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public class User {

    @JSONField(name = "userId")
    private int id;

    @JSONField(serialize = false)
    private String name;

    @JSONField(format = "yyyy-MM-dd HH:mm:ss")
    private Date birthday;

    // getter和setter方法
}

1、不想序列化的属性增加@JSONField(serialize=false)

2、通过@JSONField(name="xxx")可以在序列化时，为其指定别名。

3、使⽤ordinal指定字段的顺序

public class BasePackage {

    @JSONField(ordinal = 1)
    private int id;

    @JSONField(ordinal = 2)
    private int direction;

    @JSONField(ordinal = 3)
    private String type;

    @JSONField(ordinal = 5)
    private byte crc;
    
    @JSONField(ordinal = 4)
    private Object body;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getDirection() {
        return direction;
    }

    public void setDirection(int direction) {
        this.direction = direction;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public byte getCrc() {
        return crc;
    }

    public void setCrc(byte crc) {
        this.crc = crc;
    }

    public Object getBody() {
        return body;
    }

    public void setBody(Object body) {
        this.body = body;
    }
}

4、追加时区

     @JSONField(format ="yyyy-MM-dd'T'HH:mm:ss.SSSXXX")
     public Date getBegin_time() {
		return begin_time;
     }