Android 通过改造获取嵌套的JSON数据

我正在使用这样的改装：

final RestAdapter restAdapter = new RestAdapter.Builder()
        .setEndpoint(URL)
        .build();

final ApiEndpointInterface apiService = restAdapter.create(ApiEndpointInterface.class);

apiService.getData(userId, new Callback<UserData>() {

    @Override
    public void success(UserData userData, Response response) {

        // get data

    }

    @Override
    public void failure(RetrofitError retrofitError) {
        retrofitError.printStackTrace();
    }
});

如何在改装成功回调中访问用户名

这是我的模型。用户数据：

---

使用gsonconverter反序列化嵌套类

       RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint(URL). setConverter(new GsonConverter(new GsonBuilder()
               .registerTypeAdapter(UserData.class, new ExplorerDeserializerJson())
               .create()))
                .build();


public class ExplorerDeserializerJson implements sonDeserializer<UserData> {             


   @Override     
   public  UserData deserialize(JsonElement je, Type type, JsonDeserializationContext jdc)
        throws JsonParseException {
    UserData userdata= new UserData();

       JsonArray jsonArray = je.getAsJsonArray();
       Log.d(TAG,"Trying");
       Gson gson = new Gson();

    for(JsonElement element : jsonArray){
        JsonObject jsonObject = element.getAsJsonObject();

       User   userid= gson.fromJson(jsonObject.get("id"),      User.class);
        userdata.addgallery(userid);

    }
    return userdata;


}

---

为什么在变量下面有@SerializedName？id的名称也与json匹配，所以您不需要@SerializedName注释

它应该类似于下面的列表user=userData.getData。然后，您可以对其进行迭代，然后将用户名fecth.getData作为一个列表。不应该吗？检查编辑，抱歉我没有注意到List@AkshayMukadam不过，我想知道，既然JSON在数据中总是只返回一个结果，我应该将其作为列表保存还是将其更改为仅限用户？使用此站点。把你的json贴在那里。选择源类型为JSON，选择gson作为注释样式。它将为您提供现成的解析器，这将有助于解决您的困惑。

public class UserData {

    @Expose
    private Boolean success;
    @Expose
    private List<User> data = new ArrayList<User>();

    /**
     *
     * @return
     * The success
     */
    public Boolean getSuccess() {
        return success;
    }

    /**
     *
     * @param success
     * The success
     */
    public void setSuccess(Boolean success) {
        this.success = success;
    }

    /**
     *
     * @return
     * The data
     */
    public List<User> getData() {
        return data;
    }

    /**
     *
     * @param data
     * The data
     */
    public void setData(List<User> data) {
        this.data = data;
    }

}

public class User {

    @Expose
    private String id;
    @SerializedName("user_id")
    @Expose
    private String name;
    @SerializedName("name")

    /**
     *
     * @return
     * The id
     */
    public String getId() {
        return id;
    }

    /**
     *
     * @param id
     * The id
     */
    public void setId(String id) {
        this.id = id;
    }

   /**
     *
     * @return
     * The message
     */
    public String getName() {
        return name;
    }

    /**
     *
     * @param message
     * The message
     */
    public void setName(String name) {
        this.name = name;
    }
}

       RestAdapter restAdapter = new RestAdapter.Builder()
                .setEndpoint(URL). setConverter(new GsonConverter(new GsonBuilder()
               .registerTypeAdapter(UserData.class, new ExplorerDeserializerJson())
               .create()))
                .build();


public class ExplorerDeserializerJson implements sonDeserializer<UserData> {             


   @Override     
   public  UserData deserialize(JsonElement je, Type type, JsonDeserializationContext jdc)
        throws JsonParseException {
    UserData userdata= new UserData();

       JsonArray jsonArray = je.getAsJsonArray();
       Log.d(TAG,"Trying");
       Gson gson = new Gson();

    for(JsonElement element : jsonArray){
        JsonObject jsonObject = element.getAsJsonObject();

       User   userid= gson.fromJson(jsonObject.get("id"),      User.class);
        userdata.addgallery(userid);

    }
    return userdata;


}