package day05;

import java.util.HashMap;

import java.util.Map;

import org.json.JSONException;

import org.json.JSONObject;

import Bean.Diaosi;

public class JsonObjectSample {

    public static void main(String[] args) {

        JSONObject1();

        //createJsonByBean();

        //createJsonByMap();

    }

    private static void JSONObject1() {

        // TODO Auto-generated method stub

        JSONObject wangxiaoer=new JSONObject();

        Object nullObject=null;

        try {

            wangxiaoer.put("name", "wangxiaoer");

            wangxiaoer.put("age",25.2);

            wangxiaoer.put("birthday", "1990-01-01");

            wangxiaoer.put("school", "蓝翔");

            wangxiaoer.put("major", new String[]{"理发","挖掘机"});

            wangxiaoer.put("has_girlfriend",false);

            wangxiaoer.put("car", nullObject);

            wangxiaoer.put("comment", "这是一个注释");

            System.out.println(wangxiaoer.toString());

        } catch (JSONException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    //MAP的方式

    private static void createJsonByMap(){

        Map<String,Object> wangxiaoer=new HashMap<String,Object>();

        Object nullObject=null;

        wangxiaoer.put("name", "wangxiaoer");

        wangxiaoer.put("age",25.2);

        wangxiaoer.put("birthday", "1990-01-01");

        wangxiaoer.put("school", "蓝翔");

        wangxiaoer.put("major", new String[]{"理发","挖掘机"});

        wangxiaoer.put("has_girlfriend",false);

        wangxiaoer.put("car", nullObject);

        wangxiaoer.put("comment", "这是一个注释");

        System.out.println(new JSONObject(wangxiaoer).toString());

    }

    //JAVABEAN的方式

    private static void createJsonByBean(){

        Diaosi wangxiaoer=new Diaosi();

        Object nullObject=null;

        wangxiaoer.setName("wangxiaoer");

        wangxiaoer.setAge(25.2);

        wangxiaoer.setBirthday("1990-01-01");

        wangxiaoer.setSchool("蓝翔");

        wangxiaoer.setMajor(new String[]{"理发","挖掘机"});

        wangxiaoer.setHas_girlfriend(false);

        wangxiaoer.setCar(nullObject);

        wangxiaoer.setComment("这是一个注释");

        System.out.println(new JSONObject(wangxiaoer));

    }

}

package Bean;

public class Diaosi {

    private String name;

    private String school;

    private boolean has_girlfriend;

    private double age;

    private Object car;

    private String[] major;

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getSchool() {

        return school;

    }

    public void setSchool(String school) {

        this.school = school;

    }

    public boolean isHas_girlfriend() {

        return has_girlfriend;

    }

    public void setHas_girlfriend(boolean has_girlfriend) {

        this.has_girlfriend = has_girlfriend;

    }

    public double getAge() {

        return age;

    }

    public void setAge(double age) {

        this.age = age;

    }

    public Object getCar() {

        return car;

    }

    public void setCar(Object car) {

        this.car = car;

    }

    public String[] getMajor() {

        return major;

    }

    public void setMajor(String[] major) {

        this.major = major;

    }

    public String getComment() {

        return comment;

    }

    public void setComment(String comment) {

        this.comment = comment;

    }

    public String getBirthday() {

        return birthday;

    }

    public void setBirthday(String birthday) {

        this.birthday = birthday;

    }

    private String comment;

    private String birthday;

}

{

"car":null,

"birthday": "1990-01-01",

"school":"蓝翔",

"has_girlfrend":false,

"age":25.2,

"name":"王小二",

"comment":"这是一个注释",

"major":["理发","挖掘机"]

}

package day05;

import java.io.File;

import java.io.IOException;

import org.apache.commons.io.FileUtils;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

public class ReadJSONSample {

    public static void main(String[] args) throws IOException, JSONException {

        File file = new File(ReadJSONSample.class.getResource("/wangxiaoer.json").getFile());

        String content = FileUtils.readFileToString(file);

        JSONObject jsonObject = new JSONObject(content);

        if (!jsonObject.isNull("name")) {

            System.out.println("姓名 ：" + jsonObject.getString("name"));

        }

        System.out.println("年龄 ：" + jsonObject.getDouble("age"));

        System.out.println("有没有女朋友 ：" + jsonObject.getBoolean("has_girlfrend"));

        JSONArray list = jsonObject.getJSONArray("major");

        for (int i = 0; i < list.length(); i++) {

            String m = (String) list.get(i);

            System.out.println("专业-" + (i + 1) + m);

        }

    }

}