package com.example.springboot.mapper; import org.apache.ibatis.annotations.*; import com.example.springboot.entity.alarmmg; import java.util.List; @Mapper public interface AlarmMapper { @Select("SELECT * FROM alarmmg where endTime is not null and to_days(timeon)=to_days(now())") List selectAll();// 查询当天所有已结束报警信息 @Select("SELECT count(*) FROM alarmmg where endTime is null and content=#{content}") short selectnullti(String content);// 根据报警内容查询结束时间为null的 @Insert("INSERT INTO `canadames`.`alarmmg`( `content`,`timeon`) VALUES ( #{content},now())") void Insertalarm(String content);// 添加一条报警数据 @Insert("UPDATE `canadames`.`alarmmg` set endTime= now() where endTime is null and content=#{content}") void updatealarm(String content);// 修改对应报警内容的结束时间 @Select("SELECT * FROM alarmmg where timeon between #{sj1} and #{sj2}") List selecttime(String sj1, String sj2);// 根据日期查询报警信息 }