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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.wzj.soopin.member.mapper.FansMapper" >
<select id="getFollowedVlogerIds" resultType="com.wzj.soopin.member.domain.po.Fans" parameterType="map">
SELECT vloger_id, is_fan_friend_of_mine FROM t_fans
WHERE fan_id = #{currentUserId}
AND vloger_id IN
<foreach collection='vlogerIds' item='vlogerId' open='(' separator=',' close=')'>
#{vlogerId}
</foreach>
</select>
<!-- 根据vlogerId统计粉丝数量 -->
<select id="countFansByVlogerId" resultType="java.lang.Integer">
SELECT COUNT(*) FROM t_fans
WHERE vloger_id = #{vlogerId}
</select>
</mapper>