package com.msb.mapper; import com.msb.pojo.UserData; import org.apache.ibatis.annotations.*; import java.util.List; @Mapper public interface Account { //进行查询的函数 @Select("select * from UserData where 账号=#{param1};") public List find(String zhanghao); //进行更新的函数 @Update("update UserData set 我们要修改的值 where 我们选中要修改的值;") public Integer update(); //进行插入的函数 @Insert("insert into UserData values(我们要插入的新值);") public Integer insert(); //进行删除的函数 @Delete(" delete from UserData where 账号=#{param1} ;") public Integer delete(String zhanghao); @Insert("insert into UserData(对应的值) select replace(账号,账号,#{param2}), 要插入的值 from UserData where 账号=#{param1};") public Integer share(String zhanghao_src,String zhanghao_dst); }