diff --git a/package.json b/package.json
index 89edad1..0bd3aa6 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "pinyin-pro": "^3.26.0",
     "roboto-fontface": "*",
     "typewriter-effect": "^2.21.0",
+    "uuid": "^9.0.1",
     "vue": "^3.4.31",
     "vuetify": "^3.8.0"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b1f7ac2..dcb427c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -29,6 +29,9 @@ importers:
       typewriter-effect:
         specifier: ^2.21.0
         version: 2.21.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
+      uuid:
+        specifier: ^9.0.1
+        version: 9.0.1
       vue:
         specifier: ^3.4.31
         version: 3.5.13
@@ -3229,6 +3232,10 @@ packages:
   util-deprecate@1.0.2:
     resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
 
+  uuid@9.0.1:
+    resolution: {integrity: sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==}
+    hasBin: true
+
   varint@6.0.0:
     resolution: {integrity: sha512-cXEIW6cfr15lFv563k4GuVuW/fiwjknytD37jIOLSdSWuOI6WnO/oKwmP2FQTU2l01LP8/M5TSAJpzUaGe3uWg==}
 
@@ -6904,6 +6911,8 @@ snapshots:
 
   util-deprecate@1.0.2: {}
 
+  uuid@9.0.1: {}
+
   varint@6.0.0: {}
 
   vite-plugin-pwa@1.0.0(@vite-pwa/assets-generator@1.0.0)(vite@5.4.17(sass-embedded@1.86.3)(sass@1.86.3)(terser@5.39.0))(workbox-build@7.3.0)(workbox-window@7.3.0):
diff --git a/src/axios/axios.js b/src/axios/axios.js
new file mode 100644
index 0000000..889a94e
--- /dev/null
+++ b/src/axios/axios.js
@@ -0,0 +1,26 @@
+import axios from "axios";
+import { getSetting } from '@/utils/settings';
+
+// 基本配置
+const axiosInstance = axios.create({
+  // 可以在这里添加基础配置，例如超时时间等
+  timeout: 10000,
+});
+
+// 请求拦截器
+axiosInstance.interceptors.request.use(
+  (requestConfig) => {
+    // 确保每次请求时都获取最新的 siteKey
+    const siteKey = getSetting('server.siteKey');
+    if (siteKey) {
+      requestConfig.headers["x-site-key"] = siteKey;
+    }
+    return requestConfig;
+  },
+  (error) => {
+    console.log(error);
+    return Promise.reject(error);
+  }
+);
+
+export default axiosInstance;
diff --git a/src/components/MigrationTool.vue b/src/components/MigrationTool.vue
new file mode 100644
index 0000000..9dc1c6b
--- /dev/null
+++ b/src/components/MigrationTool.vue
@@ -0,0 +1,698 @@
+<template>
+  <div>
+    <v-card class="mb-6">
+      <v-card-title>迁移设置</v-card-title>
+      <v-card-text>
+        <v-row>
+          <v-col cols="12" md="6">
+            <v-text-field
+              v-model="classNumber"
+              label="班级编号"
+              hint="请输入需要迁移的班级编号"
+              persistent-hint
+              prepend-icon="mdi-account-group"
+            ></v-text-field>
+          </v-col>
+
+          <v-col cols="12" md="6">
+            <v-text-field
+              v-model="machineId"
+              label="设备标识 (UUID)"
+              hint="系统已自动填充设备标识，通常无需修改"
+              persistent-hint
+              prepend-icon="mdi-identifier"
+              readonly
+            ></v-text-field>
+          </v-col>
+        </v-row>
+
+        <v-radio-group v-model="migrationType" class="mt-2">
+          <v-radio value="local" label="本地数据迁移"></v-radio>
+          <v-radio value="server" label="服务器数据迁移"></v-radio>
+        </v-radio-group>
+
+        <div v-if="migrationType === 'server'" class="mt-4">
+          <v-text-field
+            v-model="serverUrl"
+            label="服务器地址"
+            hint="输入服务器域名，例如：https://example.com"
+            persistent-hint
+            prepend-icon="mdi-server"
+          ></v-text-field>
+
+          <v-alert
+            density="compact"
+            type="info"
+            variant="outlined"
+            class="mt-2"
+          >
+            服务器接口格式：<br>
+            - 配置接口：域名/班号/config<br>
+            - 作业数据接口：域名/班号/homework?date=YYYY-MM-DD
+          </v-alert>
+
+          <div class="d-flex align-center mt-4">
+            <v-icon color="warning" class="mr-2">mdi-calendar-range</v-icon>
+            <span class="text-subtitle-1">选择迁移时间范围：</span>
+          </div>
+
+          <v-row class="mt-1">
+            <v-col cols="12" md="6">
+              <v-text-field
+                v-model="startDate"
+                label="开始日期"
+                type="date"
+                prepend-icon="mdi-calendar-start"
+              ></v-text-field>
+            </v-col>
+
+            <v-col cols="12" md="6">
+              <v-text-field
+                v-model="endDate"
+                label="结束日期"
+                type="date"
+                prepend-icon="mdi-calendar-end"
+              ></v-text-field>
+            </v-col>
+          </v-row>
+        </div>
+      </v-card-text>
+    </v-card>
+
+    <!-- 统一的数据显示卡片 -->
+    <v-card class="mb-6">
+      <v-card-title class="d-flex align-center">
+        <span>{{ migrationType === 'local' ? '本地数据库内容' : '服务器数据预览' }}</span>
+        <v-spacer></v-spacer>
+        <v-btn
+          color="primary"
+          @click="migrationType === 'local' ? scanLocalDatabase() : previewServerData()"
+          :loading="loading || scanning"
+        >
+          {{ migrationType === 'local' ? '扫描数据' : '预览数据' }}
+        </v-btn>
+      </v-card-title>
+      <v-card-text>
+        <v-alert
+          v-if="displayItems.length === 0 && !loading && !scanning"
+          type="info"
+        >
+          {{ migrationType === 'local'
+            ? '尚未扫描本地数据或未找到可迁移的数据。点击"扫描数据"按钮开始扫描。'
+            : '尚未预览服务器数据或未找到可迁移的数据。点击"预览数据"按钮开始查询。'
+          }}
+        </v-alert>
+
+        <v-data-table
+          v-if="displayItems.length > 0"
+          :headers="headers"
+          :items="displayItems"
+          :items-per-page="10"
+          item-value="key"
+          class="elevation-1"
+        >
+          <template #[`item.type`]="{ item }">
+            <v-chip :color="getItemType(item) === 'config' ? 'primary' : 'secondary'" size="small">
+              {{ getItemType(item) === 'config' ? '配置' : '作业数据' }}
+            </v-chip>
+          </template>
+
+          <template #[`item.date`]="{ item }">
+            {{ formatDate(getItemDate(item)) }}
+          </template>
+        </v-data-table>
+
+        <v-alert
+          v-if="displayItems.length > 0"
+          type="info"
+          density="compact"
+          class="mt-2"
+        >
+          系统将迁移表格中显示的所有数据项，迁移前请确认数据完整性。
+        </v-alert>
+
+        <v-skeleton-loader v-if="loading || scanning" type="table"></v-skeleton-loader>
+      </v-card-text>
+    </v-card>
+
+    <v-card class="mb-6">
+      <v-card-title>迁移目标</v-card-title>
+      <v-card-text>
+        <v-radio-group v-model="targetStorage">
+          <v-radio value="kv-local" label="本地 KV 存储"></v-radio>
+          <v-radio value="kv-server" label="服务器 KV 存储"></v-radio>
+        </v-radio-group>
+
+        <div v-if="targetStorage === 'kv-server'" class="mt-4">
+          <v-text-field
+            v-model="targetServerUrl"
+            label="目标服务器地址"
+            hint="输入KV服务器地址，例如：https://example.com/kv-api"
+            persistent-hint
+            prepend-icon="mdi-server-network"
+          ></v-text-field>
+        </div>
+      </v-card-text>
+    </v-card>
+
+    <div class="d-flex justify-end mb-6">
+      <v-btn
+        color="success"
+        @click="startMigration"
+        :loading="migrating"
+        :disabled="!canMigrate"
+      >
+        开始迁移
+      </v-btn>
+    </div>
+
+    <v-dialog v-model="showResult" max-width="600">
+      <v-card>
+        <v-card-title class="d-flex align-center">
+          <v-icon
+            :color="migrationSuccess ? 'success' : 'error'"
+            class="mr-2"
+          >
+            {{ migrationSuccess ? 'mdi-check-circle' : 'mdi-alert-circle' }}
+          </v-icon>
+          <span>{{ migrationSuccess ? '迁移成功' : '迁移失败' }}</span>
+        </v-card-title>
+        <v-card-text>
+          <v-alert
+            v-if="migrationError"
+            type="error"
+            class="mb-4"
+          >
+            {{ migrationError }}
+          </v-alert>
+
+          <div v-if="migrationSuccess">
+            <p>成功迁移 {{ migrationStats.success }} 项数据到 {{ targetStorage === 'kv-local' ? '本地' : '服务器' }} KV 存储。</p>
+            <v-divider class="my-4"></v-divider>
+            <v-list>
+              <v-list-subheader>迁移详情</v-list-subheader>
+              <v-list-item v-for="(item, index) in migrationResults" :key="index">
+                <v-list-item-title>
+                  {{ item.key }}
+                </v-list-item-title>
+                <v-list-item-subtitle>
+                  {{ item.success ? '成功' : '失败' }} {{ item.message }}
+                </v-list-item-subtitle>
+              </v-list-item>
+            </v-list>
+          </div>
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer></v-spacer>
+          <v-btn
+            color="primary"
+            @click="showResult = false"
+          >
+            关闭
+          </v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+  </div>
+</template>
+
+<script>
+import { openDB } from 'idb';
+import axios from '@/axios/axios';
+import { getSetting } from '@/utils/settings';
+
+export default {
+  name: 'MigrationTool',
+  data() {
+    return {
+      classNumber: 'G2405',
+      machineId: '',
+      migrationType: 'server',
+      serverUrl: 'https://class.wuyuan.dev',
+      targetStorage: 'kv-server',
+      targetServerUrl: 'http://localhost:3030',
+      startDate: this.getDateString(new Date(Date.now() - 30 * 24 * 60 * 60 * 1000)), // 30 days ago
+      endDate: this.getDateString(new Date()),
+      loading: false,
+      scanning: false,
+      migrating: false,
+      showServerPreview: false,
+      showResult: false,
+      migrationSuccess: false,
+      migrationError: null,
+      migrationStats: {
+        total: 0,
+        success: 0,
+        failed: 0
+      },
+      migrationResults: [],
+      localDbItems: [],
+      serverItems: [],
+      selectedItems: [],
+      headers: [
+        { title: '类型', key: 'type', sortable: true },
+        { title: '键名', key: 'key', sortable: true },
+        { title: '日期', key: 'date', sortable: true },
+        { title: '大小', key: 'size', sortable: true }
+      ]
+    };
+  },
+  computed: {
+    displayItems() {
+      return this.migrationType === 'local' ? this.localDbItems : this.serverItems;
+    },
+    canMigrate() {
+      return (
+        this.classNumber &&
+        this.machineId &&
+        this.displayItems.length > 0 &&
+        (this.targetStorage !== 'kv-server' || this.targetServerUrl)
+      );
+    }
+  },
+  async mounted() {
+    try {
+      await this.initMachineId();
+    } catch (error) {
+      console.error('初始化设备ID失败:', error);
+    }
+  },
+  methods: {
+    // 安全地获取项目类型，处理可能的undefined情况
+    getItemType(item) {
+      if (!item) return '';
+      // 处理直接对象和v-data-table的item对象格式
+      return item.raw ? item.raw.type : item.type;
+    },
+
+    // 安全地获取项目日期，处理可能的undefined情况
+    getItemDate(item) {
+      if (!item) return null;
+      return item.raw ? item.raw.date : item.date;
+    },
+
+    getDateString(date) {
+      return date.toISOString().split('T')[0];
+    },
+
+    // 初始化设备ID
+    async initMachineId() {
+      this.machineId = getSetting("device.uuid");
+    },
+
+    // 获取请求头，包含网站令牌
+    getRequestHeaders() {
+      const headers = { Accept: "application/json" };
+      const siteKey = getSetting("server.siteKey");
+
+      if (siteKey) {
+        headers['x-site-key'] = siteKey;
+      }
+
+      return headers;
+    },
+
+    // 扫描本地数据库
+    async scanLocalDatabase() {
+      if (!this.classNumber) {
+        this.$emit('message', { text: '请先输入班级编号', type: 'error' });
+        return;
+      }
+
+      this.scanning = true;
+      this.localDbItems = [];
+
+      try {
+        // 打开数据库
+        const db = await openDB("ClassworksDB", 2);
+
+        // 检查旧的数据存储
+        if (db.objectStoreNames.contains("homework") && db.objectStoreNames.contains("config")) {
+          // 从旧的作业存储中读取数据
+          const homework = db.transaction("homework", "readonly");
+          const hwStore = homework.objectStore("homework");
+          const hwKeys = await hwStore.getAllKeys();
+
+          // 过滤当前班级的键
+          const classKeys = hwKeys.filter(key => key.startsWith(`homework_${this.classNumber}_`));
+
+          for (const key of classKeys) {
+            const value = await hwStore.get(key);
+
+            // 从键中提取日期: homework_classNumber_YYYY-MM-DD
+            const datePart = key.split('_')[2];
+            let dateObj = null;
+
+            if (datePart) {
+              const [year, month, day] = datePart.split('-');
+              dateObj = new Date(year, month - 1, day);
+            }
+
+            this.localDbItems.push({
+              type: 'homework',
+              key,
