feat: add urgent notification feature and improve UI components

- Updated index.vue to include an urgent notification button and dialog.
- Added UrgentTestDialog.vue component for sending notifications with urgency options.
- Enhanced UI elements for better user experience, including improved spacing and layout.
- Implemented notification history display with receipt tracking for sent messages.
- Added methods for handling notification sending and receipt updates via socket events.

src/components/UrgentNotification.vue

@@ -13,7 +13,7 @@
     >
       <v-card-text>
         <div class="urgent-title mb-6">
-          {{ notification?.content?.message || "无内容" }}
+          {{ currentNotification?.content?.message || "无内容" }}
         </div>
 
         <!-- 发送者信息（使用 Vuetify Card） -->
@@ -45,11 +45,47 @@
               size="small"
             >
               <v-icon left size="16"> mdi-clock </v-icon>
-              {{ formatTime(notification?.timestamp) }}
+              {{ formatTime(currentNotification?.timestamp) }}
             </v-chip>
           </v-card-text>
         </v-card>
 
+        <!-- 多通知导航 -->
+        <div v-if="hasMultipleNotifications" class="navigation-controls mt-6">
+          <v-card variant="flat" color="rgba(255,255,255,0.1)">
+            <v-card-text class="text-center">
+              <div class="notification-counter mb-3">
+                <v-chip color="white" variant="flat" size="small">
+                  {{ notificationCountText }}
+                </v-chip>
+              </div>
+              <div class="navigation-buttons">
+                <v-btn
+                  :disabled="currentIndex === 0"
+                  color="white"
+                  variant="outlined"
+                  size="small"
+                  @click="previousNotification"
+                >
+                  <v-icon> mdi-chevron-left </v-icon>
+                  上一个
+                </v-btn>
+                <v-btn
+                  :disabled="currentIndex === notificationQueue.length - 1"
+                  color="white"
+                  variant="outlined"
+                  size="small"
+                  class="ml-2"
+                  @click="nextNotification"
+                >
+                  下一个
+                  <v-icon> mdi-chevron-right </v-icon>
+                </v-btn>
+              </div>
+            </v-card-text>
+          </v-card>
+        </div>
+
         <!-- 操作按钮 -->
         <div class="mt-8">
           <v-btn color="white" size="large" variant="flat" @click="close">
@@ -76,14 +112,32 @@ export default {
   data() {
     return {
       visible: false,
-      notification: null,
+      notificationQueue: [], // 通知队列
+      currentIndex: 0, // 当前显示的通知索引
       autoCloseTimer: null,
       urgentSoundTimer: null,
     };
   },
   computed: {
+    // 当前显示的通知
+    currentNotification() {
+      return this.notificationQueue[this.currentIndex] || null;
+    },
+    // 队列中是否有通知
+    hasNotifications() {
+      return this.notificationQueue.length > 0;
+    },
+    // 是否有多个通知
+    hasMultipleNotifications() {
+      return this.notificationQueue.length > 1;
+    },
+    // 通知计数文本
+    notificationCountText() {
+      if (!this.hasMultipleNotifications) return "";
+      return `${this.currentIndex + 1} / ${this.notificationQueue.length}`;
+    },
     isUrgent() {
-      return this.notification?.content?.isUrgent || false;
+      return this.currentNotification?.content?.isUrgent || false;
     },
     urgencyColor() {
       return this.isUrgent ? "red darken-2" : "blue darken-2";
@@ -101,18 +155,20 @@ export default {
     },
     senderName() {
       const senderInfo =
-        this.notification?.senderInfo || this.notification?.content?.senderInfo;
+        this.currentNotification?.senderInfo ||
+        this.currentNotification?.content?.senderInfo;
       if (!senderInfo) return "未知发送者";
 
       return senderInfo.deviceName || senderInfo.deviceType || "未知设备";
     },
     deviceType() {
       const senderInfo =
-        this.notification?.senderInfo || this.notification?.content?.senderInfo;
+        this.currentNotification?.senderInfo ||
+        this.currentNotification?.content?.senderInfo;
       return senderInfo?.deviceType || "未知类型";
     },
     targetDevices() {
-      return this.notification?.content?.targetDevices || [];
+      return this.currentNotification?.content?.targetDevices || [];
     },
   },
   beforeUnmount() {
@@ -125,24 +181,40 @@ export default {
   },
   methods: {
     show(notificationData) {
-      this.notification = notificationData;
-      this.visible = true;
+      // 检查是否已存在相同的通知（避免重复）
+      const existingIndex = this.notificationQueue.findIndex(
+        (n) =>
+          n.content?.notificationId === notificationData.content?.notificationId
+      );
 
-      // 发送显示回执
-      this.sendDisplayedReceipt();
-
-      // 清除之前的自动关闭定时器
-      if (this.autoCloseTimer) {
-        clearTimeout(this.autoCloseTimer);
+      if (existingIndex !== -1) {
+        console.log("通知已存在，跳过添加");
+        return;
       }
 
