新增文件预览列表修复了任务显示ossId但是无法现在的情况

新增项目编号索引

ruoyi-oa/src/main/resources/mapper/oa/PrefixCounterMapper.xml

@@ -0,0 +1,15 @@
+<?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.ruoyi.oa.mapper.PrefixCounterMapper">
+
+
+    <insert id="upsertAndIncr">
+        INSERT INTO sys_prefix_counter (prefix, seq)
+        VALUES (#{prefix}, LAST_INSERT_ID(1))
+        ON DUPLICATE KEY UPDATE
+            seq = LAST_INSERT_ID(seq + 1)
+
+    </insert>
+</mapper>