MybatisPlus 自动写入创建时间和更新时间

@Data
@TableName("user")
public class UserDO {
    @TableId(type = IdType.AUTO)
    private Long id;
    private String userId;
    private String username;
    private String password;
    @TableField(fill = FieldFill.INSERT)
    private LocalDateTime gmtCreate;
    @TableField(fill = FieldFill.INSERT_UPDATE)
    private LocalDateTime gmtModified;
}

@TableField(fill = FieldFill.INSERT)
private LocalDateTime gmtCreate;
@TableField(fill = FieldFill.INSERT_UPDATE)
private LocalDateTime gmtModified;

@Configuration
public class MybatisObjectHandler implements MetaObjectHandler {
    //写入时间
    @Override
    public void insertFill(MetaObject metaObject) {
        setFieldValByName("gmtCreate", LocalDateTime.now(),metaObject);
        setFieldValByName("gmtModified", LocalDateTime.now(),metaObject);
    }
     //修改时间
    @Override
    public void updateFill(MetaObject metaObject) {
        setFieldValByName("gmtModified",LocalDateTime.now(),metaObject);
    }
}