-      // 播放统一的提示音
+      // 添加到队列
+      this.notificationQueue.push(notificationData);
+
+      // 如果当前没有显示通知，显示第一个
+      if (!this.visible) {
+        this.currentIndex = this.notificationQueue.length - 1; // 显示最新的通知
+        this.visible = true;
+        this.sendDisplayedReceipt();
         this.playNotificationSound();
 
         // 如果是加急通知，启动定时音效
         if (this.isUrgent) {
           this.startUrgentSound();
         }
+      } else {
+        // 如果已经有通知在显示，新通知是紧急的话优先显示
+        if (notificationData.content?.isUrgent && !this.isUrgent) {
+          this.currentIndex = this.notificationQueue.length - 1;
+          this.sendDisplayedReceipt();
+          this.playNotificationSound();
+          this.startUrgentSound();
+        }
+      }
     },
     close() {
       // 只在用户主动关闭时发送已读回执
@@ -153,24 +225,58 @@ export default {
         console.warn("发送已读回执失败:", error);
       }
 
+      // 显示已读消息提示，便于设备端重新查看
+      if (this.currentNotification?.content?.message) {
+        const notificationType = this.isUrgent ? "紧急通知" : "通知";
+        if (this.isUrgent) {
+          this.$message?.error(
+            notificationType,
+            `${this.currentNotification.content.message}`
+          );
+        } else {
+          this.$message?.info(
+            notificationType,
+            `${this.currentNotification.content.message}`
+          );
+        }
+      }
+
+      // 从队列中移除当前通知
+      if (this.notificationQueue.length > 0) {
+        this.notificationQueue.splice(this.currentIndex, 1);
+
+        // 调整当前索引
+        if (this.currentIndex >= this.notificationQueue.length) {
+          this.currentIndex = Math.max(0, this.notificationQueue.length - 1);
+        }
+
+        // 如果还有通知，显示下一个；否则关闭
+        if (this.notificationQueue.length > 0) {
+          this.sendDisplayedReceipt();
+          // 如果新的当前通知是紧急的，启动音效
+          if (this.isUrgent) {
+            this.startUrgentSound();
+          } else {
+            this.stopUrgentSound();
+          }
+        } else {
           this.closeWithoutRead();
+        }
+      }
     },
     // 关闭通知但不发送已读回执（用于程序异常或强制关闭）
     closeWithoutRead() {
       // 立即关闭弹框
       this.visible = false;
-      this.notification = null;
+      this.notificationQueue = [];
+      this.currentIndex = 0;
 
       if (this.autoCloseTimer) {
         clearTimeout(this.autoCloseTimer);
         this.autoCloseTimer = null;
       }
 
-      // 停止加急音效定时器
-      if (this.urgentSoundTimer) {
-        clearInterval(this.urgentSoundTimer);
-        this.urgentSoundTimer = null;
-      }
+      this.stopUrgentSound();
     },
     formatTime(timestamp) {
       if (!timestamp) return "";
@@ -230,12 +336,12 @@ export default {
     // 发送显示回执
     sendDisplayedReceipt() {
       try {
-        if (this.$refs.eventSender && this.notification?.eventId) {
+        if (this.$refs.eventSender && this.currentNotification?.eventId) {
           this.$refs.eventSender.sendDisplayedReceipt(
             {},
-            this.notification.content.notificationId
+            this.currentNotification.content.notificationId
           );
-          console.log("已发送显示回执:", this.notification.eventId);
+          console.log("已发送显示回执:", this.currentNotification.eventId);
         }
       } catch (error) {
         console.warn("发送显示回执失败:", error);
@@ -244,34 +350,64 @@ export default {
     // 发送已读回执
     sendReadReceipt() {
       try {
-        if (this.$refs.eventSender && this.notification?.eventId) {
+        if (this.$refs.eventSender && this.currentNotification?.eventId) {
           this.$refs.eventSender.sendReadReceipt(
             {},
-            this.notification.content.notificationId
+            this.currentNotification.content.notificationId
           );
-          console.log("已发送已读回执:", this.notification.eventId);
+          console.log("已发送已读回执:", this.currentNotification.eventId);
         }
       } catch (error) {
         console.warn("发送已读回执失败:", error);
       }
     },
+    // 导航到上一个通知
+    previousNotification() {
+      if (this.currentIndex > 0) {
+        this.currentIndex--;
+        this.sendDisplayedReceipt();
+
+        // 根据新通知的紧急程度调整音效
+        if (this.isUrgent) {
+          this.startUrgentSound();
+        } else {
+          this.stopUrgentSound();
+        }
+      }
+    },
+    // 导航到下一个通知
+    nextNotification() {
+      if (this.currentIndex < this.notificationQueue.length - 1) {
+        this.currentIndex++;
+        this.sendDisplayedReceipt();
+
+        // 根据新通知的紧急程度调整音效
+        if (this.isUrgent) {
+          this.startUrgentSound();
+        } else {
+          this.stopUrgentSound();
+        }
+      }
+    },
     // 启动加急通知的定时音效
     startUrgentSound() {
-      // 清除之前的定时器
-      if (this.urgentSoundTimer) {
-        clearInterval(this.urgentSoundTimer);
-      }
+      this.stopUrgentSound(); // 先清除之前的定时器
 
