diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 6854d03..584d9aa 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -20,6 +20,7 @@
     <application
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher"
+        android:usesCleartextTraffic="true"
         android:label="学光自习室">
         <activity
             android:name=".MainActivity"
diff --git a/lib/config/config.dart b/lib/global/config.dart
similarity index 86%
rename from lib/config/config.dart
rename to lib/global/config.dart
index 60ea124..5cc6c0b 100644
--- a/lib/config/config.dart
+++ b/lib/global/config.dart
@@ -19,6 +19,9 @@ class Config {
     return "wss://xueguang.test.tuzuu.com/ws";
   }
 
+  ///网页域名地址
+  static String get webUrl => "http://xueguang.test.tuzuu.com";
+
   ///声网APPid
   static String get swAppId => "011c2fd2e1854511a80c1aebded4eee7";
 }
diff --git a/lib/global/event_bus.dart b/lib/global/event_bus.dart
new file mode 100644
index 0000000..4eecb13
--- /dev/null
+++ b/lib/global/event_bus.dart
@@ -0,0 +1,33 @@
+import 'dart:async';
+
+/// 全局事件总线
+class EventBus {
+  EventBus._();
+
+  static final _instance = EventBus._();
+
+  factory EventBus() => _instance;
+
+
+  // StreamController，广播模式可以让多个地方监听
+  final StreamController<GlobalEvent> _controller = StreamController.broadcast();
+
+  /// 发送事件
+  void fire(GlobalEvent event) {
+    _controller.add(event);
+  }
+
+  /// 监听事件
+  Stream<GlobalEvent> get stream => _controller.stream;
+
+  /// 关闭流（一般应用生命周期结束时调用）
+  void dispose() {
+    _controller.close();
+  }
+}
+
+/// 事件类型枚举
+enum GlobalEvent {
+  unauthorized, // 401 需要重新登录
+  // 以后可以扩展其他事件
+}
diff --git a/lib/config/theme/base/app_colors_base.dart b/lib/global/theme/base/app_colors_base.dart
similarity index 100%
rename from lib/config/theme/base/app_colors_base.dart
rename to lib/global/theme/base/app_colors_base.dart
diff --git a/lib/config/theme/base/app_text_style.dart b/lib/global/theme/base/app_text_style.dart
similarity index 100%
rename from lib/config/theme/base/app_text_style.dart
rename to lib/global/theme/base/app_text_style.dart
diff --git a/lib/config/theme/base/app_theme_ext.dart b/lib/global/theme/base/app_theme_ext.dart
similarity index 100%
rename from lib/config/theme/base/app_theme_ext.dart
rename to lib/global/theme/base/app_theme_ext.dart
diff --git a/lib/config/theme/theme.dart b/lib/global/theme/theme.dart
similarity index 100%
rename from lib/config/theme/theme.dart
rename to lib/global/theme/theme.dart
diff --git a/lib/config/theme/themes/light_theme.dart b/lib/global/theme/themes/light_theme.dart
similarity index 100%
rename from lib/config/theme/themes/light_theme.dart
rename to lib/global/theme/themes/light_theme.dart
diff --git a/lib/main.dart b/lib/main.dart
index 63a01e7..7f00c5e 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,12 +1,18 @@
+import 'dart:async';
+
+import 'package:app/global/event_bus.dart';
 import 'package:app/providers/user_store.dart';
+import 'package:app/router/route_paths.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:app/router/routes.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 
-import 'config/theme/theme.dart';
+import 'global/theme/theme.dart';
+import 'global/theme/themes/light_theme.dart';
 
 void main() {
   runApp(
@@ -19,9 +25,26 @@ void main() {
   );
 }
 
-class MyApp extends StatelessWidget {
+class MyApp extends StatefulWidget {
   const MyApp({super.key});
 
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  @override
+  void initState() {
+    super.initState();
+    // 1. 监听 401
+    EventBus().stream.listen((event) {
+      if (event == GlobalEvent.unauthorized) {
+        final ctx = navigatorKey.currentState?.context;
+        ctx?.go(RoutePaths.login);
+      }
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return ScreenUtilInit(
diff --git a/lib/pages/student/home/s_home_page.dart b/lib/pages/student/home/s_home_page.dart
index 3c3e2b0..864037d 100644
--- a/lib/pages/student/home/s_home_page.dart
+++ b/lib/pages/student/home/s_home_page.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:app/pages/student/home/viewmodel/s_home_vm.dart';
 import 'package:app/widgets/version/version_dialog.dart';
 import 'package:flutter/material.dart';
diff --git a/lib/pages/student/home/today/banner_info.dart b/lib/pages/student/home/today/banner_info.dart
index 210295c..4293643 100644
--- a/lib/pages/student/home/today/banner_info.dart
+++ b/lib/pages/student/home/today/banner_info.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
diff --git a/lib/pages/student/home/today/s_today_card.dart b/lib/pages/student/home/today/s_today_card.dart
index 2e3607c..907f7b0 100644
--- a/lib/pages/student/home/today/s_today_card.dart
+++ b/lib/pages/student/home/today/s_today_card.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:app/pages/student/home/viewmodel/s_home_vm.dart';
 import 'package:app/router/route_paths.dart';
 import 'package:app/utils/permission.dart';
diff --git a/lib/pages/student/room/controls/top_bar.dart b/lib/pages/student/room/controls/top_bar.dart
index 1d62322..e72f06e 100644
--- a/lib/pages/student/room/controls/top_bar.dart
+++ b/lib/pages/student/room/controls/top_bar.dart
@@ -1,6 +1,11 @@
+import 'package:app/pages/student/room/viewmodel/stu_room_vm.dart';
+import 'package:app/providers/user_store.dart';
 import 'package:app/utils/time.dart';
+import 'package:app/widgets/base/button/index.dart';
 import 'package:app/widgets/base/dialog/config_dialog.dart';
+import 'package:app/widgets/room/board/board_manager.dart';
 import 'package:app/widgets/room/core/count_down_vm.dart';
+import 'package:app/widgets/room/other_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
@@ -18,6 +23,8 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
 
