<dependency>
    <groupId>net.sf.json-lib</groupId>
    <artifactId>json-lib</artifactId>
    <version>2.4</version>
    <classifier>jdk15</classifier>
</dependency>

package com.example.demo;

import cn.hutool.core.date.DateUtil;
import net.sf.ezmorph.object.DateMorpher;
import net.sf.json.JSONObject;
import net.sf.json.util.JSONUtils;
import org.junit.jupiter.api.Test;

import java.util.Date;


public class JsonTest {


    public static class Info{
        private Date date;

        private String name;

        public Date getDate() {
            return date;
        }

        public void setDate(Date date) {
            this.date = date;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "Info{" +
                    "date=" + DateUtil.formatDate(date) +
                    ", name='" + name + '\'' +
                    '}';
        }
    }

    @Test
    public void jsonTest(){
        String infoJson = "{\"name\":\"mark\",\"date\":\"2020-01-22\"}";

        JSONObject jsonObject = JSONObject.fromObject(infoJson);
        String[] dateFormats = new String[] {"yyyy-MM-dd"};
        //注册日期转化格式
        JSONUtils.getMorpherRegistry().registerMorpher(new DateMorpher(dateFormats));

        Info info=(Info)JSONObject.toBean(jsonObject, Info.class);
        System.out.println(info.toString());    

    }

}


//输出结果/

Info{date=2020-01-22, name='mark'}