make json to pojo from an array without index

Question

I'm using retrofit and I have a contact class like this :

public class MyContact {

    private String response;
    private String message;

    private Map<String, Object> additionalProperties = new HashMap<String, Object>();

    public String getResponse() {
        return response;
    }

    public void setResponse(String response) {
        this.response = response;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Map<String, Object> getAdditionalProperties() {
        return this.additionalProperties;
    }

    public void setAdditionalProperty(String name, Object value) {
        this.additionalProperties.put(name, value);
    }

}

and there is a part of my json :

{"Response":"Success","Message":"YES","Data":{"Info":{"id":"1" , "name":"leon"}}}

I'm using retrofit to get this JSON

The question is how to manage it by pojo in android.I I don't want to get 'Data' part just 'response' and 'message'

My retrofit part of the app is completely nice and running

You need to do JSON parsing to extract only relevant fields refer https://www.tutorialspoint.com/android/android_json_parser.htm — Akshay Katariya, Apr 25 '18 at 04:11
you can try this http://www.jsonschema2pojo.org/ it takes json string as input and will give you model class — Akram, Apr 25 '18 at 05:02

Akshay Katariya · Answer 1 · 2018-04-25T04:33:37.173

1

You will need to do JSON Parsing like this

String res = "{\"Response\":\"Success\",\"Message\":\"YES\",\"Data\":{\"Info\":{\"id\":\"1\" , \"name\":\"leon\"}}}";

MyContact model =new MyContact();

if (res!=null);//Retrofit response 
    try
    {
        JSONObject jo = new JSONObject(res);
        model.setResponse(jo.optString("Response"));
        model.setMessage(jo.optString("Message"));

        Log.d("Akshay","Response = "+model.getResponse() + " " +model.getMessage());
    }
    catch (JSONException e)
    {
        e.printStackTrace();
    }

edited Apr 25 '18 at 04:33

answered Apr 25 '18 at 04:24

Akshay Katariya

1,464
9
20

after request from retrofit method of onFailure is giving back to me . i have no response in there – Hadi Ahmadi Apr 25 '18 at 04:27
Then there is something wrong with your Retrofit code, you should get this JSON from server inside `onResponse ` – Akshay Katariya Apr 25 '18 at 04:29

score 1 · Answer 2 · edited Apr 25 '18 at 04:55

1

Create the Serializable class -

class Response implements Serializable{
    @SerializedName("Response")
    private String response;
    @SerializedName("Message")
    private String message;

    public Response(){}

    public Response(String response, String message){
        this.message = message;
        this.response = response;
    }

    //todo getter and setter methods
}

Now parse the JSON data with help of Gson.

String jsonString = "{\"Response\":\"Success\",\"Message\":\"YES\",\"Data\":{\"Info\":{\"id\":\"1\" , \"name":\"leon\"}}}";
Response responseObject = new Gson()
                          .fromJson(
                             jsonString,
                             Response.class
                          );

in this POJO class above you can add other data if you want. for avoiding any specific property to serialize and deserialize you can use exclusion strategy.

For more information on this yoou can go here.

edited Apr 25 '18 at 04:55

Hitesh Sarsava

666
4
15

answered Apr 25 '18 at 04:31

Sagar Nayak

2,138
2
19
52

Your answer is good but there might be a case where you need those fields from model POJO to set value in them and use as `Parcelable ` – Akshay Katariya Apr 25 '18 at 04:36
i dont get it @AkshayKatariya. can you explain a bit more. – Sagar Nayak Apr 25 '18 at 04:42
@AkshayKatariya for your question just need to implements Serializable to Response.Class . – Hitesh Sarsava Apr 25 '18 at 04:52

score 0 · Answer 3 · answered Apr 25 '18 at 05:05

If you want to avoid any data used below keyword transient

and according to given above json pojo class will be like this..

public class Data {

@SerializedName("Info")
private Info info;

public Info getInfo() {
    return info;
}

public void setInfo(Info info) {
    this.info = info;
}

}

public class Info {

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

public String getId() {
    return id;
}

public void setId(String id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

}

then finaly response pojo class..

public class ResponseData {

@SerializedName("Response")
private String response;
@SerializedName("Message")
private String message;
@SerializedName("Data")
transient 
private Data data;

public String getResponse() {
    return response;
}

public void setResponse(String response) {
    this.response = response;
}

public String getMessage() {
    return message;
}

public void setMessage(String message) {
    this.message = message;
}

public Data getData() {
    return data;
}

public void setData(Data data) {
    this.data = data;
}

}

make json to pojo from an array without index

3 Answers3

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