添加前端支持

bin/router.dart

@@ -18,7 +18,8 @@ Response jsonResponse(dynamic data) {
   );
 }
 
-Router createRouter() {
+/// 创建 API v1 版本的路由
+Router createApiV1Router() {
   final router = Router()
     ..get('/', _rootHandler)
     ..get("/album", _listAlbumHandler)
@@ -31,6 +32,16 @@ Router createRouter() {
   return router;
 }
 
+/// 创建主路由器，将 API v1 挂载到 /api/v1 路径下
+Router createRouter() {
+  final router = Router();
+  
+  // 将 API v1 路由挂载到 /api/v1 路径下
+  router.mount('/api/v1', createApiV1Router().call);
+  
+  return router;
+}
+
 Response _rootHandler(Request req) {
   return Response.ok('Hello, World!\n');
 }
@@ -113,8 +124,26 @@ Future<Response> _getPhotoFileHandler(Request req) async {
     return Response.notFound('File not found');
   }
 
+  // ✅ 修复：使用 StreamController 包装，确保在客户端断开时关闭文件流
+  final streamController = StreamController<List<int>>();
+  final fileStream = file.openRead();
+  
+  // 订阅文件流，并将数据转发到响应流
+  final subscription = fileStream.listen(
+    streamController.add,
+    onError: streamController.addError,
+    onDone: streamController.close,
+    cancelOnError: true,
+  );
+  
+  // 当客户端取消订阅时（断开连接），取消文件流订阅并关闭文件
+  streamController.onCancel = () {
+    subscription.cancel();
+    return Future.value();
+  };
+
   return Response.ok(
-    file.openRead(),
+    streamController.stream,
     headers: {
       'Content-Type': photo.mimeType,
       'Content-Length': photo.fileSize.toString(),
@@ -122,8 +151,6 @@ Future<Response> _getPhotoFileHandler(Request req) async {
   );
 }
 
-
-
 Future<Response> _getPhotosOfAlbumHander(Request req) async {
   final idParam = req.params['id'];
   if (idParam == null) {