+              originalKey: key,
+              date: dateObj,
+              size: this.getDataSize(value) + ' KB',
+              value
+            });
+          }
+
+          // 检查配置
+          const configKey = `config_${this.classNumber}`;
+          const configValue = await db.get("config", configKey);
+
+          if (configValue) {
+            this.localDbItems.push({
+              type: 'config',
+              key: configKey,
+              originalKey: configKey,
+              date: null,
+              size: this.getDataSize(configValue) + ' KB',
+              value: configValue
+            });
+          }
+        }
+
+        // 检查新的KV存储中是否已有数据
+        if (db.objectStoreNames.contains("kv")) {
+          const kvTx = db.transaction("kv", "readonly");
+          const kvStore = kvTx.objectStore("kv");
+          const kvKeys = await kvStore.getAllKeys();
+
+          // 过滤当前班级的键
+          const classKvKeys = kvKeys.filter(key => key.startsWith(`${this.classNumber}/`));
+
+          for (const key of classKvKeys) {
+            const value = await kvStore.get(key);
+
+            // 判断是配置还是作业数据
+            const isConfig = key.includes(`/${this.classNumber}/classworks-config`);
+            let dateObj = null;
+
+            if (!isConfig) {
+              // 从键中提取日期: classNumber/classworks-data-YYYYMMDD
+              const match = key.match(/classworks-data-(\d{4})(\d{2})(\d{2})/);
+              if (match) {
+                const [, year, month, day] = match;
+                dateObj = new Date(year, parseInt(month) - 1, day);
+              }
+            }
+
+            this.localDbItems.push({
+              type: isConfig ? 'config' : 'homework',
+              key,
+              originalKey: key,
+              date: dateObj,
+              size: this.getDataSize(value) + ' KB',
+              value,
+              isKv: true
+            });
+          }
+        }
+      } catch (error) {
+        console.error('扫描本地数据库失败:', error);
+        this.$emit('message', { text: '扫描数据库失败: ' + error.message, type: 'error' });
+      } finally {
+        this.scanning = false;
+      }
+    },
+
+    // 计算数据大小（KB）
+    getDataSize(data) {
+      if (!data) return 0;
+      const str = typeof data === 'string' ? data : JSON.stringify(data);
+      return Math.round((str.length * 2) / 1024 * 100) / 100; // 近似值
+    },
+
+    // 格式化日期显示
+    formatDate(date) {
+      if (!date) return '配置 (无日期)';
+      return date.toLocaleDateString();
+    },
+
+    // 预览服务器数据
+    async previewServerData() {
+      if (!this.serverUrl || !this.classNumber || !this.startDate || !this.endDate) {
+        this.$emit('message', { text: '请填写完整的服务器信息和时间范围', type: 'error' });
+        return;
+      }
+
+      this.loading = true;
+      this.serverItems = [];
+
+      try {
+        // 先获取配置信息
+        try {
+          // 构建配置请求URL: 域名/班号/config
+          const configUrl = `${this.serverUrl}/${this.classNumber}/config`;
+
+          const configRes = await axios.get(configUrl, {
+            headers: this.getRequestHeaders()
+          });
+          if (configRes.data) {
+            this.serverItems.push({
+              type: 'config',
+              key: `config_${this.classNumber}`,
+              originalKey: configUrl,
+              date: null,
+              size: this.getDataSize(configRes.data) + ' KB',
+              value: configRes.data
+            });
+          }
+        } catch (configError) {
+          console.warn('无法获取配置:', configError);
+        }
+
+        // 获取日期范围内的所有数据
+        const start = new Date(this.startDate);
+        const end = new Date(this.endDate);
+        const dateArray = this.getDateArray(start, end);
+
+        for (const date of dateArray) {
+          const dateStr = this.formatDateForServer(date);
+          try {
+            // 构建数据请求URL: 域名/班号/homework?date=YYYY-MM-DD
+            const homeworkUrl = `${this.serverUrl}/${this.classNumber}/homework?date=${dateStr}`;
+
+            const res = await axios.get(homeworkUrl, {
+              headers: this.getRequestHeaders()
+            });
+            if (res.data) {
+              this.serverItems.push({
+                type: 'homework',
+                key: `homework_${this.classNumber}_${dateStr}`,
+                originalKey: homeworkUrl,
+                date,
+                size: this.getDataSize(res.data) + ' KB',
+                value: res.data
+              });
+            }
+          } catch (error) {
+            if (error.response?.status !== 404) {
+              console.warn(`无法获取 ${dateStr} 的数据:`, error);
+            }
+          }
+        }
+
+        this.showServerPreview = true;
+      } catch (error) {
+        console.error('预览服务器数据失败:', error);
+        this.$emit('message', { text: '预览数据失败: ' + error.message, type: 'error' });
+      } finally {
+        this.loading = false;
+      }
+    },
+
+    // 获取日期范围内的所有日期
+    getDateArray(start, end) {
+      const dateArray = [];
+      const currentDate = new Date(start);
+
+      while (currentDate <= end) {
+        dateArray.push(new Date(currentDate));
+        currentDate.setDate(currentDate.getDate() + 1);
+      }
+
+      return dateArray;
+    },
+
+    // 格式化日期为服务器格式 (YYYY-MM-DD)
+    formatDateForServer(date) {
+      const year = date.getFullYear();
+      const month = String(date.getMonth() + 1).padStart(2, '0');
+      const day = String(date.getDate()).padStart(2, '0');
+      return `${year}-${month}-${day}`;
+    },
+
+    // 格式化日期为KV存储格式 (YYYYMMDD)
+    formatDateForKv(date) {
+      const year = date.getFullYear();
+      const month = String(date.getMonth() + 1).padStart(2, '0');
+      const day = String(date.getDate()).padStart(2, '0');
+      return `${year}${month}${day}`;
+    },
+
+    // 开始迁移
+    async startMigration() {
+      if (!this.canMigrate) {
+        this.$emit('message', { text: '无法开始迁移，请检查配置', type: 'error' });
+        return;
+      }
+
+      this.migrating = true;
+      this.migrationResults = [];
+      this.migrationStats = {
+        total: this.displayItems.length,
+        success: 0,
+        failed: 0
+      };
+
+      try {
+        // 处理所有数据项，但先处理配置，再处理作业数据
+        const configItems = this.displayItems.filter(item => this.getItemType(item) === 'config');
+        const dataItems = this.displayItems.filter(item => this.getItemType(item) === 'homework');
+
+        // 先处理配置项
+        for (const item of configItems) {
+          await this.migrateItem(item);
+        }
+
+        // 再处理数据项
+        for (const item of dataItems) {
+          await this.migrateItem(item);
+        }
+
+        this.migrationSuccess = this.migrationStats.failed === 0;
+        this.showResult = true;
+      } catch (error) {
+        console.error('迁移过程出错:', error);
+        this.migrationSuccess = false;
+        this.migrationError = error.message;
+        this.showResult = true;
+      } finally {
+        this.migrating = false;
+      }
+    },
+
+    // 迁移单个数据项
+    async migrateItem(item) {
+      try {
+        let result;
+
+        if (this.targetStorage === 'kv-local') {
+          result = await this.migrateToLocalKv(item);
+        } else {
+          result = await this.migrateToServerKv(item);
+        }
+
+        this.migrationResults.push({
+          key: item.key,
+          success: result.success,
+          message: result.message
+        });
+
+        if (result.success) {
+          this.migrationStats.success++;
+        } else {
+          this.migrationStats.failed++;
+        }
+      } catch (error) {
+        console.error(`迁移 ${item.key} 失败:`, error);
+        this.migrationResults.push({
+          key: item.key,
+          success: false,
+          message: error.message
+        });
+        this.migrationStats.failed++;
+      }
+    },
+
+    // 迁移到本地KV存储
+    async migrateToLocalKv(item) {
+      try {
+        const db = await openDB("ClassworksDB", 2, {
+          upgrade(db) {
+            if (!db.objectStoreNames.contains("kv")) {
+              db.createObjectStore("kv");
+            }
+          }
+        });
+
+        const value = typeof item.value === 'string' ? JSON.parse(item.value) : item.value;
+        const itemType = this.getItemType(item);
+
+        if (itemType === 'config') {
+          // 配置键名: classNumber/classworks-config
+          await db.put("kv", JSON.stringify(value), `${this.classNumber}/classworks-config`);
+          return { success: true, message: '配置已迁移' };
+        } else {
+          // 数据键名: classNumber/classworks-data-YYYYMMDD
+          const itemDate = this.getItemDate(item);
+          let dateStr;
+
+          if (itemDate) {
+            dateStr = this.formatDateForKv(itemDate);
+          } else {
+            // 尝试从键名提取日期
+            const match = item.key.match(/(\d{4})-(\d{2})-(\d{2})/);
+            if (match) {
+              const [, year, month, day] = match;
+              dateStr = `${year}${month}${day}`;
+            } else {
+              return { success: false, message: '无法确定日期格式' };
+            }
+          }
+
+          await db.put("kv", JSON.stringify(value), `${this.classNumber}/classworks-data-${dateStr}`);
+          return { success: true, message: `${dateStr} 数据已迁移` };
+        }
+      } catch (error) {
+        console.error('本地KV迁移失败:', error);
+        return { success: false, message: error.message };
+      }
+    },
+
+    // 迁移到服务器KV存储
+    async migrateToServerKv(item) {
+      try {
+        const value = typeof item.value === 'string' ? JSON.parse(item.value) : item.value;
+        const itemType = this.getItemType(item);
+
+        if (itemType === 'config') {
+          // 配置
+          await axios.post(`${this.targetServerUrl}/${this.machineId}/classworks-config`, value, {
+            headers: this.getRequestHeaders()
+          });
+          return { success: true, message: '配置已迁移到服务器' };
+        } else {
+          // 数据
+          const itemDate = this.getItemDate(item);
+          let dateStr;
+
+          if (itemDate) {
+            dateStr = this.formatDateForKv(itemDate);
+          } else {
+            // 尝试从键名提取日期
+            const match = item.key.match(/(\d{4})-(\d{2})-(\d{2})/);
+            if (match) {
+              const [, year, month, day] = match;
+              dateStr = `${year}${month}${day}`;
+            } else {
+              return { success: false, message: '无法确定日期格式' };
+            }
+          }
+
+          await axios.post(`${this.targetServerUrl}/${this.machineId}/classworks-data-${dateStr}`, value, {
+            headers: this.getRequestHeaders()
+          });
+          return { success: true, message: `${dateStr} 数据已迁移到服务器` };
+        }
+      } catch (error) {
+        console.error('服务器KV迁移失败:', error);
+        return { success: false, message: error.response?.data?.message || error.message };
+      }
+    }
+  }
+};
+</script>
\ No newline at end of file
diff --git a/src/components/settings/SettingItem.vue b/src/components/settings/SettingItem.vue
index 63b1197..95d3c45 100644
--- a/src/components/settings/SettingItem.vue
+++ b/src/components/settings/SettingItem.vue
@@ -35,7 +35,7 @@
               @click="adjustValue(stepValue)" />
           </div>
         </div>
-        
+
         <v-menu location="bottom">
           <template v-slot:activator="{ props }">
             <v-btn icon="mdi-dots-vertical" size="small" variant="text" v-bind="props" class="ml-2"
@@ -170,7 +170,9 @@ export default {
         },
         'server.provider': {
           'server': '远程服务器',
-          'indexedDB': '本地存储'
+          'indexedDB': '本地存储',
+          'kv-local': 'KV本地存储',
+          'kv-server': 'KV远程服务器'
         }
       },
       // 默认图标映射，按设置类型
@@ -233,12 +235,12 @@ export default {
       if (this.icon) {
         return this.icon;
       }
-      
+
       // 其次使用定义中的图标
       if (this.definition && this.definition.icon) {
         return this.definition.icon;
       }
-      
+
       // 最后使用基于类型的默认图标
       return this.defaultIcons[this.type] || 'mdi-cog-outline';
     }
diff --git a/src/components/settings/cards/DataProviderSettingsCard.vue b/src/components/settings/cards/DataProviderSettingsCard.vue
index e276a3b..eb36823 100644
--- a/src/components/settings/cards/DataProviderSettingsCard.vue
+++ b/src/components/settings/cards/DataProviderSettingsCard.vue
@@ -2,7 +2,7 @@
   <settings-card title="数据源设置" icon="mdi-database-cog">
     <v-list>
       <!-- 服务器模式设置 -->
-      <template v-if="currentProvider === 'server'">
+      <template v-if="currentProvider === 'server' || currentProvider === 'kv-server'">
         <v-list-item>
           <template #prepend>
             <v-icon icon="mdi-lan-connect" class="mr-3" />
@@ -17,7 +17,7 @@
       </template>
 
