dao
    public interface Class1Mapper extends Mapper {

    }
    entity
    @Table(name = “数据库表名”)
    @Getter
    @Setter
    @ToString
    public class Class1DO extends BaseDO {
    Integer 数据库表字段名1;
    Integer 数据库表字段名2;
    String 数据库表字段名n;
    ………
    }