myBatis - resultMap - CLOB

需要Map，但字段里有CLOB

<!-- resultMap -->
<resultMap type="java.util.HashMap" id="propertyMap">
      <result property="attrName" column="ATTR_NAME" jdbcType="VARCHAR" javaType="String"/>
      <result property="attrValue" column="ATTR_VALUE" jdbcType="CLOB" javaType="String"/>
</resultMap>


<select id="findProperty" parameterType="String" resultMap="propertyMap">
        ...
</select>