mybatis异常：SQL Mapper Configuration,Error parsing Mapper XML,Could not resolve type alias

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SQL Mapper Configuration,Error parsing Mapper XML,Could not resolve type alias
在xxxMapper中

<?xml version="1.0" encoding="UTF-8"?>

< mapper namespace=“com.daos.ClassDao” >
< select id=“queryPeriodDetails” resultType=“com.models.v_class_period_details”>
select a.id as id from t_class_period_relations a join t_dict_period_details b on a.period_detail_id = b.id
where a.status = #{status1} and b.status = #{status2} and a.agency_class_id = #{classId}
< /select>
< /mapper>
用到resultType，必须在mybatis的配置文件中进行别名申明该resultType属于哪个实体类：
< typeAliases>
< !-- 单个实体类配置别名 -->
< typeAlias type=“com.busines.User” alias=“User”/>
< typeAlias type=“com.models.v_class_period_details” alias=“vclassperioddetails”/>
< !-- 或者 用下面的 推荐–>
< package name=“com.busines,com.models” />
< /typeAliases>