是否可以使用Selenium WebDriver进行截图?
(注:不含硒遥控器)
是否可以使用Selenium WebDriver进行截图?
(注:不含硒遥控器)
当前回答
PowerShell
Set-Location PATH:\to\selenium
Add-Type -Path "Selenium.WebDriverBackedSelenium.dll"
Add-Type -Path "ThoughtWorks.Selenium.Core.dll"
Add-Type -Path "WebDriver.dll"
Add-Type -Path "WebDriver.Support.dll"
$driver = New-Object OpenQA.Selenium.PhantomJS.PhantomJSDriver
$driver.Navigate().GoToUrl("https://www.google.co.uk/")
# Take a screenshot and save it to filename
$filename = Join-Path (Get-Location).Path "01_GoogleLandingPage.png"
$screenshot = $driver.GetScreenshot()
$screenshot.SaveAsFile($filename, [System.Drawing.Imaging.ImageFormat]::Png)
其他司机……
$driver = New-Object OpenQA.Selenium.Chrome.ChromeDriver
$driver = New-Object OpenQA.Selenium.Firefox.FirefoxDriver
$driver = New-Object OpenQA.Selenium.IE.InternetExplorerDriver
$driver = New-Object OpenQA.Selenium.Opera.OperaDriver
其他回答
Java
是的,这是可能的。下面以Java为例:
WebDriver driver = new FirefoxDriver();
driver.get("http://www.google.com/");
File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
// Now you can do whatever you need to do with it, for example copy somewhere
FileUtils.copyFile(scrFile, new File("c:\\tmp\\screenshot.png"));
Python
每个WebDriver都有一个. save_截图(filename)方法。所以对于Firefox,它可以这样使用:
from selenium import webdriver
browser = webdriver.Firefox()
browser.get('http://www.google.com/')
browser.save_screenshot('screenie.png')
令人困惑的是,.get_screenshot_as_file(filename)方法也存在,它做同样的事情。
还有一些方法:.get_screenshot_as_base64()(用于嵌入HTML)和.get_screenshot_as_png()(用于检索二进制数据)。
注意,WebElements有一个.截图()方法,它的工作原理类似,但只捕获所选元素。
Ruby(黄瓜)
After do |scenario|
if(scenario.failed?)
puts "after step is executed"
end
time = Time.now.strftime('%a_%e_%Y_%l_%m_%p_%M')
file_path = File.expand_path(File.dirname(__FILE__) + '/../../../../../mlife_screens_shot')+'/'+time +'.png'
page.driver.browser.save_screenshot file_path
end
Given /^snapshot$/ do
time = Time.now.strftime('%a_%e_%Y_%l_%m_%p_%M')
file_path = File.expand_path(File.dirname(__FILE__) + '/../../../../../mlife_screens_shot')+'/'+time +'.png'
page.driver.browser.save_screenshot file_path
end
Java
在附加TestName和Timestamp的情况下为Selenium中的失败捕获屏幕截图的方法。
public class Screenshot{
final static String ESCAPE_PROPERTY = "org.uncommons.reportng.escape-output";
public static String imgname = null;
/*
* Method to Capture Screenshot for the failures in Selenium with TestName and Timestamp appended.
*/
public static void getSnapShot(WebDriver wb, String testcaseName) throws Exception {
try {
String imgpath = System.getProperty("user.dir").concat("\\Screenshot\\"+testcaseName);
File f = new File(imgpath);
if(!f.exists()) {
f.mkdir();
}
Date d = new Date();
SimpleDateFormat sd = new SimpleDateFormat("dd_MM_yy_HH_mm_ss_a");
String timestamp = sd.format(d);
imgname = imgpath + "\\" + timestamp + ".png";
// Snapshot code
TakesScreenshot snpobj = ((TakesScreenshot)wb);
File srcfile = snpobj.getScreenshotAs(OutputType.FILE);
File destFile = new File(imgname);
FileUtils.copyFile(srcfile, destFile);
}
catch(Exception e) {
e.getMessage();
}
}
是的,可以通过Selenium WebDriver来截屏。我目前使用Chrome驱动来抓取网站图片。请参考以下方法captureScreenshot()。
您还可以添加对web驱动程序的限制,例如
使用无头版的网页浏览器 当页面加载时禁用通知 启动全屏等。
如果一个网站配备了警报框,你的网页驱动程序将无法捕捉屏幕截图,因为异常将被抛出。在这种情况下,你需要关闭警告框,然后获取截图。下面的代码片段关闭警报框。
public void captureScreenshot() throws InterruptedException, IOException {
System.out.println("Creating Chrome Driver");
// Set Chrome Driver
System.setProperty("webdriver.chrome.driver", "D:\\chromedriver.exe");
// Add arguments to Chrome Options
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--headless");
chromeOptions.addArguments("start-maximized");
chromeOptions.addArguments("--disable-gpu");
chromeOptions.addArguments("--start-fullscreen");
chromeOptions.addArguments("--disable-extensions");
chromeOptions.addArguments("--disable-popup-blocking");
chromeOptions.addArguments("--disable-notifications");
chromeOptions.addArguments("--window-size=1920,1080");
chromeOptions.addArguments("--no-sandbox");
chromeOptions.addArguments("--dns-prefetch-disable");
chromeOptions.addArguments("enable-automation");
chromeOptions.addArguments("disable-features=NetworkService");
WebDriver driver = new ChromeDriver(chromeOptions);
driver.get("https://www.google.com");
System.out.println("Wait a bit for the page to render");
TimeUnit.SECONDS.sleep(5);
System.out.println("Taking Screenshot");
File outputFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
String imageDetails = "D:\\Images";
File screenShot = new File(imageDetails).getAbsoluteFile();
FileUtils.copyFile(outputFile, screenShot);
System.out.println("Screenshot saved: {}" + imageDetails);
}
}
为了接受警报框和获取截图:
String alertText = alert.getText();
System.out.println("ERROR: (ALERT BOX DETECTED) - ALERT MSG : " + alertText);
alert.accept();
File outputFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
String imageDetails = "D://Images"
File screenShot = new File(imageDetails).getAbsoluteFile();
FileUtils.copyFile(outputFile, screenShot);
System.out.println("Screenshot saved: {}" + imageDetails);
driver.close();