputType.BASE64);
        System.out.println(screenshotBase64);
        sleep(5000);  // Let the user actually see something!
        driver.quit();
    }
}