   @override
   Widget build(BuildContext context) {
+    final vm = context.watch<StuRoomVM>();
+    final userStore = context.read<UserStore>();
     return AppBar(
       foregroundColor: Colors.white,
       titleTextStyle: const TextStyle(color: Colors.white, fontSize: 18),
@@ -58,16 +65,38 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
               Text(vm.roomInfo!.roomName),
               Text(
                 formatSeconds(vm.studyTime),
-                style: const TextStyle(fontSize: 12, color: Colors.white24),
+                style: const TextStyle(
+                  fontSize: 12,
+                  color: Colors.white24,
+                ),
               ),
             ],
           );
         },
       ),
       actions: [
-        IconButton(
-          onPressed: onOther,
-          icon: Icon(showOther ? RemixIcons.team_fill : RemixIcons.team_line),
+        ActionButton(
+          icon: showOther ? RemixIcons.team_fill : RemixIcons.team_line,
+          text: showOther ? "隐藏学生" : '显示学生',
+          onTap: onOther,
+        ),
+        Visibility(
+          visible: vm.roomInfo.roomStatus == 1,
+          child: ActionButton(
+            color: Theme.of(context).primaryColor,
+            icon: RemixIcons.artboard_line,
+            text: "进入白板",
+            onTap: () {
+              final boardManager = BoardManager();
+              final vm = context.read<StuRoomVM>();
+              boardManager.showBoardDialog(
+                context,
+                uid: userStore.userInfo!.name,
+                roomId: vm.roomInfo.id,
+                isTeacher: true,
+              );
+            },
+          ),
         ),
       ],
     );
diff --git a/lib/pages/student/room/video/teacher_video.dart b/lib/pages/student/room/video/teacher_video.dart
index 00ef54e..d9a32de 100644
--- a/lib/pages/student/room/video/teacher_video.dart
+++ b/lib/pages/student/room/video/teacher_video.dart
@@ -52,13 +52,13 @@ class TeacherVideo extends StatelessWidget {
               ),
             ),
             Positioned(
-              top: 0,
-              left: 0,
+              top: 30,
+              left: 10,
               child: Container(
-                width: 150,
+                width: 200,
                 color: Colors.black,
                 child: AspectRatio(
-                  aspectRatio: 1 / 1.2,
+                  aspectRatio: 16 / 9,
                   child: AgoraVideoView(
                     controller: VideoViewController(
                       rtcEngine: vm.engine!,
@@ -80,4 +80,4 @@ class TeacherVideo extends StatelessWidget {
       ),
     );
   }
-}
\ No newline at end of file
+}
diff --git a/lib/pages/student/room/viewmodel/stu_room_vm.dart b/lib/pages/student/room/viewmodel/stu_room_vm.dart
index de30d16..c5a08da 100644
--- a/lib/pages/student/room/viewmodel/stu_room_vm.dart
+++ b/lib/pages/student/room/viewmodel/stu_room_vm.dart
@@ -1,7 +1,7 @@
 import 'dart:async';
 
 import 'package:agora_rtc_engine/agora_rtc_engine.dart';
-import 'package:app/config/config.dart';
+import 'package:app/global/config.dart';
 import 'package:app/data/models/meeting_room_dto.dart';
 import 'package:app/request/dto/room/room_list_item_dto.dart';
 import 'package:app/request/dto/room/room_info_dto.dart';
@@ -138,8 +138,9 @@ class StuRoomVM extends ChangeNotifier {
 
