package com.sarrs;import ch.qos.logback.core.net.SyslogOutputStream;import com.fasterxml.jackson.annotation.JsonInclude;import com.fasterxml.jackson.databind.ObjectMapper;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;/** * Created by hubo7 on 2018/8/20. * test for : https://www.cnblogs.com/yangy608/p/3936848.html */public class jacksonTest {    private static ObjectMapper mapper = new ObjectMapper();    public static void main(String[] args){        Student stu = new Student("小明",112,"男");        String stuStr = null;        JSONObject stuJSONObject = null;        try{            //mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);            stuStr = mapper.writeValueAsString(stu);            stuJSONObject = JSON.parseObject(stuStr);        }catch(Exception e){            System.out.print(e.getMessage());        }        System.out.println(stuStr);        System.out.println(stuJSONObject);        System.out.println(stuJSONObject.toJSONString());    }}@JsonInclude(JsonInclude.Include.NON_NULL)class Student {    private String name;    private Integer id;    private String sex;    private String birthday;    private String clazz;    public Student() {    }    public Student(String name, Integer id, String sex) {        this.name = name;        this.id = id;        this.sex = sex;    }    public String getName() {        return name;    }    public Integer getId() {        return id;    }    public String getSex() {        return sex;    }    public String getBirthday() {        return birthday;    }    public String getClazz() {        return clazz;    }    public void setName(String name) {        this.name = name;    }    public void setId(Integer id) {        this.id = id;    }    public void setSex(String sex) {        this.sex = sex;    }    public void setBirthday(String birthday) {        this.birthday = birthday;    }    public void setClazz(String clazz) {        this.clazz = clazz;    }}