       <!-- IndexedDB设置 -->
-      <template v-if="currentProvider === 'indexedDB'">
+      <template v-if="currentProvider === 'indexedDB' || currentProvider === 'kv-local'">
         <v-list-item>
           <template #prepend>
             <v-icon icon="mdi-database" class="mr-3" />
@@ -39,7 +39,32 @@
             <v-btn variant="tonal" @click="exportData"> 导出 </v-btn>
           </template>
         </v-list-item>
+
+        <!-- 显示机器ID，仅对KV本地存储有效 -->
+        <v-list-item v-if="currentProvider === 'kv-local'">
+          <template #prepend>
+            <v-icon icon="mdi-identifier" class="mr-3" />
+          </template>
+          <v-list-item-title>本机唯一标识符</v-list-item-title>
+          <v-list-item-subtitle v-if="machineId">{{ machineId }}</v-list-item-subtitle>
+          <v-list-item-subtitle v-else>正在加载...</v-list-item-subtitle>
+        </v-list-item>
+
+        <!-- 数据迁移，仅对KV本地存储有效 -->
+        <v-list-item v-if="currentProvider === 'kv-local'">
+          <template #prepend>
+            <v-icon icon="mdi-database-import" class="mr-3" />
+          </template>
+          <v-list-item-title>迁移旧数据</v-list-item-title>
+          <v-list-item-subtitle>将旧的存储格式数据转移到新的KV存储</v-list-item-subtitle>
+          <template #append>
+            <v-btn :loading="migrateLoading" variant="tonal" @click="migrateData">
+              迁移
+            </v-btn>
+          </template>
+        </v-list-item>
       </template>
+
       <v-list-item>
         <template #prepend>
           <v-icon icon="mdi-lan-connect" class="mr-3" />
@@ -50,7 +75,22 @@
             查看
           </v-btn>
         </template>
-      </v-list-item> <v-list-item>
+      </v-list-item>
+
+      <v-list-item>
+        <template #prepend>
+          <v-icon icon="mdi-database-sync" class="mr-3" />
+        </template>
+        <v-list-item-title>高级数据迁移工具</v-list-item-title>
+        <v-list-item-subtitle>更强大的数据迁移工具，支持从本地或服务器迁移到KV存储</v-list-item-subtitle>
+        <template #append>
+          <v-btn variant="tonal" color="primary" to="/datamigration">
+            打开
+          </v-btn>
+        </template>
+      </v-list-item>
+
+      <v-list-item>
         <template #prepend>
           <v-icon icon="mdi-lan-connect" class="mr-3" />
         </template>
@@ -82,6 +122,8 @@
 import SettingsCard from "@/components/SettingsCard.vue";
 import { getSetting } from "@/utils/settings";
 import axios from "axios";
+import { getMachineId } from "@/utils/providers/kvProvider";
+
 export default {
   name: "DataProviderSettingsCard",
   components: { SettingsCard },
@@ -94,6 +136,8 @@ export default {
       confirmTitle: "",
       confirmMessage: "",
       confirmAction: null,
+      machineId: null,
+      migrateLoading: false,
     };
   },
 