       // 每秒播放一次提示音
       this.urgentSoundTimer = setInterval(() => {
         if (this.visible && this.isUrgent) {
           this.playNotificationSound();
         } else {
-          // 如果弹框已关闭或不再是加急状态，停止音效
+          this.stopUrgentSound();
+        }
+      }, 1000);
+    },
+    // 停止加急音效
+    stopUrgentSound() {
+      if (this.urgentSoundTimer) {
         clearInterval(this.urgentSoundTimer);
         this.urgentSoundTimer = null;
       }
-      }, 1000);
     },
   },
 };
@@ -341,6 +477,21 @@ export default {
   gap: 16px;
 }
 
+.navigation-controls {
+  backdrop-filter: blur(10px);
+}
+
+.notification-counter {
+  color: white;
+  font-weight: 600;
+}
+
+.navigation-buttons {
+  display: flex;
+  justify-content: center;
+  gap: 8px;
+}
+
 /* 动画效果 */
 @keyframes urgentPulse {
   0%,

src/components/UrgentTestDialog.vue

@@ -0,0 +1,430 @@
+<template>
+  <v-dialog
+    v-model="dialog"
+    fullscreen
+    transition="dialog-bottom-transition"
+    scrollable
+  >
+    <v-card>
+      <v-toolbar
+        dark
+        flat
+      >
+        <v-toolbar-title>
+          <v-icon class="mr-2">
+            mdi-chat
+          </v-icon>
+          发送通知
+        </v-toolbar-title>
+        <v-spacer />
+        <v-btn
+          icon="mdi-close"
+          @click="close"
+        />
+      </v-toolbar>
+
+      <v-card-text class="pa-0">
+        <v-container>
+          <v-row>
+            <v-col cols="12">
+              <v-card>
+
+
+                <v-card-text>
+                  <v-form>
+                    <v-row>
+                      <v-col
+                        cols="12"
+                        md="6"
+                      >
+                        <v-switch
+                          v-model="notificationForm.isUrgent"
+                          label="强调通知"
+                          color="red"
+                          inset
+                        >
+
+                        </v-switch>
+                      </v-col>
+                      <v-col cols="12">
+                        <v-textarea
+                          v-model="notificationForm.message"
+                          label="通知内容"
+                          outlined
+                          rows="3"
+                          placeholder="请输入强调通知的内容..."
+                        />
+                      </v-col>
+                    </v-row>
+                  </v-form>
+                </v-card-text>
+
+                <v-card-actions class="px-6 pb-6">
+                  <v-btn
+                    :color="notificationForm.isUrgent ? 'red' : 'blue'"
+                    :disabled="!notificationForm.message.trim()"
+                    :loading="sending"
+                    size="large"
+                    variant="elevated"
+                    @click="sendNotification"
+                  >
+                    <v-icon left>
+                      {{ notificationForm.isUrgent ? 'mdi-alert-circle' : 'mdi-information' }}
+                    </v-icon>
+                    {{ notificationForm.isUrgent ? '发送强调通知' : '发送通知' }}
+                  </v-btn>
+
+                  <v-spacer />
+
+
+                </v-card-actions>
+              </v-card>
+            </v-col>
+          </v-row>
+
+          <!-- 消息发送历史 -->
+          <v-row class="mt-4">
+            <v-col cols="12">
+              <v-card>
+                <v-card-title>
+                  <v-icon class="mr-2">
+                    mdi-history
+                  </v-icon>
+                  消息记录
+                  <v-spacer />
+                </v-card-title>
+                <v-card-text>
+                  <div
+                    v-if="sentMessages.length === 0"
+                    class="text-center text-grey py-8"
+                  >
+                    <v-icon
+                      size="64"
+                      color="grey-lighten-2"
+                    >
+                      mdi-message-outline
+                    </v-icon>
+                    <div class="mt-2">
+                      暂无发送记录
+                    </div>
+                  </div>
+                  <v-row v-else>
+                    <v-col
+                      v-for="message in sentMessages.slice().reverse()"
+                      :key="message.id"
+                      cols="12"
+                      md="6"
+                      lg="4"
+                    >
+                      <!-- 主消息卡片 -->
+                      <v-card
+                        :color="getMainCardColor(message.receipts)"
+                        class="mb-2"
+                      >
+                        <v-card-text>
+                          <div class="d-flex align-center mb-2">
+                            <span class="font-weight-medium">
+                              {{ message.isUrgent ? '强调通知' : '通知' }}
+                            </span>
+                            <v-spacer />
+                            <span class="text-caption font-weight-medium">
+                              {{ getReceiptStatus(message.receipts) }}
+                            </span>
+                          </div>
+
+                          <div
+                            class="text-body-2 mb-3"
+                            style="max-height: 60px; overflow: hidden;"
+                          >
+                            {{ message.message }}
+                          </div>
+
+                          <div class="text-caption">
+                            <div>发送时间：{{ formatTime(message.timestamp) }}</div>
+                            <div>事件ID：{{ message.id }}</div>
+                            <div>通知ID：{{ message.notificationId }}</div>
+                          </div>
+                        </v-card-text>
+                      </v-card>
+
+                      <!-- 设备回执小卡片 -->
+                      <div v-if="hasAnyReceipts(message.receipts)">
+                        <!-- 已读设备 -->
+                        <v-card
+                          v-for="device in message.receipts.read"
+                          :key="`${device.senderId}-read`"
+                          color="success"
+                          class="mb-1"
+                          size="small"
+                        >
+                          <v-card-text class="pa-2">
+                            <div class="align-center">
+
+                              <span class="text-body-2 font-weight-medium">{{ device.deviceName }}  </span>
+      <br/>
+
+                              {{ device.deviceType }}
+
+                            </div>
+                            <div class="text-caption mt-1">
+                              已读于 {{ formatDeviceTime(device.timestamp) }}
+                            </div>
+
+                          </v-card-text>
+                        </v-card>
+
+                        <!-- 已显示设备（排除已读的设备） -->
+                        <v-card
+                          v-for="device in getDisplayedOnlyDevices(message.receipts)"
+                          :key="`${device.senderId}-displayed`"
