public Response getHttpService(final String url, final Map<String, Object> headers) throws IOException {
        Request.Builder requestBuilder = new Request.Builder().url(url).addHeader(Constants.LOCAL_KEY, localKey);
        if (!CollectionUtils.isEmpty(headers)) {
            headers.forEach((key, value) -> requestBuilder.addHeader(key, String.valueOf(value)));
        }
        Request request = requestBuilder.build();
        return client.newCall(request).execute();
    }
Send a get http request to http service with headers.

@param url     url
@param headers headers
@return response
@throws IOException IO exception
shenyu-integrated-test/shenyu-integrated-test-common/src/main/java/org/apache/shenyu/integratedtest/common/helper/HttpHelper.java