Json----簡單介紹

Json

先分享一個網站http://www.bejson.com/,這個是用來檢測Json文件的錯誤的,Json文件通常很差查找錯誤.

看懂Json只須要四句話:

               對象表示爲鍵值對

數據由逗號分隔

花括號保存對象

方括號保存數組

      

 這就是Json文件.不在過多介紹,重點不在這裏

基礎:Json到對象和對象到Json

須要用到的API:

 JsonMapper.ToJson();

JsonMapper.ToObject();

引用命名空間Using LitJson;

代碼:

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using UnityEngine;
 4 using LitJson;
 5 public class JsonTest : MonoBehaviour {
 6     void Start()
 7     {
 8 //對象到Json
 9         MyIphone myPhone = new MyIphone
10         {
11             appNum = 30,
12             phoneState = true,
13             appList = new List<string>() { "抖音", "BiliBili", "喜馬拉雅聽" }
14         };
15         string jsonIpone = JsonMapper.ToJson(myPhone);
16       Debug.Log(jsonIpone);
17 
18 
19 //Json轉到對象
20         string myIphoneJson = "{'appNum':25,'phoneState':false,'appList':['WeChat','Sina','QQ']}";
21         MyIphone myIPhone = JsonMapper.ToObject<MyIphone>(myIphoneJson);
22         Debug.Log("手機應用數量:"+myIPhone.appNum+"-手機開機狀態"+myIPhone.phoneState);
23         for (int i = 0; i < myIPhone.appList.Count; i++)
24         {
25             Debug.Log(myIPhone.appList[i]);
26         }
27     }    
28 }
29 public class MyIphone
30 {
31     public int appNum;
32     public bool phoneState;
33     public List<string> appList;
34 }

 

進階使用的:

代碼二:

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using System.IO;
 4 using System.Text;
 5 using LitJson;
 6 using UnityEngine;
 7 public class DataNode// 該class用於json的時候不能有構造函數
 8 {
 9     public string CopyName;
10     public string CopyPosition;
11     public string CopyRotation;
12 }
13 public class DataCenter
14 {
15     public List<DataNode> List;
16 
17    public DataCenter()
18     {
19         List =new List<DataNode>();
20     }
21 }
22 public class JsonConvert : MonoBehaviour {
23     private string _txtPath;
24     private string _jsonPath;  
25     void Start ()
26     {
27         _jsonPath = Application.streamingAssetsPath + "/CopyInfo.json";
28         _txtPath = Application.streamingAssetsPath + "/CopyInfo.txt";
29        // Json的解析是很快的 網絡
30         ReadTextToJson();
31         ReadJsonFromJsonPath();
32     }
33     void ReadJsonFromJsonPath()
34     {
35       string jsondata =  File.ReadAllText(_jsonPath);
36         List<DataNode> node = JsonMapper.ToObject<List<DataNode>>(jsondata);
37         Debug.LogError(node.Count);
38     }
39     void ReadTextToJson()
40     {
41         DataCenter dc = new DataCenter();
42         using (StreamReader reader = new StreamReader(_txtPath,Encoding.UTF8))
43         {
44             string tmpStr = string.Empty;
45             while ( !string.IsNullOrEmpty(tmpStr = reader.ReadLine()))
46             {
47                 string[] infos = tmpStr.Split('_');
48                 DataNode _node = new DataNode();
49                 _node = infos();
50                 dc.List.Add(_node);
51             }
52         }
53         //數據讀取完畢 開始寫入json 傳遞的List<>
54         string jsonData = JsonMapper.ToJson(dc.List);
55         File.WriteAllText(_jsonPath,jsonData);
56     }
57 }

 

代碼三:

 

