Question

改造我被卡住了。它显示给我一个错误“改型预期的begin_array但在第1行第2列$是begin_object”，我正在尝试获取json数据这是我的代码

杰森 [{“ map_number”：“ 2”，“ map_name”：“ 1”，“ map_description”：“ 1”}，{“ map_number”：“ 3”，“ map_name”：“ 2”，“ map_description”：“ 2 “]

MainFragment.java

Call<MapItemCollectionDao> call = HttpManager.getInstance().getService().loadMapList();
    call.enqueue(new Callback<MapItemCollectionDao>() {
        @Override
        public void onResponse(Call<MapItemCollectionDao> call, Response<MapItemCollectionDao> response) {
            if(response.isSuccessful()){
                MapItemCollectionDao dao = response.body();
                Toast.makeText(getActivity(),dao.getData().get(0).getMapName(),Toast.LENGTH_LONG).show();
            }else{
                try {
                    Toast.makeText(getActivity(),response.errorBody().string(),Toast.LENGTH_LONG).show();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        @Override
        public void onFailure(Call<MapItemCollectionDao> call, Throwable t) {
            Toast.makeText(getActivity(),t.toString(),Toast.LENGTH_LONG).show();
        }
    });

MapItemDao.java

public class MapItemDao {
@SerializedName("map_number") private int mapNumber;
@SerializedName("map_name") private String mapName;
@SerializedName("map_description") private String mapDescription;

public int getMapNumber() {
    return mapNumber;
}

public void setMapNumber(int mapNumber) {
    this.mapNumber = mapNumber;
}

public String getMapName() {
    return mapName;
}

public void setMapName(String mapName) {
    this.mapName = mapName;
}

public String getMapDescription() {
    return mapDescription;
}

public void setMapDescription(String mapDescription) {
    this.mapDescription = mapDescription;
}

MapItemCollectionDao.java

public class MapItemCollectionDao {


private List<MapItemDao> data;

public List<MapItemDao> getData() {
    return data;
}

public void setData(List<MapItemDao> data) {
    this.data = data;
}}

ApiService.java

public interface ApiService {

@GET("map_api.php")
Call<MapItemCollectionDao> loadMapList();}

HttpManager.java

public class HttpManager {

private static HttpManager instance;

public static HttpManager getInstance() {
    if (instance == null)
        instance = new HttpManager();
    return instance;
}

private Context mContext;
private ApiService service;

private HttpManager() {
    mContext = Contextor.getInstance().getContext();

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://lmtznetwork.info/backend-snru/")
            .addConverterFactory(GsonConverterFactory.create())
            .build();

    service2 = retrofit.create(ApiService.class);
}
public  ApiService getService(){
    return service2;
}}

改进预期的begin_array，但在第1行第2列路径中是begin_object

0 个答案: