先接触的时候肯定先去网上找了找相关资料，大部分是Retrofit1.9,最新的版本都2了，所以看了这个帖子http://blog.csdn.net/u012301841/article/details/49685677；这里先感谢下；
例子的代码直接贴出来：首先是Retrofit的初始化这里使用Gson解析的，所以：
private static Retrofit initRetrofit() {
OkHttpClient httpClient = new OkHttpClient();
if (BuildConfig.DEBUG) {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
httpClient = new OkHttpClient.Builder().addInterceptor(logging).build();
}
Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd").create();
return new Retrofit.Builder().baseUrl(API.BASEURL).addConverterFactory(GsonConverterFactory.create(gson))
.client(httpClient).build();
}
接着就是常规的做法：
public interface gitapi {
@GET("/users/{user}")
Call<User> getFeed(@Path("user")String user);
}
Retrofit retrofit = initRetrofit();
gitapi api = retrofit.create(gitapi.class);
api.getFeed(user).enqueue(new Callback<User>() {
@Override
public void onResponse(Call<User> call, Response<User> response) {
Log.i("MainActivity", response.body().getName());
}
@Override
public void onFailure(Call<User> call, Throwable t) {
}
});
原文：http://www.cnblogs.com/fightzhao/p/5375386.html