使用ExchangeFilterFunction发送之前，Spring WebClient无法读取请求正文

import org.springframework.web.reactive.function.client.ClientRequest;
import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
import org.springframework.web.reactive.function.client.ExchangeFunction;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;

public class WebClientExample {
    public static void main(String[] args) {
        WebClient webClient = WebClient.builder()
                .filter(logRequest()) // 添加自定义的ExchangeFilterFunction
                .build();

        webClient.get()
                .uri("https://example.com")
                .retrieve()
                .bodyToMono(String.class)
                .subscribe(System.out::println);
    }

    private static ExchangeFilterFunction logRequest() {
        return ExchangeFilterFunction.ofRequestProcessor(clientRequest -> {
            System.out.println("Request: " + clientRequest.method() + " " + clientRequest.url());
            clientRequest.headers().forEach((name, values) -> values.forEach(value -> System.out.println(name + ": " + value)));
            return Mono.just(clientRequest);
        });
    }
}