主要代码：

Request request = builder.url("http://baidu.com).get().build();
Response response = client.newCall(request).execute();

Headers requestHeaders= response.networkResponse().request().headers();
logger.info("{}", requestHeaders);
Headers responseHeaders= response.networkResponse().headers();
logger.info("{}", responseHeaders);

详细代码：

import java.util.concurrent.TimeUnit;
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import okhttp3.Cookie;
import okhttp3.*;
import org.junit.Assert
import org.slf4j.Logger
import org.slf4j.LoggerFactory


    public final Logger logger = TestUtils.LOGGER;
    public final OkHttpClient client;
    public final Request.Builder builder;
    public final Cookie.Builder cookie;

    Test() {
        client = new OkHttpClient().newBuilder()
                    .connectTimeout(6, TimeUnit.SECONDS)
                    .readTimeout(6, TimeUnit.SECONDS)
                    .writeTimeout(6, TimeUnit.SECONDS)
                    .followRedirects(false)
                    .build();
        builder = new Request.Builder();

        builder.addHeader("Cache-Control", "no-cache");
　　　　 builder.addHeader("Accept-Encoding", "gzip, deflate, br");
        builder.addHeader("Connection", "keep-alive");
        builder.addHeader("Host", "bq-color.external-st.com");
        builder.addHeader("X-API-Login-Type", "1");
        builder.addHeader("User-Agent", "PostmanRuntime/7.26.8");
        builder.addHeader("Cookie", "xx=xx;xx=xx");
        logger.info("TestRunner init...");
    }

    @TestCase
    void test() {

        TestUtils.transactionBegin("test_tran");
        Request request = builder.url("http://baidu.com").get().build();
        Response response = client.newCall(request).execute();
        Headers requestHeaders= response.networkResponse().request().headers();
　　　　 logger.info("{}", requestHeaders);
　　　　 Headers responseHeaders= response.networkResponse().headers();
　　　　 logger.info("{}", responseHeaders);
        if(response.code() == 200){
            TestUtils.transactionSuccess("test_tran");
            logger.info("============= response successful, response code: {}, response body: {}",response.code(), response.body().string());
        }else{
            TestUtils.transactionFailure("test_tran");
            logger.error("============= response false, response code: {}, response body: {}",response.code());
        }
        response.close();
    }
}