@@ -101,6 +145,21 @@ export default {
     currentProvider() {
       return getSetting("server.provider");
     },
+
+    isKvProvider() {
+      return this.currentProvider === 'kv-local' || this.currentProvider === 'kv-server';
+    }
+  },
+
+  async created() {
+    // 如果是KV本地存储，获取机器ID
+    if (this.currentProvider === 'kv-local') {
+      try {
+        this.machineId = await getMachineId();
+      } catch (error) {
+        console.error("获取机器ID失败:", error);
+      }
+    }
   },
 
   methods: {
@@ -109,9 +168,17 @@ export default {
       this.serverchecktime = new Date();
       try {
         const domain = getSetting("server.domain");
+        const siteKey = getSetting("server.siteKey");
+
+        // Prepare headers including site key if available
+        const headers = { Accept: "application/json" };
+        if (siteKey) {
+          headers['x-site-key'] = siteKey;
+        }
+
         const response = await axios.get(`${domain}/api/test`, {
           method: "GET",
-          headers: { Accept: "application/json" },
+          headers
         });
 
         if (response.data.status === "success") {
@@ -160,6 +227,13 @@ export default {
         await window.indexedDB.deleteDatabase(DBName);
         this.$message.success("清除成功", "数据库缓存已清除");
         this.confirmDialog = false;
+
+        // 如果是KV提供者，需要刷新页面以生成新的UUID
+        if (this.isKvProvider) {
+          setTimeout(() => {
+            window.location.reload();
+          }, 1500);
+        }
       } catch (error) {
         this.$message.error("清除失败", error.message);
       }
@@ -214,6 +288,12 @@ export default {
       }
     },
 
+    async migrateData() {
+      this.migrateLoading = true;
+      this.$router.push('/datamigration');
+      this.migrateLoading = false;
+    },
+
     handleConfirm() {
       if (this.confirmAction) {
         this.confirmAction();
diff --git a/src/components/settings/cards/ServerSettingsCard.vue b/src/components/settings/cards/ServerSettingsCard.vue
index fb0c1c6..1fd0872 100644
--- a/src/components/settings/cards/ServerSettingsCard.vue
+++ b/src/components/settings/cards/ServerSettingsCard.vue
@@ -2,11 +2,32 @@
   <settings-card title="数据源设置" icon="mdi-database" :loading="loading">
     <v-form>
       <setting-item setting-key="server.provider" title="数据提供者" />
-      <v-divider class="my-2" />
-      <setting-item setting-key="server.domain" title="服务器域名" />      <v-divider class="my-2" />
 
