【JAVA基础】Mybatis示例

固定时间范围查询

    <select id="selectPaidList" resultType="com.hand.htms.ifp.entity.IfpShipment">
        SELECT
        *
        FROM
        ifp_shipment t1
        WHERE (t1.creation_date > #{beginDate} and t1.creation_date&lt;#{endDate})
        and ( t1.shipper_pay_status = 'PAID' or t1.shipper_pay_status = 'PARTIALPAID' )
        <if test="tenantId !=null and tenantId != 1">
            and t1.tenant_id = #{tenantId}
        </if>
    </select>

  <select id="selectShipment" resultType="com.hand.htms.ifp.entity.IfpShipment">
        SELECT
        *
        FROM
        ifp_shipment t1
        WHERE t1.shipment_status =#{status}
        <if test="status != null and status == 'TO_LOAD'">
            and (t1.creation_date > #{beginDate} and t1.creation_date&lt;#{endDate})
        </if>
        <if test="status != null and status == 'TO_UNLOAD'">
            and (t1.load_date > #{beginDate} and t1.load_date&lt;#{endDate})
        </if>
        <if test="status != null and status == 'TO_SIGN'">
            and (t1.unload_date > #{beginDate} and t1.unload_date&lt;#{endDate})
        </if>
        <if test="status != null and status == 'SIGN'">
            and (t1.sign_date > #{beginDate} and t1.sign_date&lt;#{endDate})
        </if>
        <if test="tenantId !=null and tenantId != 1">
            and t1.tenant_id = #{tenantId}
        </if>
    </select>

模糊查询

    <select id="selectlist" resultType="com.hand.htms.ifp.dto.IfpShipmentAppDTO">
        select
        <include refid = "BaseSql"/>
        from
            ifp_shipment iil
        where
            iil.driver_gid = #{driverGid}
        and
            iil.shipment_status = #{shipmentStatus}
        <if test="xid != null">
          <bind name="xidLike" value="'%'+xid+'%'"/>
            and iil.xid like #{xidLike}
        </if>
        <if test="vehicleGid != null">
            and iil.vehicle_gid = #{vehicleGid}
        </if>
        <if test="sourceName != null">
            <bind name="sourceNameLike" value="'%'+sourceName+'%'"/>
            and iil.source_name like #{sourceNameLike}
        </if>
        <if test="sourcePhone != null">
            <bind name="sourcePhoneLike" value="'%'+sourcePhone+'%'"/>
            and iil.source_phone like #{sourcePhoneLike}
        </if>
        <if test="destName != null">
            <bind name="destNameLike" value="'%'+destName+'%'"/>
            and iil.dest_name like #{destNameLike}
        </if>
        <if test="destPhone != null">
            <bind name="destPhoneLike" value="'%'+destPhone+'%'"/>
            and iil.dest_phone like #{destPhoneLike}
        </if>
    </select>

精确查询

    <select id="listProject" resultType="com.inja.spot.domain.entity.Project">
        SELECT
        sbp.project_name,
        sbp.factory_meaning,
        sbp.project_code,
        sbp.project_id,
        sbp.remark,
        delete_flag
        FROM
        spot_bd_project sbp
        WHERE
        tenant_id = #{organizationId}
        AND
        delete_flag = 'N'
        <if test="projectName != null and projectName != ''">
            and sbp.project_name like concat('%',#{projectName},'%')
        </if>
        <if test="projectCode != null">
            and sbp.project_code = #{projectCode}
        </if>
        <if test="factoryMeaning != null and factoryMeaning != ''">
            and sbp.factory_meaning like concat('%',#{factoryMeaning},'%')
        </if>
        ORDER BY sbp.creation_date DESC
    </select>