  1 using System.Collections;
  2 using System.Collections.Generic;
  3 using System.IO;
  4 using System.Text;
  5 using UnityEngine;
  6 using  Excel;
  7 using OfficeOpenXml;
  8 using Excel.Core;
  9 using  System.Data;
 10 using OfficeOpenXml.Style;
 11 using UnityEditor;
 12 using  LitJson;
 13 class CopyInfo  //CopyInfo的構造
 14 {
 15     public string     CopyName;
 16     public Vector3 CopyPosition;
 17     public Quaternion CopyRotation;
 18     public CopyInfo(string name, Vector3 postion, Vector3 rotation)
 19     {
 20         CopyName = name;
 21         CopyPosition = postion;
 22        CopyRotation = Quaternion.Euler(rotation);
 23     }
 24 }
 25 class JsonNode//JsonNode的構造
 26 {
 27     public string StrName;
 28     public string StrPosition;
 29     public string StrRotation;   
 30     public JsonNode(string name,string pos, string rot)
 31     {
 32         StrName = name;
 33         StrPosition = pos;
 34         StrRotation = rot;
 35     }
 36 }
 37 class MyJsonData  //MyJsonData的構造
 38 {
 39     public List<JsonNode> JsonDatalist;
 40 
 41     public MyJsonData()
 42     {
 43         JsonDatalist = new List<JsonNode>();
 44     }
 45 }
 46 public class CreateManager : MonoBehaviour
 47 {
 48     private List<GameObject> _copyList;
 49     private List<CopyInfo>   _copyInfoList;
 50     private MyJsonData _jsonData;
 51     private string _excelPath;
 52     private string _path;
 53     //1. 讀文件
 54     //2. 解析文件信息
 55     //3. 實例化
 56         //4. 實例化6個
 57     //4.1 在3s中銷燬一個而且添加一個
 58     #region  讀取存儲在unity的streamingAssets路徑中的json
 59     void ReadJsonByJsonPath()
 60     {
 61         string path = Application.streamingAssetsPath + "/CopyInfo.json";//路徑
 62         string readInfo =File.ReadAllText(path);//文件讀取過程
 63         Debug.LogWarning(readInfo);
 64        
 65         //類型是JsonNode
 66         List<JsonNode> JsonDatalist = new List<JsonNode>();//由於沒有new對象!!!
 67         JsonDatalist = JsonMapper.ToObject<List<JsonNode>>(readInfo);//重要代碼
 68         Debug.LogError(JsonDatalist.Count);
 69     }
 70   #endregion
 71     void Start()
 72     {
 73         _path = Application.streamingAssetsPath + "/CopyInfo.txt";
 74         _excelPath = Application.streamingAssetsPath + "/CopyInfo.xlsx";
 75         _copyInfoList = new List<CopyInfo>();
 76         _copyList = new List<GameObject>();
 77         _jsonData = new MyJsonData();
 78         WriteJsonByList();
 79         ReadJsonByJsonPath();
 80     }
 81     #region 
 82     private void WriteJsonByList( )
 83     {
 84         string jsonPath = Application.streamingAssetsPath
 85                           + "/CopyInfo.json";
 86         ////將一個list信息轉換爲json格式 
 87         ////定義一個class 這個class是什麼不重要  必須包含一個列表      
 88          _jsonData = new MyJsonData();
 89         using (StreamReader reader  = new StreamReader(_path,Encoding.UTF8))
 90         {
 91             string tmp = string.Empty;
 92             while ( !  string.IsNullOrEmpty(tmp = reader.ReadLine()))
 93             {
 94                 string[] infos = tmp.Split('_');
 95                 _jsonData.JsonDatalist.Add(new JsonNode(infos[0], infos[1], infos[2]));
 96             }
 97         }
 98         //jsondata  數據填充完成
 99         string writeData = JsonMapper.ToJson(_jsonData);//
100         File.WriteAllText(jsonPath,writeData);
101     }
102     #endregion
103     private void WriteExcel(string path, List<CopyInfo> list)
104     {
105         FileInfo excelInfo = new FileInfo(path);
106         if (excelInfo.Exists)
107         {
108             excelInfo.Delete();
109             excelInfo = new FileInfo(path);
110         }        
111         //開始shiyong Excel 
112         using (ExcelPackage package = new ExcelPackage(excelInfo))
113         {
114             ExcelWorksheet sheet = package.Workbook.Worksheets.Add("TestInfo"); // 添加了一個工做表
115             sheet.Cells[1, 1].Value = "CopyName";
116             sheet.Cells[1, 2].Value = "CopyPosition";
117             sheet.Cells[1, 3].Value = "CopyRotation";
118             for (int i = 0; i < _copyInfoList.Count; i++)
119             {
120                 sheet.Cells[2 + i, 1 ].Value = _copyInfoList[i].CopyName;
121                 sheet.Cells[2 + i, 2 ].Value = _copyInfoList[i].CopyPosition;
122                 sheet.Cells[2 + i, 3 ].Value = _copyInfoList[i].CopyRotation;
123             }
124             sheet.Cells.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
125             sheet.Cells.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
126             sheet.Cells.Style.Font.Bold = true;
127             sheet.Cells.Style.Font.Name = "宋體";
128             sheet.Cells.Style.Font.Size = 28;
129             sheet.Cells.AutoFitColumns(50, 150);
130             package.Save();
131         }
132         AssetDatabase.Refresh();
133     }
134 }