使用Retrofit lib时发生错误。 JsonSyntaxException

-2

我与改造实践，我有一个错误
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was NUMBER at line 1 column 31 path $.total_results使用Retrofit lib时发生错误。 JsonSyntaxException

我使用这个API https://api.themoviedb.org/3/movie/550?api_key=########################

这里是我的代码

MainActivity.java

public class MainActivity extends AppCompatActivity { 

private static final String Tag=MainActivity.class.getSimpleName(); 
private static final String APIKEY="###########################"; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 


    final ProgressDialog pDialog= new ProgressDialog(this); 
    pDialog.setMessage("Loading..."); 
    pDialog.show(); 
    final RecyclerView recyclerView =(RecyclerView)findViewById(R.id.recyclerMovie); 
    recyclerView.setLayoutManager(new LinearLayoutManager(this)); 

    ApiInterface apiService= ApiClient.getClient().create(ApiInterface.class); 
    Call<MovieResponse> call =apiService.getTopRatedMovie(APIKEY); 

    call.enqueue(new Callback<MovieResponse>() { 
     @Override 
     public void onResponse(Call<MovieResponse> call, Response<MovieResponse> response) { 
      List<Movie> movies=response.body().getResults(); 
      Log.d(Tag, "Numbers Of Movies Received"+ movies.size()); 
      MovieAdapter adapter =new MovieAdapter(movies,R.layout.list_item_movies,getApplicationContext()); 
      recyclerView.setAdapter(adapter); 
      pDialog.dismiss(); 

     } 

     @Override 
     public void onFailure(Call<MovieResponse> call, Throwable t) { 
      Log.d(Tag,"Error:-"+t.toString()); 
      pDialog.dismiss(); 
      Toast.makeText(getApplicationContext(),"Oops Error...",Toast.LENGTH_SHORT).show(); 
     } 
    }); 
}}

Movie.java

public class Movie { 

    @SerializedName("poster_path") 
    @Expose 
    private String posterPath; 

    @SerializedName("adult") 
    @Expose 
    private boolean adult; 

    @SerializedName("overview") 
    @Expose 
    private String overview; 

    @SerializedName("release_date") 
    @Expose 
    private String releaseDate; 

    @SerializedName("genre_ids") 
    @Expose 
    private List<Integer> genreIds = new ArrayList<Integer>(); 

    @SerializedName("id") 
    @Expose 
    private Integer id; 

    @SerializedName("original_title") 
    @Expose 
    private String originalTitle; 

    @SerializedName("original_language") 
    @Expose 
    private String originalLanguage; 

    @SerializedName("title") 
    @Expose 
    private String title; 

    @SerializedName("backdrop_path") 
    @Expose 
    private String backdropPath; 

    @SerializedName("popularity") 
    @Expose 
    private Double popularity; 

    @SerializedName("vote_count") 
    @Expose 
    private Integer voteCount; 

    @SerializedName("video") 
    @Expose 
    private Boolean video; 

    @SerializedName("vote_average") 
    @Expose 
    private Double voteAverage; 


    public Movie(String posterPath, boolean adult, String overview, String releaseDate, List<Integer> genreIds, Integer id, String originalTitle, String originalLanguage, String title, String backdropPath, Double popularity, Integer voteCount, Boolean video, Double voteAverage) { 
      this.posterPath = posterPath; 
      this.adult = adult; 
      this.overview = overview; 
      this.genreIds = genreIds; 
      this.backdropPath = backdropPath; 
      this.id=id; 
      this.originalLanguage=originalLanguage; 
      this.originalTitle=originalTitle; 
      this.releaseDate=releaseDate; 
      this.title=title; 
      this.video=video; 
      this.voteAverage=voteAverage; 
      this.voteCount=voteCount; 
      this.popularity=popularity; 
    } 
    //getter and setter methods }

MovieResponse.java

public class MovieResponse { 

@SerializedName("page") 
@Expose 
private int page; 

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

@SerializedName("total_pages") 
@Expose 
private int total_pages; 

@SerializedName("total_results") 
@Expose 
private List<Movie> total_results; 
//getter and setter methods}

ApiClient.java

public class ApiClient { 

public static final String Base_URl="http://api.themoviedb.org/3/"; 
public static Retrofit retrofit=null; 

public static Retrofit getClient(){ 
    if(retrofit==null){ 
     retrofit=new Retrofit.Builder() 
       .baseUrl(Base_URl) 
       .addConverterFactory(GsonConverterFactory.create()) 
       .build(); 
    } 
    return retrofit; 
}}

ApiInterface.java

public interface ApiInterface{

@GET("movie/top_rated") 
Call<MovieResponse> getTopRatedMovie(@Query("api_key") String apiKey); 

@GET("movie/{id}") 
Call<MovieResponse> getMovieDetails(@Path("id") int id, @Query("api_key") String apiKey);

}

请给我的解决方案...

来源

2017-07-20 Ankit Bhalodiya

你哪里有这个错误？ – Nathan

在Movie.java中，“genreIds”没有指定适当的类，它是Integer类型，但它应该是Bean类。试试这个，并让我知道。 –

当我尝试你的api它返回响应作为电影对象，而不是像MovieResponse，这可能是它显示一个JSON免除的原因 – darwin

创建错了对象

@SerializedName("total_results") 
@Expose 
private List<Movie> total_results;

瓒ge到

@SerializedName("total_results") 
    @Expose 
    private Int total_results;

因为根据你的错误，它应该是结果的数目，你创建了List，所以它只会要求ARRAY。

如果我错了，那么请复制你的反应，并采取POJO类从 http://www.jsonschema2pojo.org/

来源

2017-07-20 11:50:01

谢谢@Mohsin汗，这帮助我解决'错误'.... –

@AnkitBhalodiya：如果你发现解决方案是为你工作，那么请接受为答案。 –

我不知道该怎么做.... @Mohsin Khan –

仔细观察你的Movie.java POJO，特别是这一领域：

@SerializedName("genre_ids") 
@Expose 
private List<Integer> genreIds = new ArrayList<Integer>();

...其中有型整数列表。在你提供的JSON中，这个数组包含一个Objects而不是Integer ID。你可以表示这个对象是这样的：

public class Genre { 
    @SerializedName("id") 
    @Expose 
    private int id; 

    @SerializedName("name") 
    @Expose 
    private String name; 
}

此外，这种阵列的实际名称是genres（不是genres_ids）。因此，为避免解析错误，您需要的唯一一件事就是将上述字段更改为：

@SerializedName("genres") 
@Expose 
private List<Genre> genres = new ArrayList<Genre>();

快乐编码！;）

来源

2017-07-20 11:51:00

感谢他帮助我组织数据.... @AlexanderKrol –

使用Retrofit lib时发生错误。 JsonSyntaxException

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