改造2-是否可以获取我正在发送和接收的JSON的大小? [英] Retrofit 2 - Is it possible to get the size of a JSON that I'm sending and receiving?

问题描述

我需要在Android应用程序上构建流量监控器，并且需要存储通过翻新发送和接收的所有json的大小.使用日志我可以看到它的实际大小，但是我没有找到获取此信息的方法，因此可以保存它.我也无法获得response.raw，因为它已经被解析为我的课程了.有什么办法可以做到这一点?

I need to build a traffic monitor on my Android app, and I need to have stored the size of all json that I'm sending and receiving through retrofit. Using log I can see the actual size of it, but I haven't find a way to get this information so I could save it. I can't get the response.raw either since it's already been parsed to my classes. Is there any way to achieve that?

将va​​dkou答案标记为最佳答案.

Marked vadkou answer as the best one.

我没有创建新的拦截器，而是传递了lamda表达式:

Instead of creating a new interceptor, I passed the lamda expression:

 httpClient.addInterceptor( chain -> {
        okhttp3.Request request = chain.request();
        okhttp3.Response response = chain.proceed(request);
        if(request.body()!=null) {
            long requestLength = request.body().contentLength();
            Log.e("SERVICE GENERATOR", " CONTENT LENGTH" + requestLength);

        }
        long responseLength = response.body().contentLength();
        Log.e("SERVICE GENERATOR", " RESPONSE LENGTH" + responseLength);

        return response;

    });

推荐答案

Retrofit 2在内部使用OkHttp，您可以配置OkHttp，而不必像Vaiden的回答中那样通过在构建适配器时添加自定义拦截器来获取原始HTTP响应.如下:

Retrofit 2 uses OkHttp internally, and you could configure OkHttp without having to resort to getting raw HTTP response as in Vaiden's answer by adding a custom Interceptor while building an adapter as follows:

private Retrofit createRetrofit() {
       return new Retrofit.Builder()
            .baseUrl(END_POINT)
       //     .addConverterFactory(...)
       //     .addCallAdapterFactory(...)
            .client(createClient())
            .build();
}

private OkHttpClient createClient() {
        OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder();
        okHttpClientBuilder.addInterceptor(createYourInterceptor());
        return okHttpClientBuilder.build();
}

除其他外，Interceptor接口还允许您访问每个请求的请求正文.

The Interceptor interface among other things allows you to access request body for every request you make.

@Override
public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
            // do what you want with request.body().contentLength();
        return chain.proceed(request);
}

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