使用Java 8中提供的CompletableFuture来实现异步等待多个Web元素的功能。下面是一个可能的解决方案

WaitForMultipleElementsAsync.java

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.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;

public class WaitForMultipleElementsAsync {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        WebDriver driver = new ChromeDriver();
        driver.get("https://www.example.com");

        // 创建两个CompletableFuture对象
        CompletableFuture<WebElement> elem1Future = CompletableFuture.supplyAsync(() -> waitForElement(driver, By.cssSelector("#elem1")));
        CompletableFuture<WebElement> elem2Future = CompletableFuture.supplyAsync(() -> waitForElement(driver, By.cssSelector("#elem2")));

        // 等待任意一个元素被找到
        CompletableFuture.anyOf(elem1Future, elem2Future).join();

        // 如果elem1被找到，则取消elem2的执行
        if (elem1Future.isDone() && !elem2Future.isDone()) {
            elem2Future.cancel(true);
            System.out.println("elem1 found");
        }

        // 如果elem2被找到，则取消elem1的执行
        if (elem2Future.isDone() && !elem1Future.isDone()) {
            elem1Future.cancel(true);
            System.out.println("elem2 found");
        }

        // 继续执行您的代码
        System.out.println("next step");

        // 关闭浏览器
        driver.quit();
    }

    private static WebElement waitForElement(WebDriver driver, By locator) {
        WebDriverWait wait = new WebDriverWait(driver, 10);
        return wait.until(ExpectedConditions.presenceOfElementLocated(locator));
    }
}