How to Serialize and Deserialize JSON and JSON Arrays in Unity using JsonUtility?

JSONUTILITY serialization and desertation JSON and JSON arrays are used in Unity.

Question

How to use C#to parse and process JSON data (single object and array) in unity, especially using BoomLagoon.json, minijson or jsonutility?

Answer

Starting from version of Unity 5.3.3, it is recommended to use JSONUTILITY to process JSON data because it has high performance and easy use.

<.> 1. The serialization and derivativeization of a single data object:

serialization:

Output: Capitalization:

<code class="language-csharp">Player playerInstance = new Player();
playerInstance.playerId = "8484239823";
playerInstance.playerLoc = "Powai";
playerInstance.playerNick = "Random Nick";
string playerToJson = JsonUtility.ToJson(playerInstance);</code>

<.> 2. The serialization and derivative of the JSON array:

<code class="language-json">{"playerId":"8484239823","playerLoc":"Powai","playerNick":"Random Nick"}</code>

In order to handle the JSON array, you can use the auxiliary class from this github warehouse:

Auxiliary class -jsonhelper.cs

<code class="language-csharp">string jsonString = "{\"playerId\":\"8484239823\",\"playerLoc\":\"Powai\",\"playerNick\":\"Random Nick\"}";
Player player = JsonUtility.FromJson<Player>(jsonString);</code>

serialization:

Output: Capitalization:

<code class="language-csharp">public static class JsonHelper
{
    public static T[] FromJson<T>(string json)
    {
        Wrapper<T> wrapper = JsonUtility.FromJson<Wrapper<T>>(json);
        return wrapper.Items;
    }

    public static string ToJson<T>(T[] array)
    {
        Wrapper<T> wrapper = new Wrapper<T>();
        wrapper.Items = array;
        return JsonUtility.ToJson(wrapper);
    }

    private class Wrapper<T>
    {
        public T[] Items;
    }
}</code>

Other precautions

For JSON with digital or digital attributes:

<code class="language-csharp">Player[] players = new Player[2];
players[0] = new Player { playerId = "8484239823", playerLoc = "Powai", playerNick = "Random Nick" };
players[1] = new Player { playerId = "512343283", playerLoc = "User2", playerNick = "Rand Nick 2" };
string playersToJson = JsonHelper.ToJson(players);</code>

You can consider using Simplejson in Unity Wiki.

Jsonutility failure:

<code class="language-json">{"Items":[{"playerId":"8484239823","playerLoc":"Powai","playerNick":"Random Nick"},{"playerId":"512343283","playerLoc":"User2","playerNick":"Rand Nick 2"}]}</code>

ensure that the class is not an array, has

attributes, and members are not defined as attributes (delete ).

<code class="language-csharp">string jsonString = "{\"Items\":[{\"playerId\":\"8484239823\",\"playerLoc\":\"Powai\",\"playerNick\":\"Random Nick\"},{\"playerId\":\"512343283\",\"playerLoc\":\"User2\",\"playerNick\":\"Rand Nick 2\"}]}";
Player[] players = JsonHelper.FromJson<Player>(jsonString);</code>

This Revised Output Maintains The Original Image and ITS Format, Rephrases The Text for Improved Flow and Clarity, and users consistent code formting. The core information remains unchanged.

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