+                          color="info-lighten-4"
+                          variant="outlined"
+                          class="mb-1"
+                          size="small"
+                        >
+                          <v-card-text class="pa-2">
+                            <div class="align-center">
+
+                              <span class="text-body-2 font-weight-medium">{{ device.deviceName }}</span>
+                              <v-spacer />
+                              <span class="text-caption text-grey">
+                                {{ device.deviceType=="classroom"?"教室设备上的应用":device.deviceType }}
+                              </span>
+                            </div>
+                            <div class="text-caption text-grey mt-1">
+                              已显示于 {{ formatDeviceTime(device.timestamp) }}
+                            </div>
+                          </v-card-text>
+                        </v-card>
+
+                      </div>
+                      <div v-else> <v-card
+
+                          color="info-lighten-4"
+                          variant="outlined"
+                          class="mb-1"
+                          size="small"
+                          title="无设备在线"
+                        >
+                          <v-card-text>
+如果数秒后任然显示这个提示，则可能没有任何设备在线接收通知。
+                          </v-card-text>
+                        </v-card></div>
+                    </v-col>
+                  </v-row>
+                </v-card-text>
+              </v-card>
+            </v-col>
+          </v-row>
+        </v-container>
+      </v-card-text>
+    </v-card>
+
+    <ChatWidget />
+    <EventSender ref="eventSender" />
+  </v-dialog>
+</template>
+
+<script>
+import ChatWidget from '@/components/ChatWidget.vue'
+import EventSender from '@/components/EventSender.vue'
+import { on as socketOn } from '@/utils/socketClient'
+
+export default {
+  name: 'UrgentTestDialog',
+  components: {
+    ChatWidget,
+    EventSender
+  },
+  props: {
+    modelValue: {
+      type: Boolean,
+      default: false
+    }
+  },
+  emits: ['update:modelValue'],
+  data() {
+    return {
+      sending: false,
+      notificationForm: {
+        isUrgent: false,
+        message: ''
+      },
+      sentMessages: [],
+      receiptCleanup: []
+    }
+  },
+  computed: {
+    dialog: {
+      get() {
+        return this.modelValue
+      },
+      set(value) {
+        this.$emit('update:modelValue', value)
+      }
+    }
+  },
+  mounted() {
+    this.setupEventListeners()
+  },
+  beforeUnmount() {
+    this.cleanup()
+  },
+  methods: {
+    generateNotificationId() {
+      // 生成32位随机字符串
+      const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
+      let result = ''
+      for (let i = 0; i < 32; i++) {
+        result += chars.charAt(Math.floor(Math.random() * chars.length))
+      }
+      return result
+    },
+
+    async sendNotification() {
+      if (!this.notificationForm.message.trim()) return
+
+      this.sending = true
+      try {
+        // 生成32位随机通知ID
+        const notificationId = this.generateNotificationId()
+
+        const result = await this.$refs.eventSender.sendNotification(
+          this.notificationForm.message,
+          this.notificationForm.isUrgent,
+          [],
+          { deviceName: '测试设备', deviceType: 'system', isReadOnly: false },
+          notificationId
+        )
+
+        const eventId = result?.eventId || `msg-${Date.now()}`
+
+        this.sentMessages.push({
+          id: eventId,
+          notificationId: notificationId,
+          message: this.notificationForm.message,
+          isUrgent: this.notificationForm.isUrgent,
+          timestamp: new Date().toISOString(),
+          receipts: {
+            displayed: [],
+            read: []
+          }
+        })
+
+        console.log('通知已发送，事件ID:', eventId, '通知ID:', notificationId)
+        this.resetForm()
+      } catch (error) {
+        console.error('发送通知失败:', error)
+      } finally {
+        this.sending = false
+      }
+    },
+
+
+    close() {
+      this.dialog = false
+    },
+
+    setupEventListeners() {
+      // 监听显示回执
+      const cleanup1 = socketOn('notification-displayed', (data) => {
+        console.log('收到显示回执:', data)
+        this.updateReceipt(data, 'displayed')
+      })
+
+      // 监听已读回执
+      const cleanup2 = socketOn('notification-read', (data) => {
+        console.log('收到已读回执:', data)
+        this.updateReceipt(data, 'read')
+      })
+
+      this.receiptCleanup.push(cleanup1, cleanup2)
+    },
+
+    updateReceipt(data, type) {
+      const originalEventId = data.originalEventId
+      const notificationId = data.notificationId || data.content?.notificationId
+
+      if (!originalEventId && !notificationId) return
+
+      const message = this.sentMessages.find(msg =>
+        msg.id === originalEventId ||
+        msg.notificationId === notificationId
+      )
+      if (message) {
+        // 使用 senderInfo 中的设备信息，并包含 senderId
+        const deviceInfo = {
+          senderId: data.senderId || 'unknown-sender',
+          deviceName: data.senderInfo?.deviceName || data.deviceInfo?.deviceName || '未知设备',
+          deviceType: data.senderInfo?.deviceType || data.deviceInfo?.deviceType || 'unknown',
+          timestamp: new Date().toISOString()
+        }
+
+        // 避免重复添加相同设备（按 senderId 判断）
+        const exists = message.receipts[type].find(item =>
+          item.senderId === deviceInfo.senderId
+        )
+
+        if (!exists) {
+          message.receipts[type].push(deviceInfo)
+          console.log(`更新${type}回执:`, message.id, deviceInfo)
+        }
+      }
+    },
+
+    cleanup() {
+      this.receiptCleanup.forEach(cleanup => cleanup())
+      this.receiptCleanup = []
+    },
+
+    formatTime(timestamp) {
+      return new Date(timestamp).toLocaleString('zh-CN')
+    },
+
+    getReceiptStatus(receipts) {
+      if (receipts.read.length > 0) return '已读'
+      if (receipts.displayed.length > 0) return '已显示'
+      return '已发送'
+    },
+
+    getReceiptColor(receipts) {
+      if (receipts.read.length > 0) return 'success'
+      if (receipts.displayed.length > 0) return 'info'
+      return 'grey'
+    },
+
+    formatDeviceTime(timestamp) {
+      return new Date(timestamp).toLocaleTimeString('zh-CN')
+    },
+
+    getMainCardColor(receipts) {
+      // 优先显示已读状态（绿色），其次是已显示状态（蓝色）
+      if (receipts.read.length > 0) return 'success'
+      if (receipts.displayed.length > 0) return 'info'
+      return 'grey'
+    },
+
+    hasAnyReceipts(receipts) {
+      return receipts.read.length > 0 || receipts.displayed.length > 0
+    },
+
+    getDisplayedOnlyDevices(receipts) {
+      // 返回只显示未读的设备（按 senderId 排除已读的设备）
+      const readSenderIds = receipts.read.map(device => device.senderId)
+      return receipts.displayed.filter(device =>
+        !readSenderIds.includes(device.senderId)
+      )
+    }
+  }
+}
+</script>
+
+<style scoped>
+.gap-1 {
+  gap: 4px;
+}
+
+.message-history-card .v-chip {
+  margin: 1px;
+}
+</style>