   ///学生人员变化事件，（如加入、退出、掉线）
   void onStudentChange(List<RoomUserDto> list) {
+    final lineList = list.where((t) => t.online == 1);
     List<RoomUserDto> newList = [];
-    for (var t in list) {
+    for (var t in lineList) {
       //设置老师
       if (t.userType == 2) {
         teacherInfo = t;
diff --git a/lib/pages/teacher/home/t_home_page.dart b/lib/pages/teacher/home/t_home_page.dart
index 82395f1..bf4d892 100644
--- a/lib/pages/teacher/home/t_home_page.dart
+++ b/lib/pages/teacher/home/t_home_page.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:app/widgets/version/version_dialog.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
@@ -13,7 +13,7 @@ class THomePage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    showUpdateDialog(context);
+    // showUpdateDialog(context);
     return ChangeNotifierProvider(
       create: (_) => HomeViewModel(),
       child: const _HomeView(),
diff --git a/lib/pages/teacher/home/widgets/header.dart b/lib/pages/teacher/home/widgets/header.dart
index 1d19764..ac38e50 100644
--- a/lib/pages/teacher/home/widgets/header.dart
+++ b/lib/pages/teacher/home/widgets/header.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:app/providers/user_store.dart';
 import 'package:app/router/route_paths.dart';
 import 'package:flutter/material.dart';
diff --git a/lib/pages/teacher/room/controls/top_bar.dart b/lib/pages/teacher/room/controls/top_bar.dart
index e66e0b8..9e90e2f 100644
--- a/lib/pages/teacher/room/controls/top_bar.dart
+++ b/lib/pages/teacher/room/controls/top_bar.dart
@@ -1,7 +1,9 @@
+import 'package:app/global/theme/theme.dart';
+import 'package:app/providers/user_store.dart';
 import 'package:app/utils/time.dart';
-import 'package:app/widgets/base/button/index.dart';
-import 'package:app/widgets/base/config/config.dart';
 import 'package:app/widgets/base/dialog/config_dialog.dart';
+import 'package:app/widgets/room/board/board_manager.dart';
+import 'package:app/widgets/room/other_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:go_router/go_router.dart';
@@ -17,6 +19,7 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
 
   @override
   Widget build(BuildContext context) {
+    final userStore = context.read<UserStore>();
     final vm = context.watch<TchRoomVM>();
 
     return AppBar(
@@ -49,28 +52,35 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
         ],
       ),
       actions: [
-        _actionButton(
-          context,
+        ActionButton(
           icon: RemixIcons.video_on_ai_line,
-          title: "关闭全部",
-          onPressed: () {
+          text: "关闭全部",
+          onTap: () {
             _closeAll(context, StudentAction.camera);
           },
         ),
-        _actionButton(
-          context,
+        ActionButton(
           icon: RemixIcons.volume_up_line,
-          title: "全部静音",
-          onPressed: () {
+          text: "全部静音",
+          onTap: () {
             _closeAll(context, StudentAction.speaker);
           },
         ),
-        Container(
-          margin: EdgeInsets.only(right: 15),
-          child: Button(
-            text: "白板",
-            textStyle: TextStyle(fontSize: 14),
-            onPressed: (){},
+        Visibility(
+          visible: vm.roomInfo.roomStatus == 1,
+          child: ActionButton(
+            text: "打开白板",
+            color: Theme.of(context).primaryColor,
+            icon: RemixIcons.artboard_line,
+            onTap: () {
+              final boardManager = BoardManager();
+              boardManager.showBoardDialog(
+                context,
+                uid: userStore.userInfo!.name,
+                roomId: vm.roomInfo.id,
+                isTeacher: true,
+              );
+            },
           ),
         ),
         Consumer<TchRoomVM>(
@@ -78,11 +88,11 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
             if (vm.roomInfo.roomStatus != 1) {
               return SizedBox();
             }
-            return Button(
-              type: ThemeType.danger,
-              textStyle: TextStyle(fontSize: 14),
+            return ActionButton(
+              icon: RemixIcons.close_line,
+              color: context.danger,
               text: "结束自习室",
-              onPressed: () {
+              onTap: () {
                 showDialog(
                   context: context,
                   builder: (_) {
@@ -103,12 +113,15 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
             );
           },
         ),
-        SizedBox(width: 10),
       ],
     );
   }
 
-  Widget _infoItem(BuildContext context, {required String title, required IconData icon}) {
+  Widget _infoItem(
+    BuildContext context, {
+    required String title,
+    required IconData icon,
+  }) {
     return Row(
       children: [
         Icon(icon, color: Colors.white54, size: 14),
@@ -118,32 +131,6 @@ class TopBar extends StatelessWidget implements PreferredSizeWidget {
     );
   }
 
