最近接手一個(gè)項(xiàng)目，在項(xiàng)目中有用到Json的地方，根據(jù)網(wǎng)上找到的資料 客戶端配置文件優(yōu)化策略,綜合評(píng)定發(fā)現(xiàn)LitJson還不錯(cuò)勾徽，于是找到Json下載的網(wǎng)站的網(wǎng)站下載對(duì)應(yīng)的Json祠锣，進(jìn)入LitJson后盡然提示我 404！ WTF继找？！Ｌ友亍婴渡！我可是會(huì)科學(xué)上網(wǎng)的人，于是去GitHub下載LitJSON,發(fā)現(xiàn)最近幾天剛更新過(guò)感挥，估計(jì)性能會(huì)更好缩搅，但是只有對(duì)應(yīng)的源碼，沒(méi)有DLL触幼，也不要緊硼瓣，我已經(jīng)幫你把源碼轉(zhuǎn)成DLL了，LitJSON對(duì)應(yīng)DLL下載

更新目錄

• 更新 2018.05.18 目前測(cè)試發(fā)現(xiàn)如果轉(zhuǎn)換類(lèi)中的字典Key為int時(shí)會(huì)有報(bào)錯(cuò)的情況

• 更新 2019.04.6 序列化有float值時(shí)會(huì)報(bào)錯(cuò)Max allowed object depth reached while trying to export from type System.Single置谦，需要把float轉(zhuǎn)換成double

• 更新 2019.12.12 更新版本 LitJSON 0.15.0

下面來(lái)簡(jiǎn)單介紹下LitJson的使用方法堂鲤，更多示例參考GitHub上的文檔

示例所示，JsonMapper.ToJson將制定數(shù)據(jù)結(jié)構(gòu)轉(zhuǎn)換為Json字符媒峡，JsonMapper.ToObject<T>用于將Json字符轉(zhuǎn)換為指定數(shù)據(jù)結(jié)構(gòu)

這個(gè)示例介紹的是活的JsonData也可以按照索引器的方式訪問(wèn)指定的元素

image.png

最后一個(gè)示例就是 JsonReader 與 JsonWriter 瘟栖， 這兩種類(lèi)型實(shí)際上是該庫(kù)的基礎(chǔ)，并且JsonMapper類(lèi)型建立在它們之上谅阿，所以開(kāi)發(fā)人員可以將JsonReader和JsonWriter類(lèi)視為L(zhǎng)itJSON的低級(jí)編程接口半哟。

完整Code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

using System;
using LitJson;
using Custom.Log;
using System.Text;

public class LitJsonExample : MonoBehaviour
{
    void Start()
    {
        //PersonToJson();
        //JsonToPerson();

        //LoadAlbumData(json);

        PrintJson(sample);
        this.Log(new String('-', 100));
        WriterJson();
    }

    #region 方案一
    public class Person
    {
        public string Name { get; set; }
        public int Age { get; set; }
        public DateTime Birthday { get; set; }
    }
    public void PersonToJson()
    {
        Person HaiLan = new Person();

        HaiLan.Name = "菜鳥(niǎo)海瀾";
        HaiLan.Age = 51;
        HaiLan.Birthday = new DateTime(2018, 05, 17);

        string JsonStr = JsonMapper.ToJson(HaiLan);

        this.Log(JsonStr);
    }

    public void JsonToPerson()
    {
        string json = @"
            {
                ""Name""     : ""菜鳥(niǎo)海瀾"",
                ""Age""      : 2018,
                ""Birthday"" : ""05/17/2018 00:00:00""
            }";

        Person HaiLan = JsonMapper.ToObject<Person>(json);

        this.Log("JsonToPerson Is Name:" + HaiLan.Name);
    }

    #endregion

    #region 方案二
    string json = @"
          {
            ""album"" : {
              ""name""   : ""The Dark Side of the Moon"",
              ""artist"" : ""Pink Floyd"",
              ""year""   : 1973,
              ""tracks"" : [
                ""Speak To Me"",
                ""Breathe"",
                ""On The Run""
              ]
            }
          }
        ";

    public void LoadAlbumData(string json_text)
    {
        Debug.Log("Reading data from the following JSON string: " + json_text);

        JsonData data = JsonMapper.ToObject(json_text);

        // 像哈希表一樣訪問(wèn)字典
        this.Log("Album's name: {0}", data["album"]["name"]);

        // 存儲(chǔ)在JsonData實(shí)例中的標(biāo)量元素可以轉(zhuǎn)換為它們的自然類(lèi)型
        string artist = (string)data["album"]["artist"];
        int year = (int)data["album"]["year"];

        this.Log("Recorded by {0} in {1}", artist, year);

        // 數(shù)組也像常規(guī)列表一樣被訪問(wèn)
        this.Log("First track: {0}", data["album"]["tracks"][0]);
    }
    #endregion

    #region 方案三
    string sample = @"{
            ""name""  : ""菜鳥(niǎo)海瀾"",
            ""age""   : 2018,
            ""awake"" : true,
            ""n""     : 2018.0517,
            ""note""  : [ ""life"", ""is"", ""but"", ""a"", ""dream"" ]
          }";

    public  void PrintJson(string json)
    {
        JsonReader reader = new JsonReader(json);

        this.Log("{0,14} {1,10} {2,16}", "Token", "Value", "Type");
        this.Log(new String('-', 100));

        // Read（）方法返回false時(shí)，沒(méi)有其他內(nèi)容可讀
        while (reader.Read())
        {
            string type = reader.Value != null ?
                reader.Value.GetType().ToString() : "";

            this.Log("{0,14} {1,10} {2,16}",
                              reader.Token, reader.Value, type);
        }
    }

    public  void WriterJson()
    {
        StringBuilder sb = new StringBuilder();
        JsonWriter writer = new JsonWriter(sb);

        writer.WriteArrayStart();
        writer.Write(1);
        writer.Write(2);
        writer.Write(3);

        writer.WriteObjectStart();
        writer.WritePropertyName("color");
        writer.Write("blue");
        writer.WriteObjectEnd();

        writer.WriteArrayEnd();

        this.Log(sb.ToString());
    }
    #endregion
}