Unity C# Json 編碼、解碼 (使用 Json.Net)

請先將 Newtonsoft.Json.dll 檔案放到 Unity 專案底下，即可開始使用。

using UnityEngine;
using System.Collections;
using Newtonsoft.Json;

public class Book
{
   public int ID { get; set; }
   public string Name { get; set; }
   public string Author { get; set; }
}

public class Test : MonoBehaviour
{
   void
Start ()
  {
      Book book = new Book ();
      book.ID = 1;
      book.Name = "Push Loli ( Getting Started )";
      book.Author = "Alice";

       // Json Encoding
      string output = JsonConvert.SerializeObject (book);
      print (output);


// Json Decoding
      Book book2 = JsonConvert.DeserializeObject<Book> (output);
      print ( "ID : " + book2.ID);
      print ( "Name : " + book2.Name);
      print ( "Author : " + book2.Author);

}
}

輸出結果：

Unity - Untitled - JsonTest - PC, Mac & Linux Standalone

高級版：

using UnityEngine;
using System.Collections;
using Newtonsoft.Json;
using System.Collections.Generic;

public class Book
{
public int ID ;
public string Name ;
public string Author;
public List< string> ListData = new List< string> ();
}

public class RootLibrary
{

// Value name (Library) is Json root "Name".
public List<Book> Library = new List<Book> ();
}

public class Test : MonoBehaviour
{
void Start ()
{
   // Json Path : Library.book
   Book book = new Book ();
   book.ID = 1;
   book.Name = "Unity Book";
   book.Author = "Bee"
;
   book.ListData.Add ( "Box");
   book.ListData.Add ( "Banana");
   book.ListData.Add ( "Ball");

   // Json Path : Library.book2
   Book book2 = new Book ();
   book2.ID = 2;
   book2.Name = "C# Book";
   book2.Author = "God"
;
   book2.ListData.Add ( "Man");
   book2.ListData.Add ( "Boy");
   book2.ListData.Add ( "Girl");

   // Json Path : Library.book3
   Book book3 = new Book ();
   book3.ID = 3;
   book3.Name = "Loli Book";
   book3.Author = "Alice"
;
   book3.ListData.Add ( "Cat");
   book3.ListData.Add ( "Dog");
   book3.ListData.Add ( "Apple");

   // Json Path : Library (Root)
   RootLibrary lib = new RootLibrary ();
   lib.Library.Add (book);
   lib.Library.Add (book2);
   lib.Library.Add (book3);


// Json Encoding
   string output = JsonConvert.SerializeObject (lib);
   print (output);

   //--------------------------------------------------------------

   // Json Decoding
   RootLibrary _lib = JsonConvert.DeserializeObject<RootLibrary> (output);

   foreach (Book _book in _lib.Library) {
         print (
"----------------------------------");
      print ( "ID : " + _book.ID);
      print ( "Name : " + _book.Name);
      print ( "Author : " + _book.Author);
      for ( int i =0; i<_book.ListData.Count; i++) {
         print ( "ListData [ " + i + " ] : "
+ _book.ListData [i]);
      }
   }
}
}

輸出結果(第一行因為太長了所以被切斷，所以我自行排版後並上傳文字結果)：

{
"Library":
[
   {
      "ID":1,
      "Name":"Unity Book",
      "Author":"Bee",
      "ListData":["Box","Banana","Ball"]
   },
   {
      "ID":2,
      "Name":"C# Book",
      "Author":"God",
      "ListData":["Man","Boy","Girl"]
   },
   {
      "ID":3,
      "Name":"Loli Book",
      "Author":"Alice",
      "ListData":["Cat","Dog","Apple"]
   }
]
}

Unity - Untitled - JsonTest - PC, Mac & Linux Standalone

Json 查詢：

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

public class RootLibrary
{
public string Type;
}

public class Test : MonoBehaviour
{
   void
Start ()
  {
      RootLibrary lib = new RootLibrary ();
      lib.Type = "BookLibrary";

    // Json Encoding
      string output = JsonConvert.SerializeObject (lib);
      print (output);

       //--------------------------------------------------------------

    // Json Decoding
      JObject obj = JsonConvert.DeserializeObject<JObject> (output);
      print (obj.GetValue( "Type"
));
      print (obj[ "Type"]);
  }
}