-  Widget _actionButton(
-    BuildContext context, {
-    required IconData icon,
-    required String title,
-    required VoidCallback onPressed,
-  }) {
-    return Container(
-      padding: EdgeInsets.symmetric(horizontal: 10, vertical: 5),
-      margin: EdgeInsets.only(right: 15),
-      decoration: BoxDecoration(
-        color: Color(0xff4a4f4f),
-        borderRadius: BorderRadius.circular(8),
-      ),
-      child: InkWell(
-        onTap: onPressed,
-        child: Row(
-          children: [
-            Icon(icon, size: 16),
-            SizedBox(width: 8),
-            Text(title, style: TextStyle(fontSize: 14)),
-          ],
-        ),
-      ),
-    );
-  }
-
   void _closeAll(BuildContext context, StudentAction action) {
     final vm = context.read<TchRoomVM>();
     String content = (action == StudentAction.camera) ? '是否关闭所有学生的摄像头？' : '是否关闭所有学生的扬声器？';
diff --git a/lib/pages/teacher/room/viewmodel/tch_room_vm.dart b/lib/pages/teacher/room/viewmodel/tch_room_vm.dart
index 9a673bf..4958239 100644
--- a/lib/pages/teacher/room/viewmodel/tch_room_vm.dart
+++ b/lib/pages/teacher/room/viewmodel/tch_room_vm.dart
@@ -176,7 +176,13 @@ class TchRoomVM extends ChangeNotifier {
 
   ///学生人员变化事件，（如加入、退出、掉线）
   void onStudentChange(List<RoomUserDto> list) {
-    _students = list.where((t) => t.userType != 2).toList();
+    _students = list.where((t) => t.userType != 2 && t.online == 1).toList();
+    if (activeSId != 0) {
+      final it = _students.where((t) => t.userId == activeSId).firstOrNull;
+      if (it == null) {
+        activeSId = 0;
+      }
+    }
     // 如果当前没有学生，则选择第一个
     if (activeSId == 0 && _students.isNotEmpty) {
       activeSId = _students.first.userId;
diff --git a/lib/pages/teacher/room/widgets/content_view.dart b/lib/pages/teacher/room/widgets/content_view.dart
index b99720f..328c28c 100644
--- a/lib/pages/teacher/room/widgets/content_view.dart
+++ b/lib/pages/teacher/room/widgets/content_view.dart
@@ -1,5 +1,5 @@
 import 'package:agora_rtc_engine/agora_rtc_engine.dart';
-import 'package:app/config/config.dart';
+import 'package:app/global/config.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:wakelock_plus/wakelock_plus.dart';
@@ -109,13 +109,13 @@ class _ContentViewState extends State<ContentView> {
                       engine: _engine,
                     ),
                     Positioned(
-                      top: 0,
-                      left: 0,
+                      top: 10,
+                      right: 10,
                       child: Container(
-                        width: 150,
+                        width: 200,
                         color: Colors.black,
                         child: AspectRatio(
-                          aspectRatio: 1 / 1.2,
+                          aspectRatio: 16 / 9,
                           child: AgoraVideoView(
                             controller: VideoViewController(
                               rtcEngine: _engine!,
@@ -128,21 +128,24 @@ class _ContentViewState extends State<ContentView> {
                   ],
                 ),
               ),
-              SizedBox(
-                width: 300,
-                child: ListView.separated(
-                  itemBuilder: (_, index) {
-                    var item = otherStudents.elementAt(index);
-                    return SizedBox(
-                      height: 250,
-                      child: StudentItem(
-                        user: item,
-                        engine: _engine,
-                      ),
-                    );
-                  },
-                  separatorBuilder: (_, __) => SizedBox(height: 15),
-                  itemCount: otherStudents.length,
+              Visibility(
+                visible: otherStudents.isNotEmpty,
+                child: SizedBox(
+                  width: 300,
+                  child: ListView.separated(
+                    itemBuilder: (_, index) {
+                      var item = otherStudents.elementAt(index);
+                      return SizedBox(
+                        height: 250,
+                        child: StudentItem(
+                          user: item,
+                          engine: _engine,
+                        ),
+                      );
+                    },
+                    separatorBuilder: (_, __) => SizedBox(height: 15),
+                    itemCount: otherStudents.length,
+                  ),
                 ),
               ),
             ],
diff --git a/lib/pages/teacher/room/widgets/student_item.dart b/lib/pages/teacher/room/widgets/student_item.dart
index 48cc88c..d6155da 100644
--- a/lib/pages/teacher/room/widgets/student_item.dart
+++ b/lib/pages/teacher/room/widgets/student_item.dart
@@ -26,9 +26,10 @@ class StudentItem extends StatefulWidget {
 
 class _StudentItemState extends State<StudentItem> {
   ///打开文件列表
-  void _openFileList() {
+  void _openFileList({required String name}) {
     showFileDialog(
       context,
+      name: name,
       isUpload: false,
       files: widget.user.filesList,
     );
@@ -160,7 +161,12 @@ class _StudentItemState extends State<StudentItem> {
                       );
                     },
                   ),
-                  _actionItem(icon: RemixIcons.file_list_3_fill, onTap: _openFileList),
+                  _actionItem(
+                    icon: RemixIcons.file_list_3_fill,
+                    onTap: (){
+                      _openFileList(name: widget.user.userName);
+                    },
+                  ),
                 ],
               ),
             ),
diff --git a/lib/providers/user_store.dart b/lib/providers/user_store.dart
index 912bfa1..c433ba7 100644
--- a/lib/providers/user_store.dart
+++ b/lib/providers/user_store.dart
@@ -7,9 +7,9 @@ class UserStore extends ChangeNotifier {
   UserInfoDto? userInfo;
   String token = "";
 
