mybatis 注解 if

package cn.erongcai.hrplatform.dao.demand;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import com.baomidou.mybatisplus.mapper.BaseMapper;

import cn.erongcai.hrplatform.model.demand.DemandComment;

@Mapper
public interface DemandCommentMapper extends BaseMapper{

@Select("")
public List listDemandComment(@Param("demandId") Long demandId, @Param("startNo") Integer pageNo, @Param("pageSize") Integer pageSize);

}

mybatis 注解 if