+      <v-alert v-if="isKvProvider" type="info" variant="tonal" class="my-2">
+        <v-alert-title>KV 存储系统</v-alert-title>
+        <p>KV存储系统使用本机唯一标识符(UUID)来区分不同设备的数据。</p>
+        <p v-if="currentProvider === 'kv-server'">
+          服务器端点格式: <code>http(s)://服务器域名/</code><br>
+          在服务器域名处仅填写基础URL，不需要任何路径。
+        </p>
+      </v-alert>
+
+      <v-divider class="my-2" />
+      <setting-item setting-key="server.domain" title="服务器域名" />
+      <v-divider class="my-2" />
       <setting-item setting-key="server.classNumber" title="班号" />
-     
+      <v-divider class="my-2" />
+      <setting-item setting-key="server.siteKey" title="网站令牌">
+        <template #description>
+          用于后端验证请求的安全令牌。如需要，请从系统管理员获取。
+        </template>
+      </setting-item>
+      <v-alert v-if="useServer" type="info" variant="tonal" class="my-2">
+        <v-icon icon="mdi-information-outline" class="mr-2"></v-icon>
+        <span>网站令牌将作为 <code>x-site-key</code> 请求头发送给服务器，用于验证请求的合法性。如果您的服务器需要此验证，请在上方输入有效的令牌。</span>
+      </v-alert>
+      <v-divider class="my-2" />
+      <setting-item setting-key="device.uuid" title="设备UUID" />
     </v-form>
   </settings-card>
 </template>
@@ -14,19 +35,27 @@
 <script>
 import SettingsCard from "@/components/SettingsCard.vue";
 import SettingItem from "@/components/settings/SettingItem.vue";
+import { getSetting } from "@/utils/settings";
+
 export default {
   name: "ServerSettingsCard",
-  components: { SettingsCard },
+  components: { SettingsCard, SettingItem },
   props: {
     loading: Boolean,
   },
   data() {
-    
-
-    return {
-     
-    };
+    return {};
   },
-  
+  computed: {
+    currentProvider() {
+      return getSetting("server.provider");
+    },
+    isKvProvider() {
+      return this.currentProvider === 'kv-local' || this.currentProvider === 'kv-server';
+    },
+    useServer() {
+      return this.currentProvider === 'server' || this.currentProvider === 'kv-server';
+    }
+  }
 };
 </script>
diff --git a/src/pages/DataMigration.vue b/src/pages/DataMigration.vue
new file mode 100644
index 0000000..775ba16
--- /dev/null
+++ b/src/pages/DataMigration.vue
@@ -0,0 +1,38 @@
+<template>
+  <v-container>
+    <v-row>
+      <v-col cols="12">
+        <div class="d-flex align-center mb-6">
+          <v-icon size="x-large" color="primary" class="mr-3">mdi-database-sync</v-icon>
+          <div>
+            <h1 class="text-h4">数据迁移工具</h1>
+            <div class="text-subtitle-1 text-grey">将现有数据迁移至 KV 存储系统</div>
+          </div>
+        </div>
+
+        <v-card class="mb-6" variant="tonal" color="info" density="compact">
+          <v-card-text class="d-flex align-center">
+            <v-icon color="info" class="mr-2">mdi-information-outline</v-icon>
+            <span>使用此工具可以将数据从旧存储系统迁移到新的 KV 存储系统，选择本地或云端迁移，以确保数据不会丢失。</span>
+          </v-card-text>
+        </v-card>
+
+        <MigrationTool />
+      </v-col>
+    </v-row>
+  </v-container>
+</template>
+
+<script>
+import MigrationTool from '@/components/MigrationTool.vue';
+
+export default {
+  name: 'DataMigrationPage',
+  components: {
+    MigrationTool
+  },
+  metaInfo: {
+    title: '数据迁移工具'
+  }
+}
+</script>
\ No newline at end of file
diff --git a/src/utils/dataProvider.js b/src/utils/dataProvider.js
index efaa49a..b405362 100644
--- a/src/utils/dataProvider.js
+++ b/src/utils/dataProvider.js
@@ -1,5 +1,7 @@
-import { serverProvider } from './providers/server';
-import { indexedDBProvider } from './providers/indexedDB';
+import { serverProvider } from "./providers/server";
+import { indexedDBProvider } from "./providers/indexedDB";
+import { kvProvider } from "./providers/kvProvider";
+import { getSetting } from "./settings";
 
 export const formatResponse = (data, message = null) => ({
   success: true,
@@ -12,18 +14,86 @@ export const formatError = (message, code = "UNKNOWN_ERROR") => ({
   error: { code, message },
 });
 
-const providers = {
+// Legacy providers
+const legacyProviders = {
   server: serverProvider,
   indexedDB: indexedDBProvider,
 };
 
+// New KV provider
+const newProviders = {
+  kv: kvProvider,
+};
+
+// Main data provider with support for both legacy and new API
 export default {
-  loadData: (provider, key, date) => providers[provider]?.loadData(key, date),
-  saveData: (provider, key, data, date) =>
-    providers[provider]?.saveData(key, data, date),
-  loadConfig: (provider, key) => providers[provider]?.loadConfig(key),
-  saveConfig: (provider, key, config) =>
-    providers[provider]?.saveConfig(key, config),
+  // Provider API methods
+  loadData: (provider, key, date) => {
+    if (legacyProviders[provider]) {
+      return legacyProviders[provider]?.loadData(key, date);
+    }
+
+    // If using new KV provider
+    if (provider === "kv-local") {
+      const classNumber = key.split("/").pop();
+      return newProviders.kv.local.loadData(classNumber, date);
+    } else if (provider === "kv-server") {
+      const classNumber = key.split("/").pop();
+      const serverUrl = getSetting("server.domain");
+      return newProviders.kv.server.loadData(serverUrl, classNumber, date);
+    }
+  },
+
+  saveData: (provider, key, data, date) => {
+    if (legacyProviders[provider]) {
+      return legacyProviders[provider]?.saveData(key, data, date);
+    }
+
+    // If using new KV provider
+    if (provider === "kv-local") {
+      const classNumber = key.split("/").pop();
+      return newProviders.kv.local.saveData(classNumber, data, date);
+    } else if (provider === "kv-server") {
+      const classNumber = key.split("/").pop();
+      const serverUrl = getSetting("server.domain");
+      return newProviders.kv.server.saveData(
+        serverUrl,
+        classNumber,
+        data,
+        date
+      );
+    }
+  },
+
+  loadConfig: (provider, key) => {
+    if (legacyProviders[provider]) {
+      return legacyProviders[provider]?.loadConfig(key);
+    }
+
+    // If using new KV provider
+    if (provider === "kv-local") {
+      const classNumber = key.split("/").pop();
+      return newProviders.kv.local.loadConfig(classNumber);
+    } else if (provider === "kv-server") {
+      const serverUrl = getSetting("server.domain");
+      return newProviders.kv.server.loadConfig(serverUrl);
+    }
+  },
+
+  saveConfig: (provider, key, config) => {
+    if (legacyProviders[provider]) {
+      return legacyProviders[provider]?.saveConfig(key, config);
+    }
+
+    // If using new KV provider
+    if (provider === "kv-local") {
+      const classNumber = key.split("/").pop();
+      return newProviders.kv.local.saveConfig(classNumber, config);
+    } else if (provider === "kv-server") {
+      const serverUrl = getSetting("server.domain");
+      return newProviders.kv.server.saveConfig(serverUrl, config);
+    }
+  },
 };
 
