package com.lovenav.dao; import com.lovenav.entity.Nav; import org.apache.ibatis.annotations.MapKey; import org.apache.ibatis.annotations.Mapper; import org.springframework.stereotype.Repository; import java.util.HashMap; import java.util.List; @Repository @Mapper public interface NavDao { int deleteByNavName(String navName); int insert(Nav record); int insertSelective(Nav record); Nav selectByPrimaryKey(Integer id); int updateByName(Nav record); int updateByPrimaryKey(Nav record); Nav selectAlreadyExist(Nav nav); List