-  Future<void> init() async{
+  Future<void> init() async {
     token = await getToken();
-   await setUserInfo();
+    await setUserInfo();
     notifyListeners();
   }
 
@@ -41,4 +41,10 @@ class UserStore extends ChangeNotifier {
     token = '';
     notifyListeners();
   }
+
+  ///强制退出（不调用接口、不通知 UI）
+  static Future<void> forceLogout() async {
+    await Storage.remove('token');
+    await Storage.remove('user_info');
+  }
 }
diff --git a/lib/request/api/room_api.dart b/lib/request/api/room_api.dart
index 3a79f25..dd94e25 100644
--- a/lib/request/api/room_api.dart
+++ b/lib/request/api/room_api.dart
@@ -1,12 +1,13 @@
+import 'package:app/request/dto/room/board_token_dto.dart';
 import 'package:app/request/dto/room/rtc_token_dto.dart';
 import 'package:app/request/network/request.dart';
 
 import '../dto/room/room_list_item_dto.dart';
 
 /// 获取房间列表
-Future<List<RoomListItemDto >> getRoomListApi() async {
+Future<List<RoomListItemDto>> getRoomListApi() async {
   var res = await Request().get('/study_room/get_study_room_list');
-  return List<RoomListItemDto >.from(res.map((x) => RoomListItemDto .fromJson(x)));
+  return List<RoomListItemDto>.from(res.map((x) => RoomListItemDto.fromJson(x)));
 }
 
 ///获取自习室的websocket令牌
@@ -24,3 +25,11 @@ Future<RtcTokenDto> getRtcTokenApi(int roomId) async {
   });
   return RtcTokenDto.fromJson(res);
 }
+
+///获取白板的令牌
+Future<BoardTokenDto> getBoardTokenApi(int roomId) async {
+  var res = await Request().get('/study_room/get_whiteboard_token', {
+    "study_room_id": roomId,
+  });
+  return BoardTokenDto.fromJson(res);
+}
diff --git a/lib/request/dto/room/board_token_dto.dart b/lib/request/dto/room/board_token_dto.dart
new file mode 100644
index 0000000..c295daa
--- /dev/null
+++ b/lib/request/dto/room/board_token_dto.dart
@@ -0,0 +1,32 @@
+
+class BoardTokenDto {
+  BoardTokenDto({
+    required this.expiresAt,
+    required this.whiteboardAppid,
+    required this.whiteboardUuid,
+    required this.expiresIn,
+    required this.whiteboardToken,
+  });
+
+  DateTime expiresAt;
+  String whiteboardAppid;
+  String whiteboardUuid;
+  int expiresIn;
+  String whiteboardToken;
+
+  factory BoardTokenDto.fromJson(Map<dynamic, dynamic> json) => BoardTokenDto(
+    expiresAt: DateTime.parse(json["expires_at"]),
+    whiteboardAppid: json["whiteboard_appid"],
+    whiteboardUuid: json["whiteboard_uuid"],
+    expiresIn: json["expires_in"],
+    whiteboardToken: json["whiteboard_token"],
+  );
+
+  Map<dynamic, dynamic> toJson() => {
+    "expires_at": expiresAt.toIso8601String(),
+    "whiteboard_appid": whiteboardAppid,
+    "whiteboard_uuid": whiteboardUuid,
+    "expires_in": expiresIn,
+    "whiteboard_token": whiteboardToken,
+  };
+}
diff --git a/lib/request/network/interceptor.dart b/lib/request/network/interceptor.dart
index 7230020..53c38ed 100644
--- a/lib/request/network/interceptor.dart
+++ b/lib/request/network/interceptor.dart
@@ -1,34 +1,46 @@
+import 'package:app/global/event_bus.dart';
 import 'package:app/providers/user_store.dart';
+import 'package:app/router/route_paths.dart';
+import 'package:app/router/routes.dart';
 import 'package:dio/dio.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
+import 'package:go_router/go_router.dart';
+import 'package:provider/provider.dart';
 
 import '../dto/base_dto.dart';
 
 ///请求拦截器
-void onRequest(
-  RequestOptions options,
-  RequestInterceptorHandler handler,
-) async {
+void onRequest(RequestOptions options,
+    RequestInterceptorHandler handler,) async {
   String token = await UserStore.getToken();
   options.headers['Authorization'] = 'Bearer $token';
   return handler.next(options);
 }
 