src/pages/index.vue

@@ -31,6 +31,13 @@
         {{ tokenDisplayInfo.text }}
       </v-chip>
 
+      <v-btn
+        v-if="shouldShowUrgentTestButton"
+        prepend-icon="mdi-chat"
+        @click="urgentTestDialog = true"
+        variant="tonal"
+        >发送通知</v-btn
+      >
       <v-btn icon="mdi-chat" variant="text" @click="isChatOpen = true" />
       <v-btn
         :badge="unreadCount || undefined"
@@ -221,7 +228,13 @@
     <!-- 出勤统计区域 -->
     <v-col
       v-if="state.studentList && state.studentList.length"
-      v-ripple="{ class: `text-${['primary','secondary','info','success','warning','error'][Math.floor(Math.random()*6)]}` }"
+      v-ripple="{
+        class: `text-${
+          ['primary', 'secondary', 'info', 'success', 'warning', 'error'][
+            Math.floor(Math.random() * 6)
+          ]
+        }`,
+      }"
       class="attendance-area no-select"
       cols="1"
       @click="setAttendanceArea()"
@@ -450,8 +463,11 @@
                       class="mr-2"
                       size="24"
                     >
-                      <v-icon size="small">{{
-                        getStudentStatusIcon(state.studentList.indexOf(student))
+                      <v-icon size="small"
+                        >{{
+                          getStudentStatusIcon(
+                            state.studentList.indexOf(student)
+                          )
                         }}
                       </v-icon>
                     </v-avatar>
@@ -552,8 +568,7 @@
               </v-card-text>
             </v-card>
           </v-col>
-        </v-row
-        >
+        </v-row>
       </v-card-text>
 
       <v-divider />
@@ -592,6 +607,9 @@
   <!-- 设备聊天室（右下角浮窗） -->
   <ChatWidget v-model="isChatOpen" :show-button="false" />
 
