使用Selenium Java无法切换role="dialog"模态框，无法点击Cookie弹窗

打开ALDI在线商店页面后，无法点击Cookie弹窗，未发现iframe或alert窗口，尝试使用getWindowHandles也未成功。

测试代码 #

package org.leder;

import dev.failsafe.internal.util.Assert;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.Wait;
import org.openqa.selenium.support.ui.WebDriverWait;

import java.time.Duration;
import java.util.Iterator;
import java.util.Set;

public class MainTest {

    public static final String ALDI_ONLINESHOP_GUTES_FÜR_ALLE = "ALDI ONLINESHOP - Gutes für alle";

    @Test
    public void loginLogoutTest() {
        WebDriver driver = new ChromeDriver();

        Wait<WebDriver> wait = new WebDriverWait(driver, Duration.ofSeconds(15));

        driver.get("https://aldi-onlineshop.de");

        String title = driver.getTitle();

        System.out.println(title);

        Assert.isTrue(title.equals(ALDI_ONLINESHOP_GUTES_FÜR_ALLE), "Title is valid");

        wait.until(ExpectedConditions.visibilityOfElementLocated(By.cssSelector("data-testid='uc-default-wall'")));


        String parent = driver.getWindowHandle();

        Set<String> s = driver.getWindowHandles();


        // Now iterate using Iterator
        Iterator<String> I1 = s.iterator();

        driver.switchTo().window(I1.next());


        WebElement submitButton = driver.findElement(By.cssSelector("data-testid='uc-accept-all-button'"));


        submitButton.click();

        //switch to the parent window
        driver.switchTo().window(parent);

        WebElement loginMenu = driver.findElement(By.cssSelector("[data-attr-value='My Account']"));

        loginMenu.click();



        driver.quit();
    }
}

报错信息 #

1. CSS选择器错误：

org.openqa.selenium.JavascriptException: javascript error: {"status":32,"value":"An invalid or illegal selector was specified"}
  (Session info: chrome=123.0.6312.122)
Build info: version: '4.20.0', revision: '866c76ca80'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '6.6.26-1-MANJARO', java.version: '17.0.10'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Command: [4ffbffb982d379cb84581e3add5c448d, findElement {value=data-testid='uc-default-wall', using=css selector}]
Capabilities {acceptInsecureCerts: false, browserName: chrome, browserVersion: 123.0.6312.122, chrome: {chromedriverVersion: 123.0.6312.122 (31f8248cdd9..., userDataDir: /tmp/.org.chromium.Chromium...}, fedcm:accounts: true, goog:chromeOptions: {debuggerAddress: localhost:40857}, networkConnectionEnabled: false, pageLoadStrategy: normal, platformName: linux, proxy: Proxy(), se:cdp: ws://localhost:40857/devtoo..., se:cdpVersion: 123.0.6312.122, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify, webauthn:extension:credBlob: true, webauthn:extension:largeBlob: true, webauthn:extension:minPinLength: true, webauthn:extension:prf: true, webauthn:virtualAuthenticators: true}
Session ID: 4ffbffb982d379cb84581e3add5c448d

2. 调用alert方法报错：

org.openqa.selenium.NoAlertPresentException: no such alert

1. 修复CSS选择器格式 #

你使用的属性选择器语法错误，正确的CSS属性选择器需要用方括号包裹。修改两处选择器：

• 原弹窗选择器：By.cssSelector("data-testid='uc-default-wall'") → 修改为 By.cssSelector("[data-testid='uc-default-wall']")
• 原按钮选择器：By.cssSelector("data-testid='uc-accept-all-button'") → 修改为 By.cssSelector("[data-testid='uc-accept-all-button']")

2. 移除不必要的窗口切换逻辑 #

Cookie弹窗是页面内的普通模态元素，并非独立浏览器窗口，不需要调用getWindowHandles和窗口切换操作，直接定位元素即可。

3. 优化后的完整代码 #

package org.leder;

import dev.failsafe.internal.util.Assert;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;

import java.time.Duration;

public class MainTest {

    public static final String ALDI_ONLINESHOP_GUTES_FÜR_ALLE = "ALDI ONLINESHOP - Gutes für alle";

    @Test
    public void loginLogoutTest() {
        WebDriver driver = new ChromeDriver();
        WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));

        driver.get("https://aldi-onlineshop.de");

        String title = driver.getTitle();
        System.out.println(title);
        Assert.isTrue(title.equals(ALDI_ONLINESHOP_GUTES_FÜR_ALLE), "Title is valid");

        // 等待Cookie弹窗加载并点击接受按钮
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.cssSelector("[data-testid='uc-default-wall']")));
        WebElement acceptBtn = wait.until(ExpectedConditions.elementToBeClickable(By.cssSelector("[data-testid='uc-accept-all-button']")));
        acceptBtn.click();

        // 等待登录菜单可交互后点击
        WebElement loginMenu = wait.until(ExpectedConditions.elementToBeClickable(By.cssSelector("[data-attr-value='My Account']")));
        loginMenu.click();

        driver.quit();
    }
}

4. 关键说明 #

• 该Cookie弹窗既不是alert也不是iframe，属于页面内的普通DOM元素，直接通过CSS属性选择器定位即可。
• 使用elementToBeClickable等待元素可交互后再点击，避免因元素未完全渲染导致的点击失败。

内容的提问来源于stack exchange，提问作者Leder