 ///响应拦截器
-void onResponse(
-  Response<dynamic> response,
-  ResponseInterceptorHandler handler,
-) {
+void onResponse(Response<dynamic> response,
+    ResponseInterceptorHandler handler,) async {
   var apiResponse = ApiDto.fromJson(response.data);
   if (apiResponse.code == 1) {
     response.data = apiResponse.data;
     handler.next(response);
+  } else if (apiResponse.code == 401) {
+    // final bus = EventBus();
+    // bus.fire(GlobalEvent.unauthorized);
+    // final context = navigatorKey.currentState?.context;
+    // print("dsd");
+    // if (context != null) {
+    //   // UserStore userStore = context.read<UserStore>();
+    //   // userStore.logout();
+    //   context.go(RoutePaths.login);
+    // }
+    handler.next(response);
   } else {
     handler.reject(
       DioException(
         requestOptions: response.requestOptions,
         response: response,
-        error: {'code': 0, 'message': apiResponse.message},
+        error: {'code': apiResponse.code, 'message': apiResponse.message},
       ),
     );
     showError(apiResponse.message);
@@ -36,15 +48,18 @@ void onResponse(
 }
 
 ///错误响应
-void onError(
-  DioException e,
-  ErrorInterceptorHandler handler,
-) {
+void onError(DioException e,
+    ErrorInterceptorHandler handler,) async {
   var title = "";
   if (e.type == DioExceptionType.connectionTimeout) {
     title = "请求超时";
   } else if (e.type == DioExceptionType.badResponse) {
-    if (e.response?.statusCode == 404) {
+    if (e.response?.statusCode == 401) {
+      final bus = EventBus();
+      bus.fire(GlobalEvent.unauthorized);
+      title = "登录信息已失效，请重新登录";
+    }
+    else if (e.response?.statusCode == 404) {
       title = "接口404不存在";
     } else {
       title = "500";
diff --git a/lib/request/network/request.dart b/lib/request/network/request.dart
index fb9f9f5..cd77b69 100644
--- a/lib/request/network/request.dart
+++ b/lib/request/network/request.dart
@@ -1,5 +1,5 @@
 import 'package:dio/dio.dart';
-import 'package:app/config/config.dart';
+import 'package:app/global/config.dart';
 
 import 'interceptor.dart';
 
diff --git a/lib/request/websocket/room_websocket.dart b/lib/request/websocket/room_websocket.dart
index c45f7b5..6e2f4bd 100644
--- a/lib/request/websocket/room_websocket.dart
+++ b/lib/request/websocket/room_websocket.dart
@@ -1,7 +1,7 @@
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
-import 'package:app/config/config.dart';
+import 'package:app/global/config.dart';
 import 'package:app/request/api/room_api.dart';
 import 'package:app/request/websocket/room_protocol.dart';
 import 'package:logger/logger.dart';
diff --git a/lib/router/routes.dart b/lib/router/routes.dart
index cf60c3a..c001cd4 100644
--- a/lib/router/routes.dart
+++ b/lib/router/routes.dart
@@ -3,6 +3,7 @@ import 'package:app/router/modules/student_routes.dart';
 import 'package:app/router/modules/teacher_routes.dart';
 import 'package:app/router/route_paths.dart';
 import 'package:app/router/router_config.dart';
+import 'package:flutter/material.dart' hide RouterConfig;
 import 'package:go_router/go_router.dart';
 
 List<RouterConfig> routeConfigs = [
@@ -21,8 +22,12 @@ List<RouteBase> routes = routeConfigs.map((item) {
   );
 }).toList();
 
+GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
+
+
 //变量命名
 GoRouter goRouter = GoRouter(
+  navigatorKey: navigatorKey,
   initialLocation: RoutePaths.splash,
   routes: routes,
 );
diff --git a/lib/utils/transfer/upload.dart b/lib/utils/transfer/upload.dart
index 8eec37c..4ee453d 100644
--- a/lib/utils/transfer/upload.dart
+++ b/lib/utils/transfer/upload.dart
@@ -1,6 +1,6 @@
 import 'dart:io';
 
-import 'package:app/config/config.dart';
+import 'package:app/global/config.dart';
 import 'package:app/request/api/common_api.dart';
 import 'package:app/request/dto/common/qiu_token_dto.dart';
 import 'package:crypto/crypto.dart';
diff --git a/lib/widgets/base/button/index.dart b/lib/widgets/base/button/index.dart
index c2ad5b1..255e650 100644
--- a/lib/widgets/base/button/index.dart
+++ b/lib/widgets/base/button/index.dart
@@ -1,8 +1,9 @@
-import 'package:app/config/theme/theme.dart';
+import 'package:app/global/theme/theme.dart';
 import 'package:flutter/material.dart';
 
 import '../config/config.dart';
 
