利用Jackson进行解析和序列化（java）

引入jar包（版本可以根据自己的需要修改）

compile group: 'com.fasterxml.jackson.core',name:'jackson-databind',version:'2.9.5'

创建类Student用于操作

package test;

import java.util.Date;

public class Student {
    private String name;
    private int age;
    private Date birthDay;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }

     //格式化日期属性
    @JsonFormat(pattern = "yyyy-MM-dd ")
    public Date getBirthDay() {
        return birthDay;
    }
    public void setBirthDay(Date birthDay) {
        this.birthDay = birthDay;
    }
    
    
    @Override
    public String toString() {
        return "Student[name="+this.name+",age="+this.age+",birthDay="+this.birthDay+"]";
    }
}

使用(包含对象（集合等）转json，以及json转对象)

package com.telecom;

import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.telecom.agent.baseline.WindowsBaseLine;
import com.telecom.agent.util.Utils;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;

/**
 * Created by HP on 2018/8/2.
 */
public class Test {
    public static void main(String[] args) throws Exception{
        ObjectMapper mapper = new ObjectMapper();
        Student stu = new Student();
        stu.setName("czz11");
        stu.setAge(24);
        stu.setBirthDay(new Date());
        System.out.println("------------对象转成Json------------------");
        String stuToJson = mapper.writeValueAsString(stu);
        System.out.println(stuToJson);
        System.out.println("------------json转成对象------------------");
        String jsonToStu = "{\"name\":\"czz11\",\"age\":24,\"birthDay\":\"2019-08-06\"}";
        Student stu1 = mapper.readValue(jsonToStu,Student.class);
        System.out.println(stu1);



        Student stu2 = new Student();
        stu2.setName("czz22");
        stu2.setAge(33);
        stu2.setBirthDay(new Date());
        System.out.println("------------集合转成Json------------------");
        List<Student> list = new ArrayList<>();
        list.add(stu);
        list.add(stu2);
        String json2 = mapper.writeValueAsString(list);
        System.out.println(json2);
        System.out.println("------------json转集合------------------");
        //从JSON转换为Map对象的时候，由于Java的类型擦除，所以类型需要我们手动用new TypeReference<T>给出
        List<Student> stis = mapper.readValue(json2,new TypeReference<ArrayList<Student>>(){});

        for (Student ss:stis){
            System.out.println(ss);
        }

    }
}