1、在service-base模块中添加

创建包handler，创建自动填充类 MyMetaObjectHandler

@Component
public class MyMetaObjectHandler implements MetaObjectHandler { //自动填充
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("gmtCreate",new Date(),metaObject);
        this.setFieldValByName("gmtModified",new Date(),metaObject);
    }

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

2、在实体类添加自动填充注解