+
 class Button extends StatelessWidget {
   final double? width;
   final String text;
@@ -12,14 +13,16 @@ class Button extends StatelessWidget {
   final VoidCallback? onPressed;
   final bool loading;
   final bool disabled;
+  final Widget? icon;
 
   const Button({
     super.key,
+    this.icon,
     this.width,
     this.textStyle = const TextStyle(),
     this.radius = const BorderRadius.all(Radius.circular(80)),
     required this.text,
-     this.onPressed,
+    this.onPressed,
     this.type = ThemeType.primary,
     this.loading = false,
     this.disabled = false,
diff --git a/lib/widgets/base/card/g_card.dart b/lib/widgets/base/card/g_card.dart
index 99e4ba5..8af1242 100644
--- a/lib/widgets/base/card/g_card.dart
+++ b/lib/widgets/base/card/g_card.dart
@@ -1,4 +1,4 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:flutter/material.dart';
 
 class GCard extends StatelessWidget {
diff --git a/lib/widgets/base/tag/index.dart b/lib/widgets/base/tag/index.dart
index a4e4b52..da0b953 100644
--- a/lib/widgets/base/tag/index.dart
+++ b/lib/widgets/base/tag/index.dart
@@ -1,9 +1,10 @@
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:flutter/material.dart';
 
 import '../config/color.dart';
 import '../config/config.dart';
 
+
 class Tag extends StatelessWidget {
   final String text;
   final Color? color;
diff --git a/lib/widgets/room/board/board_dialog.dart b/lib/widgets/room/board/board_dialog.dart
new file mode 100644
index 0000000..7027bfe
--- /dev/null
+++ b/lib/widgets/room/board/board_dialog.dart
@@ -0,0 +1,73 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:remixicon/remixicon.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+
+
+class BoardDialog extends StatefulWidget {
+  final WebViewController controller;
+  const BoardDialog({super.key, required this.controller});
+
+  @override
+  State<BoardDialog> createState() => _BoardDialogState();
+}
+
+class _BoardDialogState extends State<BoardDialog> {
+  bool _loading = true;
+
+  @override
+  void initState() {
+    super.initState();
+
+    // 绑定加载事件
+    widget.controller.setNavigationDelegate(
+      NavigationDelegate(
+        onPageStarted: (_) {
+          setState(() => _loading = true);
+        },
+        onPageFinished: (_) {
+          setState(() => _loading = false);
+        },
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Colors.white,
+      padding: const EdgeInsets.all(16),
+      child: Column(
+        children: [
+          Row(
+            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+            children: [
+              Text('白板', style: Theme.of(context).textTheme.titleSmall),
+              IconButton(
+                onPressed: () => context.pop(),
+                icon: const Icon(RemixIcons.close_circle_fill),
+              ),
+            ],
+          ),
+          Expanded(
+            child: Stack(
+              children: [
+                WebViewWidget(
+                  controller: widget.controller,
+                ),
+                if (_loading)
+                  Container(
+                    color: Colors.white,
+                    child: const Center(
+                      child: CircularProgressIndicator(),
+                    ),
+                  ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
diff --git a/lib/widgets/room/board/board_manager.dart b/lib/widgets/room/board/board_manager.dart
new file mode 100644
index 0000000..57a7d87
--- /dev/null
+++ b/lib/widgets/room/board/board_manager.dart
@@ -0,0 +1,101 @@
+import 'package:app/global/config.dart';
+import 'package:app/request/api/room_api.dart';
+import 'package:app/request/dto/room/board_token_dto.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_easyloading/flutter_easyloading.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+
+import 'board_dialog.dart';
+
+class BoardManager {
+  BoardManager._();
+
+  static final BoardManager _instance = BoardManager._();
+
+  factory BoardManager() => _instance;
+
+  WebViewController? _webViewController;
+  BoardTokenDto? _boardToken;
+
+  ///获取token
+  Future<void> _fetchToken(int roomId) async {
+    final now = DateTime.now();
+
+    if (_boardToken == null) {
+      EasyLoading.show(status: "开启白板中");
+      _boardToken = await getBoardTokenApi(roomId);
+    } else {
+      //离过期差多少小时
+      int remainSeconds = _boardToken!.expiresAt.difference(now).inSeconds;
+      // 剩余不足 2 小时 = 7200 秒
+      if (remainSeconds <= 7200) {
+        EasyLoading.show(status: "开启白板中");
+        _boardToken = await getBoardTokenApi(roomId);
+      }
+    }
+    EasyLoading.dismiss();
+  }
+
+  ///生成完整 URL
+  /// -[uid] 用户
+  /// -[roomId] 房间id
+  /// -[isTeacher] 是否是老师
+  Future<String> buildUrl({
+    required String uid,
+    required int roomId,
+    required bool isTeacher,
+  }) async {
+    await _fetchToken(roomId);
+
+    Map<String, dynamic> params = {
+      "appid": _boardToken!.whiteboardAppid,
+      "uid": uid,
+      "uuid": _boardToken!.whiteboardUuid,
+      "room_token": _boardToken!.whiteboardToken,
+      "write": isTeacher ? 1 : 0,
+    };
+    String paramStr = params.entries.map((e) => "${e.key}=${e.value}").join("&");
+
+    return "${Config.webUrl}/board?$paramStr";
+  }
+
+  /// 获取全局唯一 WebViewController
+  Future<WebViewController> getController(String url) async {
+    if (_webViewController != null) return _webViewController!;
+
+    _webViewController = WebViewController()
+      ..setJavaScriptMode(JavaScriptMode.unrestricted)
+      ..setNavigationDelegate(
+        // ⭐ 加上加载监听（BoardDialog 再 listen 一次也没关系）
+        NavigationDelegate(
+          onPageStarted: (_) {},
+          onPageFinished: (_) {},
+        ),
+      )
+      ..loadRequest(Uri.parse(url));
+
+    return _webViewController!;
+  }
+
+  ///打开白板
+  /// -[uid] 用户名+id
+  /// -[roomId] 房间id
+  /// -[isTeacher] 是否是老师
+  Future<void> showBoardDialog(
+    BuildContext context, {
+    required String uid,
+    required int roomId,
+    required bool isTeacher,
+  }) async {
+    String url = await buildUrl(
+      uid: uid,
+      roomId: roomId,
+      isTeacher: isTeacher,
+    );
+    final controller = await getController(url);
+    showDialog(
+      context: context,
+      builder: (_) => BoardDialog(controller: controller),
+    );
+  }
+}
diff --git a/lib/widgets/room/file_drawer.dart b/lib/widgets/room/file_drawer.dart
index 5113ead..e812372 100644
--- a/lib/widgets/room/file_drawer.dart
+++ b/lib/widgets/room/file_drawer.dart
@@ -1,6 +1,6 @@
 import 'dart:io';
 