+  <!-- 紧急通知测试对话框 -->
+  <UrgentTestDialog v-model="urgentTestDialog" />
+
   <!-- 添加确认对话框 -->
   <v-dialog v-model="confirmDialog.show" max-width="400">
     <v-card>
@@ -632,9 +650,8 @@
             </template>
             <v-list-item-title class="d-flex align-center">
               <span class="text-subtitle-1">{{ change.name }}</span>
-              <v-tooltip activator="parent" location="top">{{
-                change.description || change.key
-                }}
+              <v-tooltip activator="parent" location="top"
+                >{{ change.description || change.key }}
               </v-tooltip>
             </v-list-item-title>
             <v-list-item-subtitle>
@@ -661,8 +678,7 @@
         </v-btn>
       </v-card-actions>
     </v-card>
-  </v-dialog
-  >
+  </v-dialog>
   <br /><br /><br />
 </template>
 
@@ -675,6 +691,7 @@ import ChatWidget from "@/components/ChatWidget.vue";
 import HomeworkEditDialog from "@/components/HomeworkEditDialog.vue";
 import InitServiceChooser from "@/components/InitServiceChooser.vue";
 import StudentNameManager from "@/components/StudentNameManager.vue";
+import UrgentTestDialog from "@/components/UrgentTestDialog.vue";
 import dataProvider from "@/utils/dataProvider";
 import {
   getSetting,
@@ -698,6 +715,7 @@ import {
   onConnect as onSocketConnect,
 } from "@/utils/socketClient";
 import { createDeviceEventHandler } from "@/utils/deviceEvents";
+import axios from "@/axios/axios";
 
 export default {
   name: "Classworks 作业板",
@@ -710,6 +728,7 @@ export default {
     InitServiceChooser,
     ChatWidget,
     StudentNameManager,
+    UrgentTestDialog,
   },
   data() {
     const defaultSubjects = [
@@ -800,11 +819,11 @@ export default {
       tokenDisplayInfo: {
         show: false,
         readonly: false, // 是否是只读 token
-        text: '',
-        color: 'primary',
-        variant: 'tonal',
-        icon: 'mdi-account',
-        disabled: false
+        text: "",
+        color: "primary",
+        variant: "tonal",
+        icon: "mdi-account",
+        disabled: false,
       },
       // 实时刷新信息
       realtimeInfo: {
@@ -820,8 +839,12 @@ export default {
         namespace: null,
         authCode: null,
         autoOpen: false,
-        autoExecute: false
+        autoExecute: false,
       },
+      // 紧急通知测试对话框
+      urgentTestDialog: false,
+      // 令牌信息
+      tokenInfo: null,
     };
   },
 
@@ -970,6 +993,26 @@ export default {
       void this.settingsTick;
       return onHome && isKv && (!token || token === "");
     },
+    // 是否显示紧急通知测试按钮（仅教师和课堂令牌）
+    shouldShowUrgentTestButton() {
+      // 检查是否使用 KV 服务器
+      const provider = getSetting("server.provider");
+      const isKv = provider === "kv-server" || provider === "classworkscloud";
+      if (!isKv) return false;
+
+      // 检查是否有令牌
+      const kvToken = getSetting("server.kvToken");
+      if (!kvToken) return false;
+
+      // 检查令牌信息是否已加载
+      if (!this.tokenInfo) return false;
+
+      // 只有 teacher 或 classroom 类型的令牌才显示
+      return (
+        this.tokenInfo.deviceType === "teacher" ||
+        this.tokenInfo.deviceType === "classroom"
+      );
+    },
     filteredStudents() {
       let students = [...this.state.studentList];
 
@@ -1081,15 +1124,22 @@ export default {
         if (studentNameManager) {
           this.studentNameInfo.name = studentNameManager.currentStudentName;
           this.studentNameInfo.isStudent = studentNameManager.isStudentToken;
-          this.studentNameInfo.openDialog = () => studentNameManager.openDialog();
+          this.studentNameInfo.openDialog = () =>
+            studentNameManager.openDialog();
 
           // 监听学生姓名变化
-          this.$watch(() => studentNameManager.currentStudentName, (newName) => {
+          this.$watch(
+            () => studentNameManager.currentStudentName,
+            (newName) => {
               this.studentNameInfo.name = newName;
-          });
-          this.$watch(() => studentNameManager.isStudentToken, (isStudent) => {
+            }
+          );
+          this.$watch(
+            () => studentNameManager.isStudentToken,
+            (isStudent) => {
               this.studentNameInfo.isStudent = isStudent;
-          });
+            }
+          );
         }
       });
 
@@ -1121,6 +1171,9 @@ export default {
       this.$nextTick(() => {
         this.updateTokenDisplayInfo();
       });
+
+      // 获取令牌信息
+      await this.loadTokenInfo();
     } catch (err) {
       console.error("初始化失败:", err);
       this.showError("初始化失败，请刷新页面重试");
@@ -1156,21 +1209,21 @@ export default {
 
