CODEWITHSUNDEEP
c#jsonunity-game-engine
Eduardo Herrera
Eduardo Herrera

Reputation: 13

Exception problem with Json parse in Unity

I'm trying to create a list of notifications in Unity, which are delivered by a JSON API. I'm using the SimpleJson plugin, which I already used in another scene perfectly,

Here is the JSON:

[
    {
        "_id": {
            "$oid": "5d30eccda6e0712cfd0832c3"
        },
        "titulo": "Primera Notificacion",
        "texto": "Prueba de notificacion"
    },
    {
        "_id": {
            "$oid": "5d336c36a6e07114ac728cc2"
        },
        "titulo": "Segunda notificacion",
        "texto": "Prueba de notificacion 2"
    }
]

Here is the error:

Exception: JSON Parse: Quotation marks seems to be messed up. SimpleJSON.JSONNode.Parse (System.String aJSON) (at Assets/QRcode/Scripts/SimpleJSON.cs:735) SimpleJSON.JSON.Parse (System.String aJSON) (at Assets/QRcode/Scripts/SimpleJSON.cs:1421) DataLoaderNot+d__5.MoveNext () (at Assets/QRcode/Scripts/DataLoaderNot.cs:29) UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at C:/buildslave/unity/build/Runtime/Export/Scripting/Coroutines.cs:17)

I'm using this code to call JSON:

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using SimpleJSON;

public class DataLoader : MonoBehaviour
{
    string JsonDataString;
    string JsonDataString2;
    static public string OriginalJsonSite = "http://(web service name)/API/testnot.php"; 

    public Text TituloNot;
    public Text TextoNot;

    IEnumerator Start ()
    {
        WWW readingsite = new WWW (OriginalJsonSite);
        Debug.Log(OriginalJsonSite);
        yield return readingsite;

        if (string.IsNullOrEmpty (readingsite.error)) {
            JsonDataString = readingsite.text;
            JsonDataString2 = JsonDataString.Substring(3, JsonDataString.Length - 4);
        }

        JSONNode jsonNode = SimpleJSON.JSON.Parse(JsonDataString2);
        JSONArray array = jsonNode.AsArray;
        Debug.Log(JsonDataString2);

        TituloNot.text = array[0]["titulo"].ToString();
        Debug.Log(jsonNode["titulo"]);
        TextoNot.text = array[0]["texto"].ToString();
        Debug.Log(jsonNode["texto"]);
    }
}

Upvotes: 0

Views: 1637

Answers (1)

Linus
Linus

Reputation: 111

The lines 

Debug.Log(jsonNode["titulo"]);
Debug.Log(jsonNode["texto"]);

won't work for sure, you should remove them.

Also, if the returned JSON is really exactly like the one you posted, you should also remove the line

JsonDataString2 = JsonDataString.Substring(3, JsonDataString.Length - 4);

The parse will take care of finding matching brackets [] and braces {} so this line will break it.

Edit: I didn't test it but this code should work in my opinion:

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using SimpleJSON;

public class DataLoader : MonoBehaviour
{
    string jsonDataString;

    static public string originalJsonSite = "http://(web service name)/API/testnot.php";

    public Text tituloNot;
    public Text textoNot;

    IEnumerator Start()
    {
        WWW readingsite = new WWW (originalJsonSite);
        yield return readingsite;
        if (string.IsNullOrEmpty(readingsite.error))
        {
            jsonDataString = readingsite.text;
        }
        JSONNode jsonNode = SimpleJSON.JSON.Parse(jsonDataString);
        JSONArray array = jsonNode.AsArray;
        tituloNot.text = array[0]["titulo"].ToString();
        textoNot.text = array[0]["texto"].ToString();
    }
}

Upvotes: 0

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