问题
I got a null
object attributes after deserialization of a json
response.
Developing under android, I'm using retrofit2
, moshi as converter (https://github.com/kamikat/moshi-jsonapi ) .
When debugging ,I saw a json
response fully retrieved (not null attributes),but deserialization fails. Should I use GSON
instead?
Here's my retrofit builder I use to make my json
call: (no issue)
public static JsonServerInterface getSimpleClient(){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_AUTH_URL)a
.addConverterFactory(MoshiConverterFactory.create())
.build();
JsonServerInterface webServer=retrofit.create(JsonServerInterface.class);
return webServer;
}
My api
json
call,response contain UserModel
with null
attributes(deserialization fails without any error)
signInCall.enqueue(new Callback<UserModel>(){
@Override
public void onResponse
(Call<UserModel> call, Response<UserModel> response)
{
response.message();
}
}
My UserModel
(as required by moshi ,but I think it lacks something):
@JsonApi(type = "users")
public class UserModel extends Resource {
@Json(name = "auth-token")
private String authToken;
@Json(name = "firstname")
private String firstname;
@Json(name = "lastname")
private String lastname;
@Json(name = "email")
private String email;
@Json(name = "created-at")
private String createdAt;
@Json(name = "updated-at")
private String updatedAt;
private HasMany<ActivityModel> activities;
My json
response I saw when debugging http response, I retrieve without any trouve,but moshi sucks to deserialize it,and no errors are raised:
{
"data": {
"id": "21",
"type": "users",
"attributes": {
"auth-token": "t8S3BTqyPwN3T4QDMY1FwEMF",
"firstname": "aymen",
"lastname": "myself",
"email": "aymen.myself@gmail.com",
"created-at": "2017-11-13T22:52:39.477Z",
"updated-at": "2017-11-13T23:21:09.706Z"
},
"relationships": {
"activities": {
"data": [
{
"id": "81",
"type": "activities"
}
]
}
}
},
"included": [
{
"id": "81",
"type": "activities",
"attributes": {
"title": "activity 10",
"description": "how to draw a circle",
"start-at": "2017-11-13T23:06:13.474Z",
"duration": 10,
"created-at": "2017-11-13T23:06:32.630Z",
"updated-at": "2017-11-13T23:06:32.630Z"
},
"relationships": {
"user": {
"data": {
"id": "21",
"type": "users"
}
}
}
}
]
}
回答1:
I find the solution after lot of hours: I should use "Document" instead of UserModel
interface:
@POST("sign-in.json")
Call<Document> signIn(@Body Credentials credentials);
when calling:
signInCall.enqueue(new Callback<Document>(){
@Override
public void onResponse(Call<Document> call, Response<Document> response) {
hope it helps
来源:https://stackoverflow.com/questions/47411408/deserialization-of-a-json-api-response-with-moshi