MyBatis 存储过程

From《MyBatis从入门到精通》

    <!--
        6.2 存储过程

        6.2.1 第一个存储过程
            delimiter ;;
            create procedure 'select_user_by_id'(
                in userId bigint,
                out userName varchar(50),
                out userPassword varchar(50),
                out userEmail varchar(50),
                out userInfo TEXT,
                out headImg blob,
                out createTime datetime)
            begin
                select user_name,user_password,user_email,user_info,user_info,head_img,create_time
                into userName,userPassword,userEmail,userInfo,headImg,createTime
                from sys_user
                where id=userId;
            end
            ;;
            delimiter ;
    -->

    <!--
        存储过程不支持MyBatis的二级缓存，因此为了避免缓存配置出错，
        直接将select标签的useCache属性设置为false。headImg还特
        别设置了javaType。在MyBatis映射的Java类中，不推荐使用基本
        类型，数据库BLOB类型对应的Java类型通常都是写长bute[]字节数
        组的形式的，且byte是基本类型，所以在设置javaType时，要使用
        带下划线的方式。如果不设置，则MyBatis默认使用Byte类型
    -->
    <select id="selectUserById" statementType="CALLABLE" useCache="false">
        {call select_user_by_id(
          #{id,mode=IN},
          #{userName,mode=OUT,jdbcType=VARCHAR},
          #{userPassword,mode=OUT,jdbcType=VARCHAR},
          #{userEmail,mode=OUT,jdbcType=VARCHAR},
          #{userInfo,mode=OUT,jdbcType=VARCHAR},
          #{headImg,mode=OUT,jdbcType=BLOB,javaType=_byte[]},
          #{createTime,mode=OUT,jdbcType=TIMESTAMP}
        )}
    </select>

    <!--
        6.2.2 第二个存储过程

            delimiter ;;
            create procedure 'select_user_page'(
                in userName varchar(50),
                in _offset bigint,
                in _limit bigint,
                out total bigint)
            begin
                # 查寻数据总数
                select count(*) into total
                from sys_user
                where user_name like concat('%',userName,'%')

                #分页查询数据
                select * from sys_user
                where user_name like concat('%',userName,'%')
                limit _offset, _limit;
            end
            ;;
            delimiter ;;
    -->

    <select id="selectUserPage" statementType="CALLABLE" useCache="false"
            resultMap="userMap">
        {call select_user_page(
          #{userName,mode=IN),
          #{offset,mode=IN),
          #{limit,mode=IN),
          #{total,mode=OUT,jadbType=biging}
        )}
    </select>

    <!--
        6.2.3 第三个和第四存储过程

            # 第三个存储过程
            # 保存用户信息和角色关联信息
            delimiter ;;
            create procedure 'insert_user_and_roles'
                out userId bigint,
                in userName varchar(50),
                in userPassword varchar(50),
                in userEmail varchar(50),
                in userInfo text,
                in headImg blob,
                out createTime datetime,
                in roleIds varchar(200))
            begin
            #设置当前时间
            set crateTime=NOW();

            #插入数据
            insert into sys_user(user_name,user_password,user_email,user_info,head_img,create_time)
            values (userName,userPassword,userEmail,userInfo,headImg,createTime);

            #获取自增主键
            select last_insert_id() into userId;

            #保存用户和角色关系数据
            set roleIds = concat(',',roleIds,',');
            insert into sys_user_role(user_id,role_id);
            select userId, id from sys_role
            where instr(roleIds,concat(',',id,','))>0;
        end
        ;;
        delimiter ;
    -->
    <insert id="insertUserAndRoles" statementType="CALLABLE">
        {call insert_user_and_roles(
          #{user.id,mode=OUT,jdbcType=BIGINT},
          #{user.userName,mode=in},
          #{user.userPassword,mode=in},
          #{user.Email,mode=in},
          #{user.Info,mode=in},
          #{user.headImg,mode=in},
          #{user.createTime,mode=OUT,jdbcType=TIMESTAMP},
          #{roleIds,mode=IN}
        )}
    </insert>

    <!--
            #第四个存储过程
            delimiter ;;
                create procedure 'delete_user_by_id'(in userId bigint)
                begin
                    delete from sys_user_role where user_id=userId;
                    delete from sys_user where id=userId;
                end
                ;;
            delimiter;;
    -->
    <delete id="deleUserById" statementType="CALLABLE">
        {call delete_user_by_id(#{id,mode=in})}
    </delete>