java 获取src下的图片,Selenium：我如何获得图像的src？

I'm using Selenium (within PHPUnit) to test my web application. I would like to test whether a certain image which is present on the page really exists. More precisely, whether the image url returns 404 or not. In order to test that, I need to get the image url. Given the image locator, How do I get the value of its src attribute (its url)?

解决方案

Assuming that you have an image in a WebElement (lets say img), in Java world you can retrieve the link below

Editing the answer to clarify.

By Java world I mean Selenium 2.0 Java bindings. In Selenium 2.0 (of course if you are using webdriver) has a class called WebElement representing elements on the page. getAttribute is a selenium Method in Java binding.

String url = "http://www.my.website.com";

WebDriver driver = new FirefoxDriver();

driver.get(url);

WebElement img = driver.findElement(By.id("foo"));

String src = img.getAttribute("src");

Perhaps there is something similar in PHPUnit