-import 'package:app/config/theme/base/app_theme_ext.dart';
+import 'package:app/global/theme/base/app_theme_ext.dart';
 import 'package:app/utils/transfer/upload.dart';
 import 'package:app/widgets/base/actionSheet/action_sheet.dart';
 import 'package:app/widgets/base/actionSheet/type.dart';
@@ -150,7 +150,7 @@ class _FileDrawerState extends State<FileDrawer> {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Text(
-              "${widget.name ?? ""}上传文件列表",
+              "${widget.name ?? ""}文件列表",
               style: Theme.of(context).textTheme.titleSmall,
             ),
             Expanded(
diff --git a/lib/widgets/room/other_widget.dart b/lib/widgets/room/other_widget.dart
index fa3e854..45a81e4 100644
--- a/lib/widgets/room/other_widget.dart
+++ b/lib/widgets/room/other_widget.dart
@@ -1,7 +1,9 @@
 import 'package:flutter/material.dart';
 
+/// 举手按钮
 class HandRaiseButton extends StatelessWidget {
   final void Function() onTap;
+
   const HandRaiseButton({super.key, required this.onTap});
 
   @override
@@ -24,3 +26,41 @@ class HandRaiseButton extends StatelessWidget {
     );
   }
 }
+
+///topBar的操作按钮
+class ActionButton extends StatelessWidget {
+  final IconData icon;
+  final String text;
+  final Color? color;
+  final void Function()? onTap;
+
+  const ActionButton({
+    super.key,
+    required this.icon,
+    required this.text,
+    this.color,
+    this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: EdgeInsets.symmetric(horizontal: 10, vertical: 5),
+      margin: EdgeInsets.only(right: 15),
+      decoration: BoxDecoration(
+        color: color ?? Color(0xff4a4f4f),
+        borderRadius: BorderRadius.circular(8),
+      ),
+      child: InkWell(
+        onTap: onTap,
+        child: Row(
+          children: [
+            Icon(icon, size: 16),
+            SizedBox(width: 8),
+            Text(text, style: TextStyle(fontSize: 14)),
+          ],
+        ),
+      ),
+    );
+  }
+}
diff --git a/pubspec.lock b/pubspec.lock
index 64ea3b6..4a500b4 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -898,6 +898,38 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.1"
+  webview_flutter:
+    dependency: "direct main"
+    description:
+      name: webview_flutter
+      sha256: c3e4fe614b1c814950ad07186007eff2f2e5dd2935eba7b9a9a1af8e5885f1ba
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "4.13.0"
+  webview_flutter_android:
+    dependency: transitive
+    description:
+      name: webview_flutter_android
+      sha256: "9a25f6b4313978ba1c2cda03a242eea17848174912cfb4d2d8ee84a556f248e3"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "4.10.1"
+  webview_flutter_platform_interface:
+    dependency: transitive
+    description:
+      name: webview_flutter_platform_interface
+      sha256: "63d26ee3aca7256a83ccb576a50272edd7cfc80573a4305caa98985feb493ee0"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.14.0"
+  webview_flutter_wkwebview:
+    dependency: transitive
+    description:
+      name: webview_flutter_wkwebview
+      sha256: fb46db8216131a3e55bcf44040ca808423539bc6732e7ed34fb6d8044e3d512f
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.23.0"
   win32:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 1987257..825cf5f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -33,6 +33,7 @@ dependencies:
   app_installer: ^1.3.1
   wakelock_plus: ^1.3.3
   image_picker: ^1.2.0
+  webview_flutter: ^4.13.0
 
 dev_dependencies:
   flutter_test: