java date attribute json formatting

import java.util.Date;

import org.springframework.format.annotation.DateTimeFormat;

import com.alibaba.fastjson.annotation.JSONField;
import com.fasterxml.jackson.annotation.JsonFormat;

public class User {
	
	private Long id;
	private String username;
	// Date type output to page format
	@JsonFormat(pattern="yyyy-MM-dd",timezone = "GMT+8")  
	// page string formatted as date
	@DateTimeFormat(pattern="yyyy-MM-dd")
	// code to transfer JSON format string
	@JSONField(format="yyyyMMdd")
	private Date birthday;
	private Integer status;
	
	//getter setter 略
	
}