Spring Boot 2.0 java object serialization and deserialization JSON

JSON与Java交互
java的JSON工具包还有FastJson(阿里巴巴开发),Jackson ，Gson Json-lib
FastJson是阿里巴巴著名的JSON序列化与反序列工具包
FastJson国内拥有大量的使用者，拥有API简单 效率高等优点
www.github.com 全世界最著名的开源软件平台

fastjson是阿里巴巴的开源JSON解析库，它可以解析JSON格式的字符串，支持将Java Bean序列化为JSON字符串，也可以从JSON字符串反序列化到JavaBean。 总之就是提供了对象与JSON 之间的转换

Add fastjson dependent on the configuration in pom.xml

		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.2.15</version>
		</dependency>

JSON Java object serialization and de-serialization

		//FastJSON中提供了JSON对象，完成对象与JSON字符串的互相转换
        //JAVA对象-->JSON
		String json = JSON.toJSONString(employee);
		System.out.println(json);
        //JSON -->JAVA对象
		Employee emp = JSON.parseObject(json, Employee.class);
        System.out.println(emp.getEname());

Printout:

 

import java.util.Date;

import com.alibaba.fastjson.annotation.JSONField;

public class Employee {
	private Integer empno;
	private String ename;
	private String job;
	//时间格式
	//@JSONField(format="yyyy-MM-dd HH:mm:ss SSS")
	@JSONField(name = "hiredate" , format="yyyy-MM-dd")
	private Date hdate;
	private Float salary;
	//此属性不转换为JSON格式
	@JSONField(serialize = false)
	private String dname;
	public Integer getEmpno() {
		return empno;
	}
	public void setEmpno(Integer empno) {
		this.empno = empno;
	}
	public String getEname() {
		return ename;
	}
	public void setEname(String ename) {
		this.ename = ename;
	}
	public String getJob() {
		return job;
	}
	public void setJob(String job) {
		this.job = job;
	}
	public Date getHdate() {
		return hdate;
	}
	public void setHdate(Date hdate) {
		this.hdate = hdate;
	}
	public Float getSalary() {
		return salary;
	}
	public void setSalary(Float salary) {
		this.salary = salary;
	}
	public String getDname() {
		return dname;
	}
	public void setDname(String dname) {
		this.dname = dname;
	}
	
	
}

package com.imooc.json;

import java.util.Calendar;

import com.alibaba.fastjson.JSON;

public class FastJsonSample1 {
	public static void main(String[] args) {
		Employee employee = new Employee();
		employee.setEmpno(4488);
		employee.setEname("王晓东");
		employee.setJob("客户经理");
		employee.setSalary(10000f);
		employee.setDname("市场部");
		Calendar c = Calendar.getInstance();
		c.set(2019, 0, 30, 0, 0, 0);
		employee.setHdate(c.getTime());
		//FastJSON中提供了JSON对象，完成对象与JSON字符串的互相转换
        //JAVA对象-->JSON
		String json = JSON.toJSONString(employee);
		System.out.println(json);
        //JSON -->JAVA对象
		Employee emp = JSON.parseObject(json, Employee.class);
		System.out.println(emp.getEname());
	}
}