如何在Spring WebClient中验证请求url？

import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
import org.springframework.web.reactive.function.client.WebClient;

public class WebClientExample {
    public static void main(String[] args) {
        WebClient webClient = WebClient.builder()
                .filter(validateUrlFilter())
                .build();

        webClient.get()
                .uri("https://example.com/api")
                .retrieve()
                .bodyToMono(String.class)
                .subscribe(response -> {
                    // 处理响应
                });
    }

    private static ExchangeFilterFunction validateUrlFilter() {
        return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
            String url = clientRequest.url().toString();
            // 在这里进行URL验证逻辑
            if (!url.startsWith("https://example.com")) {
                throw new IllegalArgumentException("Invalid URL: " + url);
            }
            return clientRequest;
        });
    }
}