视频点目录新增默认排序

src/main/java/com/gunshi/project/xyt/controller/CctvBMenuController.java

@@ -43,6 +43,15 @@ public class CctvBMenuController {
             throw new IllegalArgumentException("当前名称已存在");
         }
         dto.setId(IdWorker.getId());
+        if (Objects.isNull(dto.getOrderIndex())){
+            CctvBMenu one = service.lambdaQuery()
+                    .select(CctvBMenu::getOrderIndex)
+                    .orderByDesc(CctvBMenu::getOrderIndex)
+                    .one();
+            if (Objects.nonNull(one)){
+                dto.setOrderIndex(one.getOrderIndex() + 1);
+            }
+        }
         boolean result = service.save(dto);
         return R.ok(result ? dto : null);
     }

src/main/java/com/gunshi/project/xyt/service/CctvBMenuService.java

@@ -29,6 +29,7 @@ public class CctvBMenuService extends ServiceImpl<CctvBMenuMapper, CctvBMenu>
         if (CollectionUtils.isEmpty(list)){
             return list;
         }
+
         Map<Long, List<CctvBMenu>> listMap = list.stream().collect(Collectors.groupingBy(CctvBMenu::getParentId));
 
         list.forEach(o -> o.setChildren(listMap.get(o.getId())));