[大数据]Data——Json

1.JsonUtility

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

[Serializable]
public class Person
{
    public string name;
    public int age;
}
[Serializable]
public class Persons
{
    public Person[] persons;
}
public class JsonUtilityDemo : MonoBehaviour
{
    void Start()
    {
        //创建，解析
        //两种方法：
        //LitJson 和 JsonUtility

        //创建
        Person person1 = new Person();
        person1.name = "李逍遥";
        person1.age = 18;
        //转成json字符串
        string jsonStr1 = JsonUtility.ToJson(person1);

        Person person2 = new Person();
        person2.name = "王小虎";
        person2.age = 8;

        Persons persons = new Persons();
        persons.persons = new Person[] { person1, person2 };
        string jspnStr2 = JsonUtility.ToJson(persons);
        Debug.Log(jspnStr2);
        //{"persons":[{"name":"李逍遥","age":18},{"name":"王小虎","age":8}]}

        //解析
        Persons ps = JsonUtility.FromJson<Persons>(jspnStr2);
        foreach (Person p in ps.persons)
        {
            Debug.Log(p.name);
            Debug.Log(p.age);
        }
    }
}

2.LitJson

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

public class Hero
{
    public string name;
    public int age;
}
public class Heros
{
    public Hero[] heroes;
}

public class LitJsonDemo : MonoBehaviour
{
    void Start()
    {
        //Func1();
        //Func2();
        Func3();
    }

    //第一种创建和解析的方法
    void Func1()
    {
        Hero hero1 = new Hero();
        hero1.name = "超人";
        hero1.age = 40;
        Hero hero2 = new Hero();
        hero2.name = "蝙蝠侠";
        hero2.age = 45;

        Heros heros = new Heros();
        heros.heroes = new Hero[] { hero1, hero2 };

        //创建json
        string jsonStr = JsonMapper.ToJson(heros);
        Debug.Log(jsonStr);
        //{"heroes":[{"name":"\u8D85\u4EBA","age":40},{"name":"\u8759\u8760\u4FA0","age":45}]}

        //解析json
        Heros hs = JsonMapper.ToObject<Heros>(jsonStr);
        for (int i = 0; i < hs.heroes.Length; i++)
        {
            Debug.Log(hs.heroes[i].name);
            Debug.Log(hs.heroes[i].age);
        }
    }

    //第二种创建json的方法
    void Func2()
    {
        /*JsonData jd = new JsonData();//代表js里面的一个类或者一个数组
        //jd.SetJsonType(JsonType.Array);//说明他是一个js数组 可以不写
        jd["name"] = "超人";
        jd["power"] = 90;
        Debug.Log(jd.ToJson());
        //{"name":"\u8D85\u4EBA","power":90}*/

        JsonData herosJD = new JsonData();
        JsonData hero1JD = new JsonData();
        hero1JD["name"] = "超人";
        hero1JD["power"] = 90;
        JsonData hero2JD = new JsonData();
        hero2JD["name"] = "蝙蝠侠";
        hero2JD["power"] = 80;

        JsonData heros = new JsonData();
        heros.Add(hero1JD);
        heros.Add(hero2JD);

        herosJD["heros"] = heros;

        Debug.Log(herosJD.ToJson());
        //{"heros":[{"name":"\u8D85\u4EBA","power":90},{"name":"\u8759\u8760\u4FA0","power":80}]}
    }

    //第二种解析json的方法
    void Func3()
    {
        string jsonStr = "{'heros':[{'name':'超人','power':90},{'name':'蝙蝠侠','power':80}]}";
        JsonData herosJD = JsonMapper.ToObject(jsonStr);
        JsonData heros = herosJD["heros"];
        foreach (JsonData heroJD in heros)
        {
            Debug.Log(heroJD["name"].ToString());
            Debug.Log((int)heroJD["power"]);
        }
    }
}