如何在jetty http客户端查看http流量？

import org.eclipse.jetty.client.HttpClient;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.client.api.Response;
import org.eclipse.jetty.client.util.InputStreamResponseListener;
import org.eclipse.jetty.client.util.StringContentProvider;
import org.eclipse.jetty.http.HttpMethod;
import org.eclipse.jetty.util.ssl.SslContextFactory;

public class JettyHttpClientExample {
    public static void main(String[] args) throws Exception {
        // 创建Jetty HTTP客户端实例
        HttpClient httpClient = new HttpClient(new SslContextFactory.Client());

        // 配置Jetty HTTP客户端
        httpClient.start();

        // 添加请求拦截器
        httpClient.getRequestListeners().add(new RequestInterceptor());

        // 创建HTTP请求
        Request request = httpClient.newRequest("http://example.com")
                .method(HttpMethod.GET)
                .header("Content-Type", "text/plain")
                .content(new StringContentProvider("Hello, Jetty!"));

        // 发送HTTP请求并获取响应
        Response response = request.send();

        // 处理响应
        InputStreamResponseListener listener = new InputStreamResponseListener();
        response.getContent(listener);

        // 等待响应完成
        listener.await();

        // 打印HTTP流量
        System.out.println("Request: " + request);
        System.out.println("Response: " + listener.getInputStream());

        // 关闭Jetty HTTP客户端
        httpClient.stop();
    }

    // 请求拦截器
    private static class RequestInterceptor implements org.eclipse.jetty.client.api.Request.Listener {
        @Override
        public void onBegin(Request request) {
            // 打印请求信息
            System.out.println("Request: " + request);
        }

        @Override
        public void onHeaders(Request request) {
            // 打印请求头信息
            System.out.println("Request Headers: " + request.getHeaders());
        }

        @Override
        public void onCommit(Request request) {
            // 请求提交时的处理
        }

        @Override
        public void onContent(Request request, Response response) {
            // 请求和响应内容的处理
        }

        @Override
        public void onSuccess(Request request, Response response) {
            // 请求成功时的处理
        }

        @Override
        public void onFailure(Request request, Throwable failure) {
            // 请求失败时的处理
        }
    }
}