RxJava+retrofit+OKhttp网络请求

public class RetrofitUtils {
    private Retrofit retrofit;

    private RetrofitUtils() {
        HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
            @Override
            public void log(String message) {
                Log.e("TAG", "log: &&&"+message);
            }
        });
        httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(httpLoggingInterceptor)
                .build();
        //建立retrofit对象
        retrofit = new Retrofit.Builder()
                .baseUrl(Constant.BASE_URL)
                .client(client)
                .addConverterFactory(GsonConverterFactory.create())//默认gson解析
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())//使用RxJava2的适配器
                .build();
    }
    //单列模式
    public static RetrofitUtils INSTANCE;

    public static RetrofitUtils getInstance() {
        if (INSTANCE == null) {
            synchronized (RetrofitUtils.class) {
                if (INSTANCE == null) {
                    INSTANCE = new RetrofitUtils();
                }
            }
        }
        return INSTANCE;
    }

    //创建方法,供调用
    public RetrofitApi getApi() {
        //获取接口
        RetrofitApi retrofitApi = retrofit.create(RetrofitApi.class);
        return retrofitApi;
    }
} 

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RetrofitApi：

public interface RetrofitApi {
  @GET("searchProducts?source=android")
  Observable<SouSuoBean> getGreen(@Query("keywords")String keywords); 
}

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Content；

public class Constant {
    public static final String BASE_URL="https://www.zhaoapi.cn/product/";

}