資料庫sql：其中offSet是偏移值，pageCount當前頁碼，pageSize是本頁的數量
BasePageSearch：
public int getOffSet() {
if (pageCount == 0 || pageSize == 0) {
return 0;
}
return (pageCount - 1) * pageSize;
}

<select id="selectAllVotes" resultMap="Vote">
    SELECT
    <include refid="voteBaseSelect"
 
/>
    from `vote` v
    WHERE is_delete = 0
    LIMIT #{offSet}, #{pageSize}
</select>