     // 退出设备房间并清理监听
     try {
-      if (this.$offKvChanged && typeof this.$offKvChanged === 'function') {
+      if (this.$offKvChanged && typeof this.$offKvChanged === "function") {
         this.$offKvChanged();
         this.$offKvChanged = null;
       }
-      if (this.$offDeviceEvent && typeof this.$offDeviceEvent === 'function') {
+      if (this.$offDeviceEvent && typeof this.$offDeviceEvent === "function") {
         this.$offDeviceEvent();
         this.$offDeviceEvent = null;
       }
-      if (this.$offConnect && typeof this.$offConnect === 'function') {
+      if (this.$offConnect && typeof this.$offConnect === "function") {
         this.$offConnect();
         this.$offConnect = null;
       }
       leaveAll();
     } catch (e) {
-      console.warn('主页面事件清理失败:', e);
+      console.warn("主页面事件清理失败:", e);
     }
   },
 
@@ -1179,7 +1232,8 @@ export default {
     async loadDeviceInfo() {
       try {
         const provider = getSetting("server.provider");
-        const useServer = provider === "kv-server" || provider === "classworkscloud";
+        const useServer =
+          provider === "kv-server" || provider === "classworkscloud";
         if (!useServer) return;
 
         const res = await kvServerProvider.loadNamespaceInfo();
@@ -1187,56 +1241,82 @@ export default {
 
         this.state.namespaceInfo = res || null;
         // 兜底填充设备名，避免重复解析
-        this.state.deviceName =
-          res?.account?.deviceName ||
-          "";
+        this.state.deviceName = res?.account?.deviceName || "";
       } catch (e) {
         console.warn("加载设备信息失败:", e);
       }
     },
 
+    // 获取令牌信息
+    async loadTokenInfo() {
+      try {
+        const provider = getSetting("server.provider");
+        const isKv = provider === "kv-server" || provider === "classworkscloud";
+        if (!isKv) return;
+
+        const kvToken = getSetting("server.kvToken");
+        if (!kvToken) return;
+
+        const serverUrl = getSetting("server.domain");
+        if (!serverUrl) return;
+
+        // 获取 Token 信息
+        const tokenResponse = await axios.get(`${serverUrl}/kv/_token`, {
+          headers: {
+            Authorization: `Bearer ${kvToken}`,
+          },
+        });
+
+        this.tokenInfo = tokenResponse.data;
+        console.log("Token info loaded:", this.tokenInfo);
+      } catch (error) {
+        console.warn("Failed to load token info:", error);
+        this.tokenInfo = null;
+      }
+    },
+
     // 更新 Token 显示信息
     updateTokenDisplayInfo() {
-      const manager = this.$refs.studentNameManager
+      const manager = this.$refs.studentNameManager;
       if (!manager || !manager.hasToken) {
-        this.tokenDisplayInfo.show = false
-        this.tokenDisplayInfo.readonly = false
-        return
+        this.tokenDisplayInfo.show = false;
+        this.tokenDisplayInfo.readonly = false;
+        return;
       }
 
-      const displayName = manager.displayName
-      const isReadOnly = manager.isReadOnly
-      const isStudent = manager.isStudentToken
+      const displayName = manager.displayName;
+      const isReadOnly = manager.isReadOnly;
+      const isStudent = manager.isStudentToken;
 
       // 设置只读状态（对所有类型的 token 都显示）
-      this.tokenDisplayInfo.readonly = isReadOnly
+      this.tokenDisplayInfo.readonly = isReadOnly;
 
       // 只有学生类型的 token 才显示名称 chip
       if (!isStudent) {
-        this.tokenDisplayInfo.show = false
-        return
+        this.tokenDisplayInfo.show = false;
+        return;
       }
 
       // 设置学生名称显示（始终蓝色）
-      this.tokenDisplayInfo.text = displayName
-      this.tokenDisplayInfo.color = 'primary'
-      this.tokenDisplayInfo.icon = 'mdi-account'
-      this.tokenDisplayInfo.disabled = isReadOnly // 只读时不可点击
-      this.tokenDisplayInfo.show = true
+      this.tokenDisplayInfo.text = displayName;
+      this.tokenDisplayInfo.color = "primary";
+      this.tokenDisplayInfo.icon = "mdi-account";
+      this.tokenDisplayInfo.disabled = isReadOnly; // 只读时不可点击
+      this.tokenDisplayInfo.show = true;
     },
 
     // 处理 Token Chip 点击
     handleTokenChipClick() {
-      console.log('Token chip clicked')
-      const manager = this.$refs.studentNameManager
-      console.log('Manager:', manager)
-      console.log('Is student token:', manager?.isStudentToken)
+      console.log("Token chip clicked");
+      const manager = this.$refs.studentNameManager;
+      console.log("Manager:", manager);
+      console.log("Is student token:", manager?.isStudentToken);
 
       if (manager && manager.isStudentToken) {
-        console.log('Opening dialog...')
-        manager.openDialog()
+        console.log("Opening dialog...");
+        manager.openDialog();
       } else {
-        console.log('Cannot open dialog - conditions not met')
+        console.log("Cannot open dialog - conditions not met");
       }
     },
 
