it is impossible to convert JSON into an java object using GSON and RETROFIT

Question

I use Retrofit in my project. And i have problem. My JSON not convert to object.

Here it is my JSON:

{"id":1,"facebookId":"123","uuid":"xU71niPhrqzFqmBFhk5fl4LlvWg6zk42ENG4iMjgl3eJEb9LAcqVcc9NmLHzFIgg","userInfo":{"id":1,"user":null,"email":"IP696@mail.ru","firstName":"Pavel","lastName":"Petrashov","name":null,"dob":null,"gender":null,"facebookLink":"link","locale":null,"location":null,"timezone":null,"verified":null,"updatedTime":null},"balancedCustomer":null,"session":{"id":1,"session":"FTKuyeb1BXBzXRZzsAuwPYs4eRIpdi2Z","expirationDate":1424839445000,"ip":null,"user":null}}

Here it is my Retrofit method:

public ApiUser getApiUser(){
        if (null == apiUser) {
            Gson gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create();
            RestAdapter.Builder builder = new RestAdapter.Builder()
                    .setEndpoint(BuildConfig.ROOT_URL_SKIP)
                    .setClient(new OkClient(new OkHttpClient()))
                    .setConverter(new GsonConverter(gson));
            builder.setLogLevel(RestAdapter.LogLevel.FULL);

            RestAdapter restAdapter = builder.build();
            apiUser = restAdapter.create(ApiUser.class);
        }
        return apiUser;
    }

and i get this error:

Error: com.google.gson.JsonSyntaxException: 1424839445000

My classes look like this:

@Table(name = "Users")
public class User extends Model {

    @Expose
    @Column(name = "facebookId")
    @SerializedName("facebookId")
    private String facebookId;

    @Expose
    @Column(name = "uuid")
    @SerializedName("uuid")
    private String uuid;

    @Expose
    @Column(name = "userInfo")
    @SerializedName("userInfo")
    private UserInfo userInfo;

    @Expose
    @Column(name = "balancedCustomer")
    @SerializedName("balancedCustomer")
    private BalancedCustomer balancedCustomer;

    @Expose
    @Column(name = "session")
    @SerializedName("session")
    private Session session;

    public User() {
        super();
    }

    public UserInfo getUserInfo() {
        return userInfo;
    }

    public Session getSession() {
        return session;
    }

    public void setSession(Session session) {
        this.session = session;
    }

    public String getFacebookId() {
        return facebookId;
    }

    public void setFacebookId(String facebookId) {
        this.facebookId = facebookId;
    }

    public void setUserInfo(UserInfo userInfo) {
        this.userInfo = userInfo;
    }

    public void setUuid(String uuid) {
        this.uuid = uuid;
    }

    public String getUuid() {
        return uuid;
    }

    public BalancedCustomer getBalancedCustomer() {
        return balancedCustomer;
    }

    public void setBalancedCustomer(BalancedCustomer balancedCustomer) {
        this.balancedCustomer = balancedCustomer;
    }
}

edited, this whole class.

@Table(name = "Sessions")
public class Session extends Model {

    @Expose
    @Column(name = "session")
    @SerializedName("session")
    private String session;

    @Expose
    @Column(name = "expirationDate")
    @SerializedName("expirationDate")
    private Date expirationDate;

...

other classes with the same annotations. All types of the same names. — Pavel Petrashov, Feb 18 '15 at 05:38
Take a look at this - http://stackoverflow.com/questions/5671373/unparseable-date-1302828677828-trying-to-deserialize-with-gson-a-millisecond — Deepak Bala, Feb 18 '15 at 06:02
yes most likely a problem with the date. could give an example for my code? because in the example of the link is not all clear — Pavel Petrashov, Feb 18 '15 at 06:10

score 1 · Answer 1 · edited May 23 '17 at 12:06

Gson gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().registerTypeAdapter(Date.class, new JsonDeserializer<Date>() {
                public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
                    return new Date(json.getAsJsonPrimitive().getAsLong());
                }
            }).create();

thanks for the link @Deepak Bala enter link description here

score 0 · Answer 2 · answered Feb 18 '15 at 06:12

Don't try to get expirationDate with Date object because in json it is like unformatted.what you should do ,receive like string or double in model classes then inside application you can change or parse to date format.

    @Expose
    @Column(name = "expirationDate")
    @SerializedName("expirationDate")
    private String expirationDate;

score 0 · Answer 3 · answered Feb 18 '15 at 06:15

0

Get expirationDate as long instead of Date :

    @Expose
    @Column(name = "expirationDate")
    @SerializedName("expirationDate")
    private long expirationDate;

answered Feb 18 '15 at 06:15

ρяσѕρєя K

132,198
53
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213

score 0 · Answer 4 · edited May 23 '17 at 12:06

0

this will solve your problem : solution

Let me know if you face any problem with it.

edited May 23 '17 at 12:06

Community

1
1

answered Feb 18 '15 at 06:28

dvs

644
5
14

Gowtham Raj · Answer 5 · 2015-02-23T10:44:16.080

0

Change the data type of the Session->expiryDate to Long or String then when u want to convert that to a Date object just use this.

Date date=new Date(expirationDate);

edited Feb 23 '15 at 10:44

answered Feb 19 '15 at 10:20

Gowtham Raj

2,915
1
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it is impossible to convert JSON into an java object using GSON and RETROFIT

5 Answers5