如何用Selenium Webdriver Java处理fancybox框架中src属性的表单？

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

System.setProperty("webdriver.chrome.driver", "path/to/chromedriver");
WebDriver driver = new ChromeDriver();

driver.get("https://example.com");

WebElement formElement = driver.findElement(By.id("formId"));

String srcValue = formElement.getAttribute("src");

System.out.println("src属性值为：" + srcValue);