java - 没有从 Retrofit 获得任何数据

Question

我对 Retrofit 调用有疑问。我想获取一些数据，只是为了测试目的，看看是否有任何结果，但如您所见，没有任何结果。我得到了 0、0.0、null 之类的数据。

JSON 响应

    {
  "page": 1,
  "total_results": 1295,
  "total_pages": 65,
  "results": [
    {
      "vote_count": 1669,
      "id": 10515,
      "video": false,
      "vote_average": 8,
      "title": "Castle in the Sky",
      "popularity": 15.853,
      "poster_path": "\/npOnzAbLh6VOIu3naU5QaEcTepo.jpg",
      "original_language": "ja",
      "original_title": "天空の城ラピュタ",
      "genre_ids": [
        12,
        14,
        16,
        28,
        10751,
        10749
      ],
      "backdrop_path": "\/fnMzL4G6HYilH1w1leFXOY5b29m.jpg",
      "adult": false,
      "overview": "A young boy and a girl with a magic crystal must race against pirates and foreign agents in a search for a legendary floating castle.",
      "release_date": "1986-08-02"
    },
    {
      "vote_count": 154,
      "id": 487672,
      "video": false,
      "vote_average": 6.7,
      "title": "Reign of the Supermen",
      "popularity": 15.461,
      "poster_path": "\/e9TzqscNRUaG8HqEP3K1jUvi8pC.jpg",
      "original_language": "en",
      "original_title": "Reign of the Supermen",
      "genre_ids": [
        16,
        28,
        878
      ],
      "backdrop_path": "\/cdCMUHWyXBOsbLL4dOEPdCEtwM4.jpg",
      "adult": false,
      "overview": "In the wake of The Death of Superman, the world is still mourning the loss of the Man of Steel following his fatal battle with the monster Doomsday. However, no sooner as his body been laid to rest than do four new bearers of the Superman shield come forward to take on the mantle. The Last Son of Krypton, Superboy, Steel, and the Cyborg Superman all attempt to fill the vacuum left by the world's greatest champion. Meanwhile, Superman's death has also signaled to the universe that Earth is vulnerable. Can these new Supermen and the rest of the heroes prove them wrong?",
      "release_date": "2019-01-13"
    }
  ]
}

接口(interface)调用

@GET("3/discover/movie?api_key=APIKEY&with_genres=27")
Call<model> getABC();

retrofit 电话

    String url = "https://api.themoviedb.org/";

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(url)
            .addConverterFactory(GsonConverterFactory.create())
            .build();

    apiCall api = retrofit.create(apiCall.class);

    Call<model> call = api.getABC();
    call.enqueue(new Callback<model>() {
        @Override
        public void onResponse(Call<model> call, Response<model> response) {
            if (!response.isSuccessful()){
            }
            List<model> list = Collections.singletonList(response.body());

            for (model model : list) {
                String content = "";
                content += model.getVote_count() + "\n";
                content += model.getVote_average() + "\n";
                content += model.getOverview() + "\n\n\n";

                System.out.println(content);
            }
        }

        @Override
        public void onFailure(Call<model> call, Throwable t) {

        }
    });
}

POJO

public class model {
@SerializedName("vote_count")
private int vote_count;
@SerializedName("vote_average")
private double vote_average;
@SerializedName("overview")
private String overview;

public int getVote_count() {
    return vote_count;
}

public double getVote_average() {
    return vote_average;
}

public String getOverview() {
    return overview;
}

我应该在代码中更改什么？我会感激每一个提示。我从通话中收到的代码是 200 - 所以通话成功，我的 pojo 类有问题吗？

*已编辑的 POJO

public class model {

@SerializedName("results")
@Expose
private List<movies> results;

public List<movies> getResults() {
    return results;
}

class movies {
    @SerializedName("vote_count")
    @Expose
    private Integer voteCount;
    @SerializedName("vote_average")
    @Expose
    private Double voteAverage;
    @SerializedName("overview")
    @Expose
    private String overview;
 }
}

编辑后的 retrofit 电话

public void onResponse(Call<model> call, Response<model> response) {
            if (!response.isSuccessful()){
            }
            List<model> list = Collections.singletonList(response.body());

            for (model model : list) {
                System.out.println(model.getResults());
            }
        }

这是我收到的部分。

com.example.x.model$movies@5f6763b, 
com.example.x.model$movies@e988158,
com.example.x.model$movies@6812b1,

为什么它没有得到正确的名字？

Answer 1

您的模型类应如下所示:

public class Model {
@SerializedName("page")
private int page;

@SerializedName("results")
private List<Result> results;

@SerializedName("total_results")
private int total;

@SerializedName("total_pages")
private int totalPages;

//.......getter setter methods

}


public class Result{
@SerializedName("vote_count")
private int voteCount;

@SerializedName("vote_average")
private double voteAverage;

@SerializedName("overview")
private String overView;

//.....other fields
//......getter setter methods
}

那么改造调用应该是这样的:

Call<model> call = api.getABC();
call.enqueue(new Callback<Model>() {
        @Override
        public void onResponse(Call<Model> call, Response<Model> response) {
            if (response.isSuccessful()) {
                List<Result> results=response.body().getResults();
                for(Result result:results){
                Log.d(TAG,"Result: "+result.getVoteCount())                    
               }



            }
        }

        @Override
        public void onFailure(Call<Model> call, Throwable t) {

        }
    });

快乐编码.... :)