@@ -1318,7 +1398,12 @@ export default {
             this.state.showNoDataMessage = true;
             this.state.noDataMessage = response.error.message;
             // 如果强制清空或当前没有数据时才设置为空
-            if (forceClear || !this.state.boardData || (!this.state.boardData.homework && !this.state.boardData.attendance)) {
+            if (
+              forceClear ||
+              !this.state.boardData ||
+              (!this.state.boardData.homework &&
+                !this.state.boardData.attendance)
+            ) {
               this.state.boardData = {
                 homework: {},
                 attendance: { absent: [], late: [], exclude: [] },
@@ -1345,7 +1430,11 @@ export default {
         console.error("数据加载失败:", error);
         this.$message.error("下载失败", error.message);
         // 如果强制清空或当前没有任何数据，才初始化为空数据
-        if (forceClear || !this.state.boardData || (!this.state.boardData.homework && !this.state.boardData.attendance)) {
+        if (
+          forceClear ||
+          !this.state.boardData ||
+          (!this.state.boardData.homework && !this.state.boardData.attendance)
+        ) {
           this.state.boardData = {
             homework: {},
             attendance: { absent: [], late: [], exclude: [] },
@@ -1612,6 +1701,8 @@ export default {
       this.updateBackendUrl();
       // 设置更新时尝试刷新设备名称（例如 Token 或域名变更）
       this.loadDeviceInfo();
+      // 重新加载令牌信息（Token 可能已变更）
+      this.loadTokenInfo();
       // 触发依赖刷新（例如 shouldShowInit）
       this.settingsTick++;
     },
@@ -1634,8 +1725,7 @@ export default {
             .replace({
               query: { date: formattedDate },
             })
-            .catch(() => {
-            });
+            .catch(() => {});
 
           // Load both data and subjects in parallel, force clear data when switching dates
           await Promise.all([this.downloadData(true), this.loadSubjects()]);
@@ -1748,13 +1838,13 @@ export default {
           // 新格式：直接事件数据
           if (eventData.content && eventData.timestamp) {
             msg = {
-              uuid: eventData.senderId || 'realtime',
+              uuid: eventData.senderId || "realtime",
               key: eventData.content.key,
               action: eventData.content.action,
               created: eventData.content.created,
               updatedAt: eventData.content.updatedAt || eventData.timestamp,
               deletedAt: eventData.content.deletedAt,
-              batch: eventData.content.batch
+              batch: eventData.content.batch,
             };
           }
 
@@ -1766,9 +1856,12 @@ export default {
         // 保留设备事件监听（为未来扩展）
         this.deviceEventHandler = createDeviceEventHandler({
           onKvChanged: handler,
-          enableLegacySupport: true
+          enableLegacySupport: true,
         });
-        this.$offDeviceEvent = socketOn("device-event", this.deviceEventHandler);
+        this.$offDeviceEvent = socketOn(
+          "device-event",
+          this.deviceEventHandler
+        );
       } catch (e) {
         console.warn("实时频道初始化失败", e);
       }
@@ -2334,8 +2427,10 @@ export default {
       try {
         const urlParams = new URLSearchParams(window.location.search);
         const namespace = urlParams.get("namespace");
-        const authCode = urlParams.get("authCode") || urlParams.get("auth_code");
-        const autoExecute = urlParams.get("autoExecute") || urlParams.get("auto_execute");
+        const authCode =
+          urlParams.get("authCode") || urlParams.get("auth_code");
+        const autoExecute =
+          urlParams.get("autoExecute") || urlParams.get("auto_execute");
 
         if (namespace) {
           this.preconfigData.namespace = namespace;
@@ -2347,11 +2442,17 @@ export default {
           console.log("检测到预配数据:", {
             namespace: this.preconfigData.namespace,
             hasAuthCode: !!this.preconfigData.authCode,
-            autoExecute: this.preconfigData.autoExecute
+            autoExecute: this.preconfigData.autoExecute,
           });
 
           // 清理URL参数，避免重复处理
-          this.cleanupUrlParams(['namespace', 'authCode', 'auth_code', 'autoExecute', 'auto_execute']);
+          this.cleanupUrlParams([
+            "namespace",
+            "authCode",
+            "auth_code",
+            "autoExecute",
+            "auto_execute",
+          ]);
         }
       } catch (error) {
         console.error("解析预配数据失败:", error);
@@ -2362,7 +2463,9 @@ export default {
     parseBoolean(value) {
       if (!value) return false;
       const lowerValue = value.toLowerCase();
-      return lowerValue === 'true' || lowerValue === '1' || lowerValue === 'yes';
+      return (
+        lowerValue === "true" || lowerValue === "1" || lowerValue === "yes"
+      );
     },
 
     // 清理URL参数
@@ -2371,7 +2474,7 @@ export default {
         const url = new URL(window.location);
         let hasChanged = false;
 
-        params.forEach(param => {
+        params.forEach((param) => {
           if (url.searchParams.has(param)) {
             url.searchParams.delete(param);
             hasChanged = true;