First, the resolution of simple JSON object

package com.point9.a_basic;

import org.json.JSONException;
import org.json.JSONObject;

import com.point9.b_entity.Student;

/**
 * 
 * @author point9
 * JSON解析：---方式一：基本的JSON解析
 * 案例1：解析最外层为{}的简单对象的JSON数据
 * 		通过JsonObject获取
 */
public class Test01 {
	public static void main(String[] args) throws JSONException {
		String data = "{name:'zs',age:30}";
		//最外层为{}的简单JSON对象用JsonObject解析
		JSONObject jb = new JSONObject(data);
		//取出数据并存储到对应的实体类中
		String name = jb.getString("name");
		int age = jb.getInt("age");
		//System.out.println(name+"----"+age);//测试取出的数据
		Student st = new Student(name,age);
		System.out.println(st.toString());
	}
}

Two JSON data, parsing outermost} {complex (nested) object of

package com.point9.a_basic;

import org.json.JSONException;
import org.json.JSONObject;

import com.point9.b_entity.Score;
import com.point9.b_entity.Student;

/**
 * 
 * @author point9
 * JSON解析:---方式一：基本的JSON解析
 * 案例2：解析最外层为{}的复杂(有嵌套的)对象的JSON数据
 * 		 通过JsonObject获取
 */
public class Test02 {
	public static void main(String[] args) throws JSONException {
		String data = "{name:'zs',age:30,score:{english:80,chinese:85}}";
		JSONObject st = new JSONObject(data);
		String name = st.getString("name");
		int age = st.getInt("age");
		//内层嵌套的JSON对象通过getJSONObject()获取
		JSONObject sc = st.getJSONObject("score");
		int english = sc.getInt("english");
		int chinese = sc.getInt("chinese");
		//将数据存储到对应的实体类中
		Student student = new Student(name, age, new Score(english, chinese));
		System.out.println(student.toString());
	}
}

Three JSON data, parsing the outermost layer [] complex (with nested) arrays

package com.point9.a_basic;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.point9.b_entity.Score;
import com.point9.b_entity.Student;

/**
 * 
 * @author point9
 * JSON解析:---方式一：基本的JSON解析
 * 案例3：解析最外层为[]的复杂(有嵌套的)数组的JSON数据
 * 		通过JsonArray解析
 */
public class Test03 {
	public static void main(String[] args) throws JSONException {
		String data = "[{name:'zs',age:30,score:{english:80,chinese:85}},{name:'ls',age:40,score:{english:59,chinese:89}}]";
		JSONArray array = new JSONArray(data);
		//数组的长度array.length()
		for (int i = 0; i < array.length(); i++) {
			//根据下标获取jsonObject对象
			JSONObject st = array.getJSONObject(i);
			String name = st.getString("name");
			int age = st.getInt("age");
			//Student student = new Student(name, age);
			//通过getJSONObject()获得JSON对象中嵌套的JSON对象
			JSONObject sc = st.getJSONObject("score");
			int english = sc.getInt("english");
			int chinese = sc.getInt("chinese");
			//student.setScroe(new Score(english, chinese));
			Student student = new Student(name, age, new Score(english, chinese));
			System.out.println(student);
		}
	}
}

Fourth, the known objects, generating data JSON

package com.point9.a_basic;

import org.json.JSONObject;

import com.point9.b_entity.Score;
import com.point9.b_entity.Student;

/**
 * 
 * @author point9
 * JSON解析:---方式一：基本的JSON解析
 * 案例4:已知对象,生成JSON数据
 * 		JsonObject
 */
public class Test04 {
	public static void main(String[] args) {
		//实例化对象
		Student st = new Student("Point9", 22,new Score(66, 88));
		//传入对象,生成json数据
		JSONObject jb = new JSONObject(st);
		String data = jb.toString();
		System.out.println(data);
	}
}

Fifth, known array or collection, data generated json

package com.lmw.a_basic;

import java.util.ArrayList;
import java.util.List;

import org.json.JSONArray;

import com.point9.b_entity.Score;
import com.point9.b_entity.Student;

/**
 * 
 * @author point9
 * JSON解析:---方式一：基本的JSON解析
 * 案例5： 已知数组或集合，生成json数据----JsonArray
 */
public class Test05 {
	public static void main(String[] args) {
		List<Student> list = new ArrayList<Student>();
		Student st1 = new Student("zs", 20, new Score(60, 70));
		Student st2 = new Student("ls", 30, new Score(68, 72));
		list.add(st1);
		list.add(st2);
		//传入集合,生成json数组
		JSONArray array = new JSONArray(list);
		System.out.println(array.toString());
	}
}