mapper

最新推荐文章于 2022-01-19 22:59:41 发布

weixin_43670105

最新推荐文章于 2022-01-19 22:59:41 发布

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/这是一个操作数据库的方法1
//@Mapper
//public interface AdminMapper {
    //根据id来查询数据
    //@Select("select * from admin where admin_id=#{adminId}")
    //public Admin getAdminByadminId(Integer adminId);

    //删除 返回多少行
    //@Delete("delete from admin where admin_id=#{adminId}")
    //public int deleteAdminByadminId(Integer adminId);

    //插入 返回多少行
    //@Options(useGeneratedKeys = true,keyProperty = "adminId")  //主键
    //@Insert("insert into admin(admin_name,admin_password,admin_authority_status,admin_create_time) values(#{adminName,adminPassword,adminAuthorityStatus,adminCreateTime})")
    //public int insertAdmin(Admin admin);

    //更新
    //@Update("update admin set admin_name=#{adminName} where admin_id=#{adminId}")
    //public int updateAdmin(Admin admin);
//}



//这是一个操作数据库的方法2
@Mapper
public interface AdminMapper {

    public Admin getAdminByadminId(Integer adminId);


}