完成 getAllGroupIds 逻辑

src/main/java/com/ruoyi/device/service/impl/GroupServiceImpl.java

@@ -81,6 +81,12 @@ public class GroupServiceImpl implements IGroupService
     @Override
     public void deleteGroup(Long groupId)
     {
+        List<DockGroup> dockGroupList = dockGroupDomain.selectDockGroupByGroupId(groupId);
+        for (DockGroup dockGroup : dockGroupList)
+        {
+            dockGroupDomain.deleteDockGroupById(dockGroup.getId());
+        }
+        groupDomain.deleteGroupByGroupId(groupId);
     }
 
     @Override
@@ -106,6 +112,7 @@ public class GroupServiceImpl implements IGroupService
     @Override
     public List<Long> getAllGroupIds()
     {
-        return null;
+        List<Group> groupList = groupDomain.selectGroupList(new Group());
+        return groupList.stream().map(Group::getGroupId).toList();
     }
 }