 export const ErrorCodes = {
diff --git a/src/utils/providers/kvProvider.js b/src/utils/providers/kvProvider.js
new file mode 100644
index 0000000..6b7d61a
--- /dev/null
+++ b/src/utils/providers/kvProvider.js
@@ -0,0 +1,250 @@
+import axios from '@/axios/axios';
+import { formatResponse, formatError } from '../dataProvider';
+import { openDB } from 'idb';
+import { getSetting } from '../settings';
+
+// Constants for key names
+const CONFIG_KEY = 'classworks-config';
+const DATA_KEY_PREFIX = 'classworks-data-';
+
+// Database initialization for local storage
+const DB_NAME = "ClassworksDB";
+const DB_VERSION = 2;
+
+// Helper function to get request headers with site key if available
+const getHeaders = () => {
+    const headers = { Accept: "application/json" };
+    const siteKey = getSetting("server.siteKey");
+
+    if (siteKey) {
+        headers['x-site-key'] = siteKey;
+    }
+
+    return headers;
+};
+
+// Get machine UUID from settings
+const getMachineId = () => {
+    return getSetting("device.uuid");
+};
+
+// Removed migrateToKvStorage function - now handled by the dedicated migration tool
+
+const initDB = async () => {
+    return openDB(DB_NAME, DB_VERSION, {
+        upgrade(db) {
+            // Create or update stores as needed
+            if (!db.objectStoreNames.contains("kv")) {
+                db.createObjectStore("kv");
+            }
+
+            // Add a system store for machine ID and other system settings
+            if (!db.objectStoreNames.contains("system")) {
+                db.createObjectStore("system");
+            }
+        },
+    });
+};
+
+// Format date as YYYYMMDD for keys
+const formatDateForKey = (date) => {
+    const d = new Date(date);
+    const year = d.getFullYear();
+    const month = String(d.getMonth() + 1).padStart(2, '0');
+    const day = String(d.getDate()).padStart(2, '0');
+    return `${year}${month}${day}`;
+};
+
+export const kvProvider = {
+    // Local storage provider
+    local: {
+        async loadData(classNumber, date) {
+            try {
+                if (!classNumber) {
+                    return formatError("请先设置班号", "CONFIG_ERROR");
+                }
+
+                const formattedDate = formatDateForKey(date);
+                const key = `${DATA_KEY_PREFIX}${formattedDate}`;
+
+                const db = await initDB();
+                const data = await db.get("kv", `${classNumber}/${key}`);
+
+                if (!data) {
+                    const today = new Date().toISOString().split("T")[0];
+                    if (date === today) {
+                        // Return default data for today
+                        return formatResponse({
+                            homework: {},
+                            attendance: {
+                                absent: [],
+                                late: []
+                            }
+                        });
+                    }
+                    return formatError("数据不存在", "NOT_FOUND");
+                }
+
+                return formatResponse(JSON.parse(data));
+            } catch (error) {
+                return formatError("读取本地数据失败：" + error);
+            }
+        },
+
+        async saveData(classNumber, data, date) {
+            try {
+                if (!classNumber) {
+                    return formatError("请先设置班号", "CONFIG_ERROR");
+                }
+
+                const formattedDate = formatDateForKey(date);
+                const key = `${DATA_KEY_PREFIX}${formattedDate}`;
+
+                const db = await initDB();
+                await db.put("kv", JSON.stringify(data), `${classNumber}/${key}`);
+                return formatResponse(null, "保存成功");
+            } catch (error) {
+                return formatError("保存本地数据失败：" + error);
+            }
+        },
+
+        async loadConfig(classNumber) {
+            try {
+                if (!classNumber) {
+                    return formatError("请先设置班号", "CONFIG_ERROR");
+                }
+
+                const db = await initDB();
+                const config = await db.get("kv", `${classNumber}/${CONFIG_KEY}`);
+
+                if (!config) {
+                    return formatResponse({
+                        studentList: [
+                            "Classworks可以管理学生列表",
+                            '你可以点击设置，在其中找到"学生列表"',
+                            "在添加学生处输入学生姓名，点击添加",
+                            "或者点击高级编辑，从Excel表格中复制数据并粘贴进来",
+                        ],
+                    });
+                }
+
+                return formatResponse(JSON.parse(config));
+            } catch (error) {
+                return formatError("读取本地配置失败：" + error);
+            }
+        },
+
+        async saveConfig(classNumber, config) {
+            try {
+                if (!classNumber) {
+                    return formatError("请先设置班号", "CONFIG_ERROR");
+                }
+
+                const db = await initDB();
+                await db.put("kv", JSON.stringify(config), `${classNumber}/${CONFIG_KEY}`);
+                return formatResponse(null, "保存成功");
+            } catch (error) {
+                return formatError("保存本地配置失败：" + error);
+            }
+        }
+    },
+
+    // Server storage provider
+    server: {
+        async loadData(serverUrl, classNumber, date) {
+            try {
+                const machineId = getMachineId();
+                const formattedDate = formatDateForKey(date);
+                const key = `${DATA_KEY_PREFIX}${formattedDate}`;
+
+                const res = await axios.get(`${serverUrl}/${machineId}/${key}`, {
+                    headers: getHeaders()
+                });
+
+                return formatResponse(res.data);
+            } catch (error) {
+                if (error.response?.status === 404) {
+                    const today = new Date().toISOString().split("T")[0];
+                    if (date === today) {
+                        // Return default data for today
+                        return formatResponse({
+                            homework: {},
+                            attendance: {
+                                absent: [],
+                                late: []
+                            }
+                        });
+                    }
+                    return formatError("数据不存在", "NOT_FOUND");
+                }
+
+                return formatError(
+                    error.response?.data?.message || "服务器连接失败",
+                    "NETWORK_ERROR"
+                );
+            }
+        },
+
+        async saveData(serverUrl, classNumber, data, date) {
+            try {
+                const machineId = getMachineId();
+                const formattedDate = formatDateForKey(date);
+                const key = `${DATA_KEY_PREFIX}${formattedDate}`;
+
+                await axios.post(`${serverUrl}/${machineId}/${key}`, data, {
+                    headers: getHeaders()
+                });
+                return formatResponse(null, "保存成功");
+            } catch (error) {
+                return formatError(
+                    error.response?.data?.message || "保存失败",
+                    "SAVE_ERROR"
+                );
+            }
+        },
+
+        async loadConfig(serverUrl) {
+            try {
+                const machineId = getMachineId();
+                const res = await axios.get(`${serverUrl}/${machineId}/${CONFIG_KEY}`, {
+                    headers: getHeaders()
+                });
+
+                return formatResponse(res.data);
+            } catch (error) {
+                if (error.response?.status === 404) {
+                    return formatResponse({
+                        studentList: [
+                            "Classworks可以管理学生列表",
+                            '你可以点击设置，在其中找到"学生列表"',
+                            "在添加学生处输入学生姓名，点击添加",
+                            "或者点击高级编辑，从Excel表格中复制数据并粘贴进来",
+                        ],
+                    });
+                }
+
+                return formatError(
+                    error.response?.data?.message || "服务器连接失败",
+                    "NETWORK_ERROR"
+                );
+            }
+        },
+
+        async saveConfig(serverUrl, config) {
+            try {
+                const machineId = getMachineId();
+                await axios.post(`${serverUrl}/${machineId}/${CONFIG_KEY}`, config, {
+                    headers: getHeaders()
+                });
+                return formatResponse(null, "保存成功");
+            } catch (error) {
+                return formatError(
+                    error.response?.data?.message || "保存失败",
+                    "SAVE_ERROR"
+                );
+            }
+        }
+    }
+};
+
+export { getMachineId };
\ No newline at end of file
diff --git a/src/utils/providers/server.js b/src/utils/providers/server.js
index c627272..445b89a 100644
--- a/src/utils/providers/server.js
+++ b/src/utils/providers/server.js
@@ -1,10 +1,25 @@
-import axios from 'axios';
+import axios from '@/axios/axios';
 import { formatResponse, formatError } from '../dataProvider';
+import { getSetting } from '../settings';
+
+// Helper function to get request headers with site key if available
+const getHeaders = () => {
+    const headers = { Accept: "application/json" };
+    const siteKey = getSetting("server.siteKey");
+
+    if (siteKey) {
+        headers['x-site-key'] = siteKey;
+    }
+
+    return headers;
+};
 
 export const serverProvider = {
     async loadData(key, date) {
         try {
-            const res = await axios.get(`${key}/homework?date=${date}`);
+            const res = await axios.get(`${key}/homework?date=${date}`, {
+                headers: getHeaders()
+            });
             if (res.data?.status === false) {
                 return formatError(res.data.msg || "获取数据失败", "SERVER_ERROR");
             }
@@ -21,7 +36,9 @@ export const serverProvider = {
         try {
             // 添加date参数到URL
             const url = date ? `${key}/homework?date=${date}` : `${key}/homework`;
-            await axios.post(url, data);
+            await axios.post(url, data, {
+                headers: getHeaders()
+            });
             return formatResponse(null, "保存成功");
         } catch (error) {
             return formatError(
@@ -33,7 +50,9 @@ export const serverProvider = {
 
     async loadConfig(key) {
         try {
-            const res = await axios.get(`${key}/config`);
+            const res = await axios.get(`${key}/config`, {
+                headers: getHeaders()
+            });
             if (res.data?.status === false) {
                 return formatError(res.data.msg || "获取配置失败", "SERVER_ERROR");
             }
@@ -48,7 +67,9 @@ export const serverProvider = {
 
     async saveConfig(key, config) {
         try {
-            const res = await axios.put(`${key}/config`, config);
+            const res = await axios.put(`${key}/config`, config, {
+                headers: getHeaders()
+            });
             if (res.data?.status === false) {
                 return formatError(res.data.msg || "保存失败", "SAVE_ERROR");
             }
diff --git a/src/utils/settings.js b/src/utils/settings.js
index 5724ec0..6b43aa4 100644
--- a/src/utils/settings.js
+++ b/src/utils/settings.js
@@ -36,14 +36,16 @@ async function requestPersistentStorage() {
  */
 async function initializeStorage() {
   const notificationGranted = await requestNotificationPermission();
-  if (notificationGranted && getSetting("storage.persistOnLoad")) {
+  if (notificationGranted && SettingsManager.getSetting("storage.persistOnLoad")) {
     const persisted = await requestPersistentStorage();
     console.log(`持久性存储状态: ${persisted ? "已启用" : "未启用"}`);
   }
 }
 
 // 在页面加载时初始化
-window.addEventListener("load", initializeStorage);
+if (typeof window !== 'undefined') {
+  window.addEventListener("load", initializeStorage);
+}
 
 /**
  * 配置项定义
@@ -60,11 +62,31 @@ window.addEventListener("load", initializeStorage);
 // 存储所有设置的localStorage键名
 const SETTINGS_STORAGE_KEY = "Classworks_settings";
 
