diff --git a/src/components/settings/StudentListCard.vue b/src/components/settings/StudentListCard.vue
index 1c6589f..32be2f6 100644
--- a/src/components/settings/StudentListCard.vue
+++ b/src/components/settings/StudentListCard.vue
@@ -190,7 +190,7 @@
             prepend-icon="mdi-content-save"
             size="large"
             :loading="loading"
-            :disabled="loading || !unsavedChanges"
+            :disabled="loading"
             @click="$emit('save')"
           >
             保存名单
@@ -201,7 +201,7 @@
             prepend-icon="mdi-refresh"
             size="large"
             :loading="loading"
-            :disabled="loading || !unsavedChanges"
+            :disabled="loading"
             @click="$emit('reload')"
           >
             重载名单
diff --git a/src/components/settings/cards/DisplaySettingsCard.vue b/src/components/settings/cards/DisplaySettingsCard.vue
new file mode 100644
index 0000000..caaf4d2
--- /dev/null
+++ b/src/components/settings/cards/DisplaySettingsCard.vue
@@ -0,0 +1,121 @@
+<template>
+  <settings-card
+    title="显示设置"
+    icon="mdi-monitor-dashboard"
+  >
+    <v-form v-model="isValid" @submit.prevent="save">
+      <v-list>
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-eye" class="mr-3" />
+          </template>
+          <v-list-item-title>空科目显示</v-list-item-title>
+          <v-list-item-subtitle>选择空科目的显示方式</v-list-item-subtitle>
+          <template #append>
+            <v-btn-toggle
+              v-model="localSettings.emptySubjectDisplay"
+              density="comfortable"
+              color="primary"
+            >
+              <v-btn value="button" :ripple="false">按钮</v-btn>
+              <v-btn value="card" :ripple="false">卡片</v-btn>
+            </v-btn-toggle>
+          </template>
+        </v-list-item>
+
+        <v-divider class="my-2" />
+
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-sort" class="mr-3" />
+          </template>
+          <v-list-item-title>动态排序</v-list-item-title>
+          <v-list-item-subtitle>根据科目动态排序</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              disabled
+              v-model="localSettings.dynamicSort"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <v-divider class="my-2" />
+
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-dice-multiple" class="mr-3" />
+          </template>
+          <v-list-item-title>随机点名按钮</v-list-item-title>
+          <v-list-item-subtitle>指向IslandCaller的链接</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.showRandomButton"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <div class="d-flex gap-2 mt-4">
+          <v-btn
+            color="primary"
+            type="submit"
+            :disabled="!hasChanges || !isValid"
+            prepend-icon="mdi-content-save"
+          >
+            保存更改
+          </v-btn>
+          <v-btn
+            variant="outlined"
+            @click="reset"
+            :disabled="!hasChanges"
+          >
+            重置
+          </v-btn>
+        </div>
+      </v-list>
+    </v-form>
+  </settings-card>
+</template>
+
+<script>
+import SettingsCard from '@/components/SettingsCard.vue';
+import { getSetting, setSetting } from '@/utils/settings';
+
+export default {
+  name: 'DisplaySettingsCard',
+  components: { SettingsCard },
+  data() {
+    const settings = {
+      emptySubjectDisplay: getSetting('display.emptySubjectDisplay'),
+      dynamicSort: getSetting('display.dynamicSort'),
+      showRandomButton: getSetting('display.showRandomButton')
+    };
+
+    return {
+      localSettings: { ...settings },
+      originalSettings: settings,
+      isValid: true
+    };
+  },
+  computed: {
+    hasChanges() {
+      return JSON.stringify(this.localSettings) !== JSON.stringify(this.originalSettings);
+    }
+  },
+  methods: {
+    save() {
+      Object.entries(this.localSettings).forEach(([key, value]) => {
+        setSetting(`display.${key}`, value);
+      });
+      this.originalSettings = { ...this.localSettings };
+      this.$emit('saved');
+    },
+    reset() {
+      this.localSettings = { ...this.originalSettings };
+    }
+  }
+};
+</script>
diff --git a/src/components/settings/cards/EditSettingsCard.vue b/src/components/settings/cards/EditSettingsCard.vue
new file mode 100644
index 0000000..448ec81
--- /dev/null
+++ b/src/components/settings/cards/EditSettingsCard.vue
@@ -0,0 +1,135 @@
+<template>
+  <settings-card
+    title="编辑设置"
+    icon="mdi-pencil-cog"
+  >
+    <v-form v-model="isValid" @submit.prevent="save">
+      <v-list>
