fixed bug：后台配置的推荐视频未生效

src/main/java/com/qkdata/biz/management/controller/RecommendConfigController.java

 package com.qkdata.biz.management.controller;
 
 
+import com.baomidou.mybatisplus.core.conditions.Wrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.qkdata.biz.common.BizConstants;
 import com.qkdata.biz.management.entity.RecommendConfigPO;
 import com.qkdata.biz.management.service.CourseService;
@@ -63,8 +65,15 @@ public class RecommendConfigController {
     @RequiresRoles(value = {BizConstants.ROLE_ADMIN,BizConstants.ROLE_OPERATOR},logical = Logical.OR)
     @SysLog("添加推荐")
     public Result<String> add(@RequestBody List<RecommendConfigPO> list){
+        int sortNo = 0;
+        RecommendConfigPO recommendConfigPO = configService.getOne(Wrappers.<RecommendConfigPO>lambdaQuery().orderByDesc(RecommendConfigPO::getSortNo).last("limit 1"));
+        if (recommendConfigPO != null){
+            sortNo = recommendConfigPO.getSortNo() + 1;
+        }
         for (RecommendConfigPO po : list){
+            po.setSortNo(sortNo);
             configService.save(po);
+            sortNo++;
         }
         return Result.succeed("ok");
     }

src/main/resources/mappers/management/courseMapper.xml

@@ -94,7 +94,7 @@
         WHERE c.is_del = 0
         and  c.`status` = 'UP'
         and c.allow = 'ALL'
-        ORDER BY sort_no ASC,c.create_time DESC
+        ORDER BY sort_no ASC DESC
     </select>
     <select id="findListByTags" resultType="com.qkdata.biz.management.entity.CoursePO">
         SELECT c.*