+/**
+ * 生成UUID v4
+ * @returns {string} 生成的UUID字符串
+ */
+function generateUUID() {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+    const r = Math.random() * 16 | 0;
+    const v = c === 'x' ? r : (r & 0x3 | 0x8);
+    return v.toString(16);
+  });
+}
+
 /**
  * 所有配置项的定义
  * @type {Object.<string, SettingDefinition>}
  */
 const settingsDefinitions = {
+  // 设备标识
+  "device.uuid": {
+    type: "string",
+    default: generateUUID(),
+    description: "设备唯一标识符",
+    icon: "mdi-identifier",
+  },
+
   // 存储设置
   "storage.persistOnLoad": {
     type: "boolean",
@@ -151,10 +173,17 @@ const settingsDefinitions = {
     icon: "mdi-account-group",
     // 设置班级标识，用于区分不同班级的数据
   },
+  "server.siteKey": {
+    type: "string",
+    default: "",
+    description: "网站令牌",
+    icon: "mdi-key-chain",
+    // 用于后端验证请求的令牌，将作为请求头 x-site-key 发送
+  },
   "server.provider": {
     type: "string",
     default: "indexedDB",
-    validate: (value) => ["server", "indexedDB"].includes(value),
+    validate: (value) => ["server", "indexedDB", "kv-local", "kv-server"].includes(value),
     description: "数据提供者",
     icon: "mdi-database",
     // 选择数据存储方式：使用本地IndexedDB或远程服务器
@@ -328,274 +357,309 @@ const settingsDefinitions = {
   },
 };
 
-// 内存中缓存的设置值
-let settingsCache = null;
-
 /**
- * 从localStorage加载所有设置
- * @returns {Object} 所有设置的值
+ * 设置管理器单例类
  */
-function loadSettings() {
-  try {
-    const stored = localStorage.getItem(SETTINGS_STORAGE_KEY);
-    if (stored) {
-      settingsCache = JSON.parse(stored);
-    } else {
-      // 首次使用或迁移旧数据
-      settingsCache = migrateFromLegacy();
-    }
-  } catch (error) {
-    console.error("加载设置失败:", error);
-    settingsCache = {};
+class SettingsManagerClass {
+  constructor() {
+    this.settingsCache = null;
+    this.isInitialized = false;
   }
 
-  // 确保所有设置项都有值（使用默认值填充）
-  for (const [key, definition] of Object.entries(settingsDefinitions)) {
-    if (!(key in settingsCache)) {
-      settingsCache[key] = definition.default;
-    }
+  /**
+   * 初始化设置管理器
+   */
+  init() {
+    if (this.isInitialized) return;
+    this.loadSettings();
+    this.isInitialized = true;
   }
 
-  return settingsCache;
-}
-
-/**
- * 从旧版本的localStorage迁移数据
- */
-function migrateFromLegacy() {
-  const LEGACY_SETTINGS_KEY = "homeworkpage_settings";
-  const LEGACY_MESSAGE_KEY = "homeworkpage_messages";
-
-  // 尝试从旧版本的设置中迁移
-  const legacySettings = localStorage.getItem(LEGACY_SETTINGS_KEY);
-  if (legacySettings) {
+  /**
+   * 从localStorage加载所有设置
+   * @returns {Object} 所有设置的值
+   */
+  loadSettings() {
     try {
-      const settings = JSON.parse(legacySettings);
-      localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(settings));
-      // 可选：删除旧的设置
-      localStorage.removeItem(LEGACY_SETTINGS_KEY);
-      return settings;
+      const stored = typeof localStorage !== 'undefined' ? localStorage.getItem(SETTINGS_STORAGE_KEY) : null;
+      if (stored) {
+        this.settingsCache = JSON.parse(stored);
+      } else {
+        // 首次使用或迁移旧数据
+        this.settingsCache = this.migrateFromLegacy();
+      }
     } catch (error) {
-      console.error("迁移旧设置失败:", error);
+      console.error("加载设置失败:", error);
+      this.settingsCache = {};
     }
+
+    // 确保所有设置项都有值（使用默认值填充）
+    for (const [key, definition] of Object.entries(settingsDefinitions)) {
+      if (!(key in this.settingsCache)) {
+        this.settingsCache[key] = definition.default;
+      }
+    }
+
+    return this.settingsCache;
   }
-  // 尝试从旧版本的message中迁移
-  const legacyMessages = localStorage.getItem(LEGACY_MESSAGE_KEY);
-  if (legacyMessages) {
+
+  /**
+   * 从旧版本的localStorage迁移数据
+   */
+  migrateFromLegacy() {
+    if (typeof localStorage === 'undefined') return {};
+
+    const LEGACY_SETTINGS_KEY = "homeworkpage_settings";
+    const LEGACY_MESSAGE_KEY = "homeworkpage_messages";
+
+    // 尝试从旧版本的设置中迁移
+    const legacySettings = localStorage.getItem(LEGACY_SETTINGS_KEY);
+    if (legacySettings) {
+      try {
+        const settings = JSON.parse(legacySettings);
+        localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(settings));
+        // 可选：删除旧的设置
+        localStorage.removeItem(LEGACY_SETTINGS_KEY);
+        return settings;
+      } catch (error) {
+        console.error("迁移旧设置失败:", error);
+      }
+    }
+    // 尝试从旧版本的message中迁移
+    const legacyMessages = localStorage.getItem(LEGACY_MESSAGE_KEY);
+    if (legacyMessages) {
+      try {
+        const messages = JSON.parse(legacyMessages);
+        localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(messages));
+        // 可选：删除旧的message
+        localStorage.removeItem(LEGACY_MESSAGE_KEY);
+        return messages; // 返回迁移后的消息
+      } catch (error) {
+        console.error("迁移旧消息失败:", error);
+      }
+    }
+
+    // 如果没有旧设置或迁移失败，返回空对象
+    return {};
+  }
+
+  /**
+   * 保存所有设置到localStorage
+   */
+  saveSettings() {
+    if (typeof localStorage === 'undefined') return;
+
     try {
-      const messages = JSON.parse(legacyMessages);
-      localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(messages));
-      // 可选：删除旧的message
-      localStorage.removeItem(LEGACY_MESSAGE_KEY);
-      return messages; // 返回迁移后的消息
+      localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(this.settingsCache));
     } catch (error) {
-      console.error("迁移旧消息失败:", error);
+      console.error("保存设置失败:", error);
     }
   }
 
-  // 如果没有旧设置或迁移失败，返回空对象
-  return {};
-}
-
-/**
- * 保存所有设置到localStorage
- */
-function saveSettings() {
-  try {
-    localStorage.setItem(SETTINGS_STORAGE_KEY, JSON.stringify(settingsCache));
-  } catch (error) {
-    console.error("保存设置失败:", error);
-  }
-}
-
-/**
- * 获取设置项的值
- * @param {string} key - 设置项键名
- * @returns {any} 设置项的值
- */
-function getSetting(key) {
-  if (!settingsCache) {
-    loadSettings();
-  }
-
-  const definition = settingsDefinitions[key];
-  if (!definition) {
-    console.warn(`未定义的设置项: ${key}`);
-    return null;
-  }
-
-  // 确保开发者相关设置正确处理
-  if (definition.requireDeveloper) {
-    const devEnabled = settingsCache["developer.enabled"];
-    if (!devEnabled) {
-      return definition.default;
-    }
-  }
-
-  const value = settingsCache[key];
-  return value !== undefined ? value : definition.default;
-}
-
-// 修改 logSettingsChange 函数，优化检查逻辑
-function logSettingsChange(key, oldValue, newValue) {
-  // 确保设置已加载
-  if (!settingsCache) {
-    loadSettings();
-  }
-
-  const shouldLog =
-    settingsCache["developer.enabled"] &&
-    settingsCache["developer.showDebugConfig"];
-
-  if (shouldLog) {
-    console.log(`[Settings] ${key}:`, {
-      old: oldValue,
-      new: newValue,
-      time: new Date().toLocaleTimeString(),
-    });
-  }
-}
-
-/**
- * 设置配置项的值
- * @param {string} key - 设置项键名
- * @param {any} value - 要设置的值
- * @returns {boolean} 是否设置成功
- */
-function setSetting(key, value) {
-  const definition = settingsDefinitions[key];
-  if (!definition) {
-    console.warn(`未定义的设置项: ${key}`);
-    return false;
-  }
-
-  // 添加对开发者选项依赖的检查
-  if (definition.requireDeveloper && !settingsCache["developer.enabled"]) {
-    console.warn(`设置项 ${key} 需要启用开发者选项`);
-    return false;
-  }
-
-  try {
-    const oldValue = settingsCache[key];
-    // 类型转换
-    if (typeof value !== definition.type) {
-      value =
-        definition.type === "boolean"
-          ? Boolean(value)
-          : definition.type === "number"
-          ? Number(value)
-          : String(value);
+  /**
+   * 获取设置项的值
+   * @param {string} key - 设置项键名
+   * @returns {any} 设置项的值
+   */
+  getSetting(key) {
+    if (!this.isInitialized) {
+      this.init();
     }
 
