fix bug: 未找到类

yanxuan-qc-change-system-dal/src/main/resources/mybatis/mapper/ChangeConfigMapper.xml

+<!--
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.netease.mail.yanxuan.change.dal.mapper.ChangeConfigMapper">
@@ -155,4 +156,4 @@
       update_time = #{updateTime,jdbcType=BIGINT}
     where id = #{id,jdbcType=BIGINT}
   </update>
-</mapper>
\ No newline at end of file
+</mapper>-->