沒有從翻新中獲得任何數據

Question

我對翻新電話有問題。 我想獲取一些數據，僅用於測試目的，看是否有任何東西，但是如您所見，什么也沒有。 我正在獲取0、0.0，null之類的數據。

傑森回應

    {
  "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"
    }
  ]
}

接口調用

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

改造電話

    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;
}

我應該在代碼中更改什么？ 我將不勝感激。 我從調用中收到的代碼是200-因此調用成功，我的pojo類是否有東西？

*編輯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;
 }
}

編輯改造電話

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());
            }
        }

這是我收到的部分。

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

為什么沒有正確命名？

Answer 1

您的Model類應如下所示：

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
}

然后，改造調用應如下所示：

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) {

        }
    });

快樂的編碼.... :)

Answer 2

使用此站點在Java中生成正確的響應類

響應類如下所示：

public class BasicResponse implements Serializable
{

@SerializedName("page")
@Expose
private long page;
@SerializedName("total_results")
@Expose
private long totalResults;
@SerializedName("total_pages")
@Expose
private long totalPages;
@SerializedName("results")
@Expose
private List<Result> results = null;
private final static long serialVersionUID = 8749582078961182468L;

public long getPage() {
return page;
}

public void setPage(long page) {
this.page = page;
}

public long getTotalResults() {
return totalResults;
}

public void setTotalResults(long totalResults) {
this.totalResults = totalResults;
}

public long getTotalPages() {
return totalPages;
}

public void setTotalPages(long totalPages) {
this.totalPages = totalPages;
}

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

public void setResults(List<Result> results) {
this.results = results;
}

}
//-----------------------------------com.example.Result.java--------------

package com.example;

import java.io.Serializable;
import java.util.List;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Result implements Serializable
{

@SerializedName("vote_count")
@Expose
private long voteCount;
@SerializedName("id")
@Expose
private long id;
@SerializedName("video")
@Expose
private boolean video;
@SerializedName("vote_average")
@Expose
private double voteAverage;
@SerializedName("title")
@Expose
private String title;
@SerializedName("popularity")
@Expose
private double popularity;
@SerializedName("poster_path")
@Expose
private String posterPath;
@SerializedName("original_language")
@Expose
private String originalLanguage;
@SerializedName("original_title")
@Expose
private String originalTitle;
@SerializedName("genre_ids")
@Expose
private List<Long> genreIds = null;
@SerializedName("backdrop_path")
@Expose
private String backdropPath;
@SerializedName("adult")
@Expose
private boolean adult;
@SerializedName("overview")
@Expose
private String overview;
@SerializedName("release_date")
@Expose
private String releaseDate;
private final static long serialVersionUID = 2770789699641812364L;

public long getVoteCount() {
return voteCount;
}

public void setVoteCount(long voteCount) {
this.voteCount = voteCount;
}

public long getId() {
return id;
}

public void setId(long id) {
this.id = id;
}

public boolean isVideo() {
return video;
}

public void setVideo(boolean video) {
this.video = video;
}

public double getVoteAverage() {
return voteAverage;
}

public void setVoteAverage(double voteAverage) {
this.voteAverage = voteAverage;
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public double getPopularity() {
return popularity;
}

public void setPopularity(double popularity) {
this.popularity = popularity;
}

public String getPosterPath() {
return posterPath;
}

public void setPosterPath(String posterPath) {
this.posterPath = posterPath;
}

public String getOriginalLanguage() {
return originalLanguage;
}

public void setOriginalLanguage(String originalLanguage) {
this.originalLanguage = originalLanguage;
}

public String getOriginalTitle() {
return originalTitle;
}

public void setOriginalTitle(String originalTitle) {
this.originalTitle = originalTitle;
}

public List<Long> getGenreIds() {
return genreIds;
}

public void setGenreIds(List<Long> genreIds) {
this.genreIds = genreIds;
}

public String getBackdropPath() {
return backdropPath;
}

public void setBackdropPath(String backdropPath) {
this.backdropPath = backdropPath;
}

public boolean isAdult() {
return adult;
}

public void setAdult(boolean adult) {
this.adult = adult;
}

public String getOverview() {
return overview;
}

public void setOverview(String overview) {
this.overview = overview;
}

public String getReleaseDate() {
return releaseDate;
}

public void setReleaseDate(String releaseDate) {
this.releaseDate = releaseDate;
}

}

Answer 3

您應檢查的所有步驟：

1. 在郵遞員或每個瀏覽器中調用您的api以獲取並檢查響應json
2. 將您的json響應（您期望的）復制到http://www.jsonschema2pojo.org/此站點以獲取該POJO
3. 在基本URL和端點中制動您的api地址，並創建改造請求
4. 在改造請求回調的onResponse塊中，如果您期望得到json 對象 ，請調用此方法

java的

public static  UsersPOJO getOUsersPOJOJs(String value) {
        Gson gson = new Gson();
        JsonReader reader = new JsonReader(new StringReader(value));
        reader.setLenient(true);
        UsersPOJO data = new UsersPOJO.User();
        try {
            data = gson.fromJson(reader,UsersPOJOr.class);
        }catch ( JsonSyntaxException e){
            e.printStackTrace();
        }
        return data;
    }

科特林

 fun getUsersPOJO getOUsersPOJOListJs(value: String) : UsersPOJO {
            val gson = Gson()
            val reader = JsonReader(StringReader(value))
            reader.isLenient = true
            var data = UsersPOJO()
            try {
                  data = gson.fromJson<Options>(reader, UsersPOJO::class.java)
            }catch (e: JsonSyntaxException){
                e.printStackTrace()
            }
            return data
        }

5.在改造請求回調的onResponse塊中，如果您期望得到json Array ，請調用此方法

java的

public static  List<UserPOJO> getUserPOJOList(String value) {
        Gson gson = new Gson();
        Type listType = new TypeToken<List<UserPOJO>>() {}.getType();
        List<UserPOJO> data = new ArrayList<UserPOJO>();
        try {
            data =new ArrayList<UserPOJO>(gson.fromJson(value,listType));
        }catch ( JsonSyntaxException e){
            e.printStackTrace();
        }
        return data;
    }

科特林

fun getUserPOJOList(value: String) : List<UserPOJO>{
            val gson = Gson()
            val listType = object : TypeToken<List<UserPOJO>>() {}.type
            var data = ArrayList<UserPOJO>()
            try {
                data = gson.fromJson<List<UserPOJO>>(value, listType) as ArrayList<UserPOJO>
            }catch (e: JsonSyntaxException){
                e.printStackTrace()
            }
            return data
        }