-    // 验证
-    if (definition.validate && !definition.validate(value)) {
-      console.warn(`设置项 ${key} 的值无效`);
+    const definition = settingsDefinitions[key];
+    if (!definition) {
+      console.warn(`未定义的设置项: ${key}`);
+      return null;
+    }
+
+    // 确保开发者相关设置正确处理
+    if (definition.requireDeveloper) {
+      const devEnabled = this.settingsCache["developer.enabled"];
+      if (!devEnabled) {
+        return definition.default;
+      }
+    }
+
+    const value = this.settingsCache[key];
+    return value !== undefined ? value : definition.default;
+  }
+
+  /**
+   * 设置配置项的值
+   * @param {string} key - 设置项键名
+   * @param {any} value - 要设置的值
+   * @returns {boolean} 是否设置成功
+   */
+  setSetting(key, value) {
+    if (!this.isInitialized) {
+      this.init();
+    }
+
+    const definition = settingsDefinitions[key];
+    if (!definition) {
+      console.warn(`未定义的设置项: ${key}`);
       return false;
     }
 
-    if (!settingsCache) {
-      loadSettings();
+    // 添加对开发者选项依赖的检查
+    if (definition.requireDeveloper && !this.settingsCache["developer.enabled"]) {
+      console.warn(`设置项 ${key} 需要启用开发者选项`);
+      return false;
     }
 
-    settingsCache[key] = value;
-    saveSettings();
-    logSettingsChange(key, oldValue, value);
+    try {
+      const oldValue = this.settingsCache[key];
+      // 类型转换
+      if (typeof value !== definition.type) {
+        value =
+          definition.type === "boolean"
+            ? Boolean(value)
+            : definition.type === "number"
+            ? Number(value)
+            : String(value);
+      }
 
-    // 为了保持向后兼容，同时更新旧的localStorage键
-    const legacyKey = definition.legacyKey;
-    if (legacyKey) {
-      localStorage.setItem(legacyKey, value.toString());
+      // 验证
+      if (definition.validate && !definition.validate(value)) {
+        console.warn(`设置项 ${key} 的值无效`);
+        return false;
+      }
+
+      this.settingsCache[key] = value;
+      this.saveSettings();
+      this.logSettingsChange(key, oldValue, value);
+
+      // 为了保持向后兼容，同时更新旧的localStorage键
+      const legacyKey = definition.legacyKey;
+      if (legacyKey && typeof localStorage !== 'undefined') {
+        localStorage.setItem(legacyKey, value.toString());
+      }
+
+      return true;
+    } catch (error) {
+      console.error(`设置配置项 ${key} 失败:`, error);
+      return false;
+    }
+  }
+
+  /**
+   * 记录设置变更
+   */
+  logSettingsChange(key, oldValue, newValue) {
+    const shouldLog =
+      this.settingsCache["developer.enabled"] &&
+      this.settingsCache["developer.showDebugConfig"];
+
+    if (shouldLog) {
+      console.log(`[Settings] ${key}:`, {
+        old: oldValue,
+        new: newValue,
+        time: new Date().toLocaleTimeString(),
+      });
+    }
+  }
+
+  /**
+   * 重置指定设置项到默认值
+   * @param {string} key - 设置项键名
+   */
+  resetSetting(key) {
+    if (!this.isInitialized) {
+      this.init();
     }
 
-    return true;
-  } catch (error) {
-    console.error(`设置配置项 ${key} 失败:`, error);
-    return false;
-  }
-}
-
-/**
- * 重置指定设置项到默认值
- * @param {string} key - 设置项键名
- */
-function resetSetting(key) {
-  const definition = settingsDefinitions[key];
-  if (!definition) {
-    console.warn(`未定义的设置项: ${key}`);
-    return;
-  }
-
-  if (!settingsCache) {
-    loadSettings();
-  }
-
-  settingsCache[key] = definition.default;
-  saveSettings();
-}
-
-/**
- * 重置所有设置项到默认值
- */
-function resetAllSettings() {
-  settingsCache = {};
-  for (const [key, definition] of Object.entries(settingsDefinitions)) {
-    settingsCache[key] = definition.default;
-  }
-  saveSettings();
-}
-
-/**
- * 监听设置变化
- * @param {Function} callback - 当设置改变时调用的回调函数
- * @returns {Function} 取消监听的函数
- */
-function watchSettings(callback) {
-  const handler = (event) => {
-    if (event.key === SETTINGS_STORAGE_KEY) {
-      settingsCache = JSON.parse(event.newValue);
-      callback(settingsCache);
+    const definition = settingsDefinitions[key];
+    if (!definition) {
+      console.warn(`未定义的设置项: ${key}`);
+      return;
     }
-  };
 
-  window.addEventListener("storage", handler);
-  return () => window.removeEventListener("storage", handler);
-}
-
-// 初始化设置
-loadSettings();
-
-/**
- * 获取设置项的定义
- * @param {string} key - 设置项键名
- * @returns {SettingDefinition|null} 设置项的定义或null
- */
-function getSettingDefinition(key) {
-  return settingsDefinitions[key] || null;
-}
-
-/**
- * 将当前配置导出为简单的键值对对象
- * @returns {Object} 包含所有设置的键值对对象
- */
-function exportSettingsAsKeyValue() {
-  if (!settingsCache) {
-    loadSettings();
+    this.settingsCache[key] = definition.default;
+    this.saveSettings();
   }
-  
-  // 创建一个新对象，避免直接返回引用
-  const exportedSettings = {};
-  
-  // 遍历所有设置项
-  for (const key in settingsDefinitions) {
-    // 获取当前值（确保使用getSetting以应用所有规则，如开发者选项依赖）
-    exportedSettings[key] = getSetting(key);
+
+  /**
+   * 重置所有设置项到默认值
+   */
+  resetAllSettings() {
+    this.settingsCache = {};
+    for (const [key, definition] of Object.entries(settingsDefinitions)) {
+      this.settingsCache[key] = definition.default;
+    }
+    this.saveSettings();
+  }
+
+  /**
+   * 监听设置变化
+   * @param {Function} callback - 当设置改变时调用的回调函数
+   * @returns {Function} 取消监听的函数
+   */
+  watchSettings(callback) {
+    if (typeof window === 'undefined') return () => {};
+
+    const handler = (event) => {
+      if (event.key === SETTINGS_STORAGE_KEY) {
+        this.settingsCache = JSON.parse(event.newValue);
+        callback(this.settingsCache);
+      }
+    };
+
+    window.addEventListener("storage", handler);
+    return () => window.removeEventListener("storage", handler);
+  }
+
+  /**
+   * 获取设置项的定义
+   * @param {string} key - 设置项键名
+   * @returns {SettingDefinition|null} 设置项的定义或null
+   */
+  getSettingDefinition(key) {
+    return settingsDefinitions[key] || null;
+  }
+
+  /**
+   * 将当前配置导出为简单的键值对对象
+   * @returns {Object} 包含所有设置的键值对对象
+   */
+  exportSettingsAsKeyValue() {
+    if (!this.isInitialized) {
+      this.init();
+    }
+
+    // 创建一个新对象，避免直接返回引用
+    const exportedSettings = {};
+
+    // 遍历所有设置项
+    for (const key in settingsDefinitions) {
+      // 获取当前值（确保使用getSetting以应用所有规则，如开发者选项依赖）
+      exportedSettings[key] = this.getSetting(key);
+    }
+
+    return exportedSettings;
   }
-  
-  return exportedSettings;
 }
 
+// 创建单例实例
+const SettingsManager = new SettingsManagerClass();
+
+// 在服务器端和客户端都能正常工作的初始化
+if (typeof window !== 'undefined') {
+  SettingsManager.init();
+}
+
+// 为了向后兼容性，提供与原来相同的函数接口
+const getSetting = (key) => SettingsManager.getSetting(key);
+const setSetting = (key, value) => SettingsManager.setSetting(key, value);
+const resetSetting = (key) => SettingsManager.resetSetting(key);
+const resetAllSettings = () => SettingsManager.resetAllSettings();
+const watchSettings = (callback) => SettingsManager.watchSettings(callback);
+const getSettingDefinition = (key) => SettingsManager.getSettingDefinition(key);
+const exportSettingsAsKeyValue = () => SettingsManager.exportSettingsAsKeyValue();
+
+// 导出单例和直接方法
 export {
   settingsDefinitions,
+  SettingsManager,
   getSetting,
   setSetting,
   resetSetting,