BUGFIX:系统模特上传;

src/main/java/com/ai/da/service/impl/LibraryServiceImpl.java

@@ -205,7 +205,9 @@ public class LibraryServiceImpl extends ServiceImpl<LibraryMapper, Library> impl
             sysFile.setMd5(uploadDTO.getMd5());
             sysFile.setCreateDate(new Date());
             sysFileMapper.insert(sysFile);
-            return null;
+            Library library = new Library();
+            library.setName("成功");
+            return library;
         }else {
             throw new BusinessException("unknown model type");
         }