zhegongda/src/main/java/com/muzhi/zgd/mapper/JiaozhigongMapper.java

package com.muzhi.zgd.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.muzhi.zgd.entity.Bumen;
import com.muzhi.zgd.entity.Jiaozhigong;
import org.springframework.stereotype.Repository;

//在对应的Mapper上面继承基本的类BaseMapper
@Repository//代表持久层，或者加入@Mapper注解
public interface JiaozhigongMapper extends BaseMapper<Jiaozhigong> {
    //所有的CRUD操作都已经编写完成了
}