String型需要校验不为null和不为空，Long型只需要校验不为null；需要使用concat拼接，否则会有SQL注入的风险。

连表查询

https://blog.csdn.net/Java_is_NO_1/article/details/117933024

insert操作

   <!--id属性:表示映射的接口中方法的名称,直接标签的内容部来编写SQL语句-->
    <!--useGeneratedKeys="true"表示开启某个字段的值递增(大部分都是主键递增)
        keyProperty="uid"表示将表中哪个字段进行递增
        -->
    <insert id="insert" useGeneratedKeys="true" keyProperty="aid">
        INSERT INTO t_address (
            uid, `name`, province_name, province_code, city_name, city_code, area_name, area_code, zip,
            address, phone, tel,tag, is_default, created_user, created_time, modified_user, modified_time
        ) VALUES (
                     #{uid}, #{name}, #{provinceName}, #{provinceCode}, #{cityName}, #{cityCode}, #{areaName},
                     #{areaCode}, #{zip}, #{address}, #{phone}, #{tel}, #{tag}, #{isDefault}, #{createdUser},
                     #{createdTime}, #{modifiedUser}, #{modifiedTime}
                 )
    </insert>

单一参数的情况

    <select id="listRegion" resultType="com.inja.spot.domain.entity.Region">
        SELECT
        sbr.region_id,
        sbr.country_name,
        sbr.country_id,
        sbr.region_name,
        sbr.prov_name,
        sbr.prov_id,
        sbr.city_name,
        sbr.city_id,
        sbr.region_meaning
        FROM
        spot_bd_region sbr
        WHERE
        sbr.delete_flag = 'N'
        <if test="_parameter  != null and _parameter  != ''">
            and sbr.region_name like concat('%',#{_parameter },'%')
        </if>
        ORDER BY sbr.creation_date DESC
    </select>

不进入Mapper查询

     if (null != lovVlaues && lovVlaues.size() > 0) {
            //将lovVlaues中的value值（租户Num）取出，并进行非空校验
            List<String> tags = lovVlaues.stream().filter(lovValueDTO -> lovValueDTO.getTag() != null)
                    .map(lovValueDTO -> lovValueDTO.getTag()).collect(Collectors.toList());
            if (null != tags && tags.size() > 0) {
                //取自营店铺的租户id
                sellerTenantId = Long.parseLong(tags.get(0));
                //取自营店铺（卖家）店铺信息
                sellerShop = shopRepository.selectByCondition(Condition.builder(Shop.class)
                        .andWhere(Sqls.custom().andEqualTo(Shop.FIELD_TENANT_ID, sellerTenantId)).build())
                        .stream().findFirst().orElse(null);
            }
        }

值集示例

SELECT
 ifp_shipment.id,
         ifp_shipment.xid,
	ic.name as shipper_name,
        id.name as driver_name,
        iv.lpn
FROM
	ifp_shipment
        left join ifp_company ic on ifp_shipment.shipper_company_id = ic.id
        left join ifp_driver id on ifp_shipment.driver_gid = id.id
        left join ifp_vehicle iv on ifp_shipment.vehicle_gid = iv.id
WHERE
	 1=1
 <if test='organizationId != null'>
            and ifp_shipment.tenant_id = #{organizationId}
        </if>
<if test='xid != null and xid != ""'>
	AND  ifp_shipment.xid LIKE concat('%', concat(#{xid}, '%'))
	</if>
<if test='shipperName!= null and shipperName!= ""'>
	AND  ic.name LIKE concat('%', concat(#{shipperName}, '%'))
	</if>
<if test='driverName!= null and driverName!= ""'>
	AND  id.name LIKE concat('%', concat(#{driverName}, '%'))
	</if>

selectOptional查询

   @Override
    public ReturnT execute(final Map<String, String> map, final SchedulerTool tool) {
        IfpShipment ifpShipment = new IfpShipment();
        Criteria criteria = new Criteria(ifpShipment);
        criteria.setWhereSql("A.pro_platform_shipment_status = 'N' AND A.vehicle_status = 'normal' AND (A.locating_information_status = 'normal' or A.locating_information_status = 'abnormal') AND A.unload_time_status = 'normal' AND A.unload_quantity_status = 'normal'");
        List<IfpShipment> ifpShipmentList = ifpShipmentService.selectOptional(ifpShipment,criteria);
        if(!CollectionUtils.isEmpty(ifpShipmentList)){
            cuzIfpShipmentService.shipmentListPush(ifpShipmentList);
        }
        return ReturnT.SUCCESS;
    }