基于mybatis中<include>标签的作用说明

<sql id="sqlid">
  res_type_id,res_type
</sql>
<select id="selectbyId" resultType="com.property.vo.PubResTypeVO">
  select
  <include refid="sqlid"/>
  from pub_res_type
</select>

<include refid="sqlid"/>

<include refid="namespace.sqlid"/>

<select id="queryPubResType" parameterType="com.property.vo.PubResTypeVO" resultMap="PubResTypeList">
  select a.res_type_id,
  <include refid="com.common.dao.FunctionDao.SF_GET_LNG_RES_TYPE">
    <property name="AI_RES_TYPE_ID" value="a.res_type_id"/>
    <property name="lng" value="#{lngId}"/>
    <property name="female" value="'女'"/>
  </include> as res_type
  from  pub_res_type a
</select>

	<!--需要include的代码块-->
	<sql id="luck">
		#{luck}||'${luck}'
	</sql>
	<!--property标签name属性和参数名一样,但值不同-->
	<select id="test1" resultType="java.lang.String">
		select
		<include refid="luck">
			<property name="luck" value="lucktheuniverse"/>
		</include>
		from dual
	</select>
	<!--property标签name属性和参数名一样,但值为#号方式传值-->
	<select id="test2" resultType="java.lang.String">
		select
		<include refid="luck">
			<property name="luck" value="#{luck}"/>
		</include>
		from dual
	</select>
	<!--property标签name属性和参数名一样,但值为$方式传值-->
	<select id="test3" resultType="java.lang.String">
		select
		<include refid="luck">
			<property name="luck" value="${luck}"/>
		</include>
		from dual
	</select>
	<!--property标签name属性和参数名不同-->
	<select id="test4" resultType="java.lang.String">
		select
		<include refid="luck">
			<property name="luck1" value="lucktheuniverse"/>
		</include>
		from dual
	</select>

String test1(@Param(value = "luck") String luck);
String test2(@Param(value = "luck") String luck);
String test3(@Param(value = "luck") String luck);
String test4(@Param(value = "luck") String luck);

String test1 = mapper.test1("luck123");
String test2 = mapper.test2("luck123");
String test3 = mapper.test1("luck123");
String test4 = mapper.test2("luck123");

test1: luck123lucktheuniverse
test2: 报错
test3: luck123luck123
test4: luck123luck123

select #{luck}||'#{luck}' from dual

select ?||'?' from dual

 <sql id="luck">
 #{luck}||${luck}
 </sql>