MybatisPlus自动填充字段的操作

 //增加实现
    @TableField(value = "create_time",fill = FieldFill.INSERT)
    private Date createTime;

    //增加或修改实现
    @TableField(value = "update_time",fill = FieldFill.INSERT_UPDATE)
    private Date updateTime;

/**
 * @Author dhp
 * @create 2025-02-24 15:35
 */
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        //根据名字设置属性值
        this.setFieldValByName("createTime",new Date(),metaObject);
        this.setFieldValByName("updateTime",new Date(),metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("updateTime",new Date(),metaObject);
    }
}

  @Test
    void contextLoads() {

        User user = new User();
        user.setUserCode("123");
        user.setUserName("张三");
        user.setAddress("山东潍坊");
        user.setAge(25);
        //不进行手动赋值
//        user.setCreateTime(new Date());
//        user.setUpdateTime(new Date());
        userService.save(user);
    }