Android Retrofit:我在webservice上有四个分层的json格式，现在我想在本地获取这些数据

implementation 'com.squareup.retrofit2:retrofit:2.x.x'
implementation 'com.squareup.retrofit2:converter-gson:2.x.x'

public interface ApiService {
    @GET("your_endpoint")
    Call<YourDataModel> getData();
}

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("http://your_webservice_url.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

ApiService apiService = retrofit.create(ApiService.class);

Call<YourDataModel> call = apiService.getData();
call.enqueue(new Callback<YourDataModel>() {
    @Override
    public void onResponse(Call<YourDataModel> call, Response<YourDataModel> response) {
        if (response.isSuccessful()) {
            YourDataModel data = response.body();
            // 处理获取到的数据
        } else {
            // 处理请求失败的情况
        }
    }

    @Override
    public void onFailure(Call<YourDataModel> call, Throwable t) {
        // 处理请求失败的情况
    }
});