MyBais中xxMap.xml中的知识点

添加新的mapper的时候下面两个标红的地方要注意，如果统一约定好命名的话都还好，但是就怕一会这样一会那样的业务代码；
总之小心！

<!-- spring与mybatis整合配置，扫描所有dao,指定的映射器类是接口,接口方法可以用注解来指定 SQL 语句,但是 MyBatis 的映射器 XML 文件也可以用。 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
      p:basePackage="com.cloudwalk.shark.mapper"
      p:sqlSessionFactoryBeanName="sqlSessionFactory"/>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="configLocation" value="classpath:/spring/mybatis.xml"/>

   <property name="typeAliasesPackage" value="com.cloudwalk.shark.model"/>

   <property name="mapperLocations" value="classpath*:mapper/*.xml"/>
    <property name="plugins">
        <array>
            <bean class="com.github.pagehelper.PageHelper">
                <property name="properties">
                    <!--使用下面的方式配置参数，一行配置一个 -->
                    <value>
                        dialect=mysql
                    </value>
                </property>
            </bean>
        </array>
    </property>
</bean>

<resultMap id="advertResult" type="cn.bankbrain.advert.inter.service.advert.result.AdvertResult">
    <id property="id" column="ID" jdbcType="VARCHAR"></id>
    <result property="commercialId" column="COMMERCIAL_ID" jdbcType="VARCHAR"></result>
    <result property="planName" column="PLAN_NAME" jdbcType="VARCHAR"></result>
    <result property="startDate" column="START_DATE" jdbcType="VARCHAR"></result>
    <result property="endDate" column="END_DATE" jdbcType="VARCHAR"></result>
    <result property="version" column="VERSION" jdbcType="VARCHAR"></result>
    <result property="adStatus" column="AD_STATUS" jdbcType="VARCHAR"></result>
    <result property="adType" column="AD_TYPE" jdbcType="VARCHAR"></result>
    <result property="merchantName" column="MERCHANT_NAME" jdbcType="VARCHAR"></result>
    <result property="isForver" column="IS_FORVER" jdbcType="VARCHAR"></result>
    <collection property="advertFileList" ofType="cn.bankbrain.advert.inter.service.advert.result.AdvertFileResult">
        <result  property="filePath" column="FILE_PATH" jdbcType="VARCHAR"/>
        <result  property="fileName" column="FILE_NAME" jdbcType="VARCHAR"/>
    </collection>
</resultMap>

<sql id="querySql">a.id,a.plan_name ,a.version,
  a.start_date ,a.end_date , a.ad_status ,
  m.merchant_name ,a.commercial_id,f.file_path,f.file_name,
  case when a.start_date is null or a.end_date is null
  then 1 else 0 end as is_forver
</sql>

<!--查询条件集-->
<sql id="condition_list">
    where 1=1
    <if test="id != null">AND a.ID = #{id}</if>
    <if test="merchantName != null">AND m.MERCHANT_NAME = #{merchantName}</if>
</sql>

<select id="findAdvertByMap" parameterType="java.util.Map" resultMap="advertResult">
  select <include refid="querySql"></include>
    from cw_pay_advert a join CW_PAY_COMMERCIAL_TENANT m on
    a.commercial_id = m.id
    left join cw_pay_advert_file f on a.id = f.advert_id
    <include refid="condition_list"></include>
</select>