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。我成功地能够执行像点击等操作，但无法使用Selenium驱动程序截图。因为这是自动化所必需的特性。我怎样才能做到这一点？

我使用了以下内容：

1. CEF应用 - 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(); 
    } 
} 

我正面临错误。

Answer 1

我使用了以下内容：

1. CEF应用 -
2. 硒罐子 - 通过CEF（https://bitbucket.org/chromiumembedded/cef/wiki/UsingChromeDriver.md链接） - 提供了示例应用程序硒的服务器独立-3.0.1
3. cef_binary_3。 2924.1564.g0ba0378_windows64_client
4. chromedriver

下面是代码：

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(); 
    } 
}