fastJson注解@JSONField指定字段的顺序「建议收藏」

大家好，又见面了，我是你们的朋友全栈君。

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;
    }
}

赋值后转为json字符串后的结果举例：

{"id":2,"direction":0,"type":"input","body":{"no":21},"crc":204}#

字段的顺序即为ordinal标注的顺序