Android Retrofit通过OkHttp添加Interceptor拦截器设置Get请求公共参数

pubic Retrofit getRetrofit() {
    OkHttpClient httpClient = new OkHttpClient.Builder()
            .addInterceptor(new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException {
                    Request request = chain.request();
                    if ("GET".equals(request.method())) {
                        HttpUrl httpUrl = request.url().newBuilder()
                                .addQueryParameter("version", "1.0.0")
                                .addQueryParameter("appkey","yeyuanxinyi")
                                .addQueryParameter("timestamp", String.valueOf(System.currentTimeMillis()))
                                .build();
                        request = request.newBuilder().url(httpUrl).build();
                    }
                    return chain.proceed(request);
                }
            })
            .build();
    return new Retrofit.Builder()
            .client(httpClient)
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
            .baseUrl(getBaseUrl())
            .build();
}