src/Jiaowu.Api/Controllers/BaseDataController.cs

@@ -557,7 +557,7 @@ public sealed class BaseDataController(AppDbContext db, IAppCache cache) : Contr
                 .Select(x => new ClassroomListItem(
                     x.Id, x.Code, x.Name, x.BuildingId, x.Building!.CampusId,
                     x.Building.Name, x.Building.Campus!.Name, x.Capacity,
-                    x.RoomType, x.TeachingVenueNature, x.Equipment,
+                    x.Floor, x.RoomType, x.TeachingVenueNature, x.Equipment,
                     x.IsEnabled, x.SortOrder))
                 .ToListAsync(cancellationToken);
             return Ok(new PagedResult<ClassroomListItem>(
@@ -578,6 +578,7 @@ public sealed class BaseDataController(AppDbContext db, IAppCache cache) : Contr
                     x.Building.Name,
                     x.Building.Campus!.Name,
                     x.Capacity,
+                    x.Floor,
                     x.RoomType,
                     x.TeachingVenueNature,
                     x.Equipment,
@@ -645,6 +646,7 @@ public sealed class BaseDataController(AppDbContext db, IAppCache cache) : Contr
             Name = request.Name.Trim(),
             BuildingId = request.BuildingId,
             Capacity = request.Capacity,
+            Floor = request.Floor,
             RoomType = request.RoomType.Trim(),
             TeachingVenueNature = request.TeachingVenueNature == 0
                 ? TeachingVenueNature.GeneralClassroom
@@ -668,6 +670,7 @@ public sealed class BaseDataController(AppDbContext db, IAppCache cache) : Contr
         ApplyCatalog(entity, request);
         entity.BuildingId = request.BuildingId;
         entity.Capacity = request.Capacity;
+        entity.Floor = request.Floor;
         entity.RoomType = request.RoomType.Trim();
         entity.TeachingVenueNature = request.TeachingVenueNature == 0
             ? TeachingVenueNature.GeneralClassroom
@@ -822,6 +825,7 @@ public sealed record ClassroomRequest(
     string Code, string Name, int SortOrder, bool IsEnabled,
     Guid BuildingId,
     [Range(1, 1000)] int Capacity,
+    [Range(1, 99)] int Floor,
     [Required, MaxLength(40)] string RoomType,
     TeachingVenueNature TeachingVenueNature,
     [MaxLength(300)] string? Equipment)
@@ -879,6 +883,7 @@ public sealed record ClassroomListItem(
     string BuildingName,
     string CampusName,
     int Capacity,
+    int Floor,
     string RoomType,
     TeachingVenueNature TeachingVenueNature,
     string? Equipment,

src/Jiaowu.Api/Domain/Academic/OrganizationEntities.cs

@@ -44,6 +44,7 @@ public sealed class Classroom : CatalogEntity
 {
     public Guid BuildingId { get; set; }
     public Building? Building { get; set; }
+    public int Floor { get; set; } = 1;
     public int Capacity { get; set; }
     public string RoomType { get; set; } = "普通教室";
     public TeachingVenueNature TeachingVenueNature { get; set; } =

src/Jiaowu.Api/Infrastructure/Persistence/AppDbContext.cs

@@ -258,11 +258,14 @@ public sealed class AppDbContext(DbContextOptions<AppDbContext> options)
             .HasForeignKey(x => x.CampusId)
             .OnDelete(DeleteBehavior.Restrict);
 
-        builder.Entity<Classroom>()
+        builder.Entity<Classroom>(entity =>
-            .HasOne(x => x.Building)
+        {
+            entity.Property(x => x.Floor).HasDefaultValue(1);
+            entity.HasOne(x => x.Building)
                 .WithMany()
                 .HasForeignKey(x => x.BuildingId)
                 .OnDelete(DeleteBehavior.Restrict);
+        });
 
         builder.Entity<AcademicTerm>(entity =>
         {