如何在appium中找到移动测试的当前url

import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.ios.IOSDriver;
import org.openqa.selenium.remote.DesiredCapabilities;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.Set;

public class AppiumURLTest {
    public static void main(String[] args) throws MalformedURLException {
        // 设置Appium服务器的URL
        URL appiumServerURL = new URL("http://127.0.0.1:4723/wd/hub");

        // 设置Desired Capabilities
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability("platformName", "Android");
        capabilities.setCapability("deviceName", "Android Emulator");
        capabilities.setCapability("appPackage", "com.example.app");
        capabilities.setCapability("appActivity", ".MainActivity");

        // 创建Appium驱动
        AppiumDriver driver = new AndroidDriver(appiumServerURL, capabilities);

        // 获取所有上下文
        Set<String> contexts = driver.getContextHandles();

        // 遍历上下文列表，找到包含URL信息的上下文
        for (String context : contexts) {
            if (context.contains("WEBVIEW")) {
                // 切换到WebView上下文
                driver.context(context);

                // 获取当前URL
                String currentURL = driver.getCurrentUrl();
                System.out.println("当前URL: " + currentURL);

                // 切换回原始上下文
                driver.context("NATIVE_APP");
                break;
            }
        }

        // 关闭驱动
        driver.quit();
    }
}