问如何在android中读取Okhttp响应的状态代码

EN

public static InputStream postRequestWithPayload(String url, String mJsonReq) throws Exception {
         Response response;
         try{
            RequestBody body = RequestBody.create(JSON, mJsonReq);
            client.setConnectTimeout(20, TimeUnit.SECONDS); // connect timeout
            client.setReadTimeout(20, TimeUnit.SECONDS);    // socket timeout
            Request request = new Request.Builder()
                    .url(url)
                    .post(body)
                    .addHeader(AppConstants.OKHTTP_HEADER_GENERAL_USERNAME, AppController.getUserName())
                    .addHeader(AppConstants.OKHTTP_HEADER_GENERAL_AUTHTOLKEN, AppController.getToken().toString())
                            //.addHeader(AppConstants.OKHTTP_HEADER_GENERAL_APP_IDENTIFIER, AppConstants.OKHTTP_HEADER_GENERAL_APP_IDENTIFIER_VALUE)
                    .build();
            response = client.newCall(request).execute();

        }catch(Exception e){
            throw e;
         }
         return response.body().byteStream();
     }