使用selenium在java中获取隐藏元素给出错误

Question

当我选择隐藏的值时，其显示错误为：

线程“主”org.openqa.selenium.NoSuchElementException 中的异常： 无法定位元素：{“方法”：“部分链接 文本","选择器":"车辆制造"}

这是我的代码：

package section5.advWays.locatingObjects;
    import org.openqa.selenium.By;
    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.firefox.FirefoxDriver;
    import org.openqa.selenium.support.ui.Select;   

public class CusXPathUsingAtt1 {
    public static void main(String[] args) throws InterruptedException {
        // TODO Auto-generated method stub
        WebDriver wd = new FirefoxDriver();
        wd.manage().window().maximize();
        Thread.sleep(5000);         wd.get("http://www.tirerack.com/content/tirerack/desktop/en/homepage.html");
        Select SelectMakedropdown = new Select(wd.findElement(By.id("vehicle-make")));      
        SelectMakedropdown.selectByVisibleText("BMW");
        Select YearSelectDropdown = new Select(wd.findElement(By.id("vehicle-year")));
        YearSelectDropdown.selectByVisibleText("2011");
        Select VehicleSelectDropdown = new Select(wd.findElement(By.id("vehicle-model")));
        VehicleSelectDropdown.selectByVisibleText("228i xDrive Coupe");
    }
    }

如何使用 selenium webdriver 选择那些下拉菜单？

Answer 1

有两件事：

1. 我发现您首先需要单击一个元素，否则选择菜单将无法打开。因此，在我的代码中，我首先单击元素以启用选择菜单。
2. 还有一些元素不是现成的。例如，除非输入 Make，否则不会启用 Year。

请看下面的代码：

WebDriver driver= new FirefoxDriver();
driver.get("http://www.tirerack.com/content/tirerack/desktop/en/homepage.html");
WebDriverWait wait = new WebDriverWait(driver, 30);

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Make')]")));
driver.findElement(By.xpath("//div[contains(text(),'Select Make')]")).click();
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-make")));
Select SelectMakedropdown = new Select(driver.findElement(By.id("vehicle-make")));      
SelectMakedropdown.selectByVisibleText("BMW");

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Year')]")));
driver.findElement(By.xpath("//div[contains(text(),'Select Year')]")).click();
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-year")));
Select YearSelectDropdown = new Select(driver.findElement(By.id("vehicle-year")));
YearSelectDropdown.selectByVisibleText("2011");

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Model')]")));
driver.findElement(By.xpath("//div[contains(text(),'Select Model')]")).click();
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-model")));
Select VehicleSelectDropdown = new Select(driver.findElement(By.id("vehicle-model")));
VehicleSelectDropdown.selectByVisibleText("128i Cabriolet Base Model");

driver.quit();

火狐更新：

我尝试了很多，但我仍然无法确定为什么选择在 Firefox 中不起作用。但我仍然设法想出一个解决方法来做必要的事情。在这里，我使用的点击次数更少，而您的应用程序支持的功能更多。

WebDriver driver= new FirefoxDriver();
driver.get("http://www.tirerack.com/content/tirerack/desktop/en/homepage.html");
WebDriverWait wait = new WebDriverWait(driver, 30);
JavascriptExecutor executor = (JavascriptExecutor) driver;

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Make')]")));
WebElement we1 = driver.findElement(By.xpath("//div[contains(text(),'Select Make')]"));
executor.executeScript("arguments[0].click();", we1);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-make")));
WebElement SelectMakedropdown = driver.findElement(By.id("vehicle-make"));      
SelectMakedropdown.sendKeys("BMW");
SelectMakedropdown.sendKeys(Keys.ENTER);
Thread.sleep(1000);

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Year')]")));
WebElement we2 = driver.findElement(By.xpath("//div[contains(text(),'Select Year')]"));
executor.executeScript("arguments[0].click();", we2);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-year")));
WebElement YearSelectDropdown = driver.findElement(By.id("vehicle-year"));
YearSelectDropdown.sendKeys("2011");
YearSelectDropdown.sendKeys(Keys.ENTER);
Thread.sleep(1000);

wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'Select Model')]")));
WebElement we3 = driver.findElement(By.xpath("//div[contains(text(),'Select Model')]"));
executor.executeScript("arguments[0].click();", we3);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("vehicle-model")));
WebElement VehicleSelectDropdown = driver.findElement(By.id("vehicle-model"));
VehicleSelectDropdown.sendKeys("128i Cabriolet Base Model");
VehicleSelectDropdown.sendKeys(Keys.ENTER);

Answer 2

似乎页面需要先点击下拉菜单，试试这个代码：

    wd.findElement(By.xpath("//*[@id='shopByVehicle-search-change']/div[1]/div[1]")).click();

     Select SelectMakedropdown = new Select(wd.findElement(By.id("vehicle-make")));     

     SelectMakedropdown.selectByVisibleText("BMW");

上面肯定会运行。