使用带有Java和Chrome的WebDriver Selenium 3，无法将sendKeys放入ebay用户名字段

Question

I have been unable to sendKeys text into the username and password field on ebay.

Here is the code:

    WebDriver driver = null;
    System.setProperty("webdriver.chrome.driver", "/usr/local/bin/chromedriver");
    driver = new ChromeDriver();
    driver.get("http://www.ebay.co.uk");

    WebElement myEbay = driver.findElement(By.linkText("My eBay"));
    myEbay.click();

    WebElement signInForm = driver.findElement(By.id("SignInForm"));

    if (signInForm.isDisplayed())
        System.out.println("Sign in form is displayed");

    WebElement username;

    username = driver.findElement(By.cssSelector("input[placeholder=\"Email or username\"]"));

It manages to find the My Ebay link, and verifies that the sign in form exists but the the username and password fields id's change after every refresh of the page.

The username cssSelector seems to be the problem??

EDIT: I have been successful using XPath but this excercise was to make the cssSelector work as there is no reason in theory why it shouldn't!

Answer 1

Select all inputs as a list and search for the right one:

// fld seems to be the class of the input field but looking at all input elements should work too
List<WebElement> inputs = driver.findElements(By.className("fld")); 
for (WebElement input: inputs) { 
    if (inputs.getAttribute("placeholder") == "Email or username") {
        // ...
    }
}

Answer 2

if the username and password webelements changes frequently find div section in the page using xpath and get the exact xpath of username weblement.

Hope this help..

Answer 3

I have replaced the cssSelector locator with xpath and it is working fine with absolute xpath. Here is the modified code:

 WebDriver driver = null;
        System.setProperty("webdriver.chrome.driver", "C:\\Users\\vikas\\workspaceNeon\\Eclipse Soft\\chromedriver.exe");
        driver = new ChromeDriver();
        driver.get("http://www.ebay.co.uk");

        WebElement myEbay = driver.findElement(By.linkText("My eBay"));
        myEbay.click();

        WebElement signInForm = driver.findElement(By.id("SignInForm"));

        if (signInForm.isDisplayed())
            System.out.println("Sign in form is displayed");

       driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);

       WebElement username = driver.findElement(By.xpath("html/body/div[4]/div/div/div/div[5]/div/div[1]/div/div[1]/div[1]/div[2]/div/span/form/div[1]/div[5]/div/div[4]/span[2]/input"));

       username.sendKeys("Vikas");