我正在阅读stackoverflow中的另一篇文章，但我无法让它工作。
我有一个服务器返回的数据，它具有以下形式：
服务器响应
{
"userData": {
"username": "victor.javier",
"email": "victor.javier@stackoverflow.com",
"createdAt": "2016-05-11T09:55:14.720Z",
"updatedAt": "2016-05-11T09:55:14.720Z",
"id": "5733018274ddfad25"
},
"token": "SkpaNuXdzfrhiH06qGK93EH2ujM37hfk02F8o2EodYJumG"
}
我的代码 POJO 是下一个：
用户类
public class User {
@SerializedName("userData")
@Expose
private UserData userData;
@SerializedName("token")
@Expose
private String token;
... CONSTRUCTOR AND GETTERS/SETTERS
}
用户数据类
public class UserData {
@SerializedName("username")
@Expose
private String username;
@SerializedName("email")
@Expose
private String email;
@SerializedName("createdAt")
@Expose
private String createdAt;
@SerializedName("updatedAt")
@Expose
private String updatedAt;
@SerializedName("id")
@Expose
private String id;
... CONSTRUCTOR AND GETTERS/SETTERS
}
我从另一篇文章中复制了下一节课以反序列化 GSON。代码是：
RestDeserializer.class
public class RestDeserializer<T> implements JsonDeserializer<T> {
private Class<T> mClass;
private String mKey;
public RestDeserializer(Class<T> targetClass, String key) {
mClass = targetClass;
mKey = key;
}
@Override
public T deserialize(JsonElement je, Type type, JsonDeserializationContext jdc)
throws JsonParseException {
JsonElement content = je.getAsJsonObject().get(mKey);
return new Gson().fromJson(content, mClass);
}
}
改造实施如下：
RetroFitImpl
public class UserApiImpl implements UserApi {
@Inject
public UserApiImpl() { }
@Override
public User loginUser(String identifier, String password) {
Retrofit retrofitBuilder = getRetrofitBuilder();
UserRetrofitApi userRetrofitApi = retrofitBuilder.create(UserRetrofitApi.class);
LoginRequestEntity loginRequestEntity = new LoginRequestEntity();
loginRequestEntity.setIdentifier(identifier);
loginRequestEntity.setPassword(password);
Call<User> call = userRetrofitApi.loginUser(loginRequestEntity);
Response<User> response = null;
try {
response = call.execute();
} catch (IOException e) {
e.printStackTrace();
}
User body = null;
if (response != null) {
body = response.body();
}
return body;
}
private Retrofit getRetrofitBuilder() {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
return new Retrofit.Builder()
.baseUrl(BuildConfig.API_URL)
.client(client)
.addConverterFactory(buildGsonConverter())
.build();
}
private static GsonConverterFactory buildGsonConverter() {
GsonBuilder gsonBuilder = new GsonBuilder();
Gson gson = new GsonBuilder()
.registerTypeAdapter(User.class, new RestDeserializer<>(User.class, "userData"))
.create();
return GsonConverterFactory.create(gson);
}
}
我在buildGsonConverter方法上做错了，因为我每次都会调用 onError 进行改造，所以我认为这是 GSON 构建中的问题。
任何人都可以告诉我如何解析它来构造一个像服务器响应一样的 GSON？
谢谢你。