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-content-save" class="mr-3" />
+          </template>
+          <v-list-item-title>自动保存</v-list-item-title>
+          <v-list-item-subtitle>在编辑完成后自动保存到服务器</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.autoSave"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <v-divider v-if="localSettings.autoSave" class="my-2" />
+
+        <v-list-item v-if="localSettings.autoSave">
+          <template #prepend>
+            <v-icon icon="mdi-calendar-lock" class="mr-3" />
+          </template>
+          <v-list-item-title>禁止自动保存非当天数据</v-list-item-title>
+          <v-list-item-subtitle>仅允许自动保存当天的数据，避免误修改历史记录</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.blockNonTodayAutoSave"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <v-divider class="my-2" />
+
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-calendar-alert" class="mr-3" />
+          </template>
+          <v-list-item-title>确认保存历史数据</v-list-item-title>
+          <v-list-item-subtitle>保存非当天数据时显示确认对话框</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.confirmNonTodaySave"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <v-divider class="my-2" />
+
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-refresh" class="mr-3" />
+          </template>
+          <v-list-item-title>编辑前刷新</v-list-item-title>
+          <v-list-item-subtitle>在打开编辑框前从服务器获取最新数据</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.refreshBeforeEdit"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <div class="d-flex gap-2 mt-4">
+          <v-btn
+            color="primary"
+            type="submit"
+            :disabled="!hasChanges || !isValid"
+            prepend-icon="mdi-content-save"
+          >
+            保存更改
+          </v-btn>
+          <v-btn
+            variant="outlined"
+            @click="reset"
+            :disabled="!hasChanges"
+          >
+            重置
+          </v-btn>
+        </div>
+      </v-list>
+    </v-form>
+  </settings-card>
+</template>
+
+<script>
+import SettingsCard from '@/components/SettingsCard.vue';
+import { getSetting, setSetting } from '@/utils/settings';
+
+export default {
+  name: 'EditSettingsCard',
+  components: { SettingsCard },
+  data() {
+    const settings = {
+      autoSave: getSetting('edit.autoSave'),
+      blockNonTodayAutoSave: getSetting('edit.blockNonTodayAutoSave'),
+      confirmNonTodaySave: getSetting('edit.confirmNonTodaySave'),
+      refreshBeforeEdit: getSetting('edit.refreshBeforeEdit')
+    };
+
+    return {
+      localSettings: { ...settings },
+      originalSettings: settings,
+      isValid: true
+    };
+  },
+  computed: {
+    hasChanges() {
+      return JSON.stringify(this.localSettings) !== JSON.stringify(this.originalSettings);
+    }
+  },
+  methods: {
+    save() {
+      Object.entries(this.localSettings).forEach(([key, value]) => {
+        setSetting(`edit.${key}`, value);
+      });
+      this.originalSettings = { ...this.localSettings };
+      this.$emit('saved');
+    },
+    reset() {
+      this.localSettings = { ...this.originalSettings };
+    }
+  }
+};
+</script>
diff --git a/src/components/settings/cards/RefreshSettingsCard.vue b/src/components/settings/cards/RefreshSettingsCard.vue
new file mode 100644
index 0000000..a10f516
--- /dev/null
+++ b/src/components/settings/cards/RefreshSettingsCard.vue
@@ -0,0 +1,102 @@
+<template>
+  <settings-card
+    title="刷新设置"
+    icon="mdi-refresh-circle"
+  >
+    <v-form v-model="isValid" @submit.prevent="save">
+      <v-list>
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-refresh" class="mr-3" />
+          </template>
+          <v-list-item-title>自动刷新</v-list-item-title>
+          <v-list-item-subtitle>在后台自动刷新数据</v-list-item-subtitle>
+          <template #append>
+            <v-switch
+              v-model="localSettings.auto"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <v-divider class="my-2" />
+
+        <v-list-item>
+          <template #prepend>
+            <v-icon icon="mdi-timer" class="mr-3" />
+          </template>
+          <v-list-item-title>刷新间隔</v-list-item-title>
+          <v-list-item-subtitle>设置自动刷新的时间间隔（分钟）</v-list-item-subtitle>
+          <template #append>
+            <v-text-field
+              v-model="localSettings.interval"
+              type="number"
+              min="1"
+              max="60"
+              density="comfortable"
+              hide-details
+            />
+          </template>
+        </v-list-item>
+
+        <div class="d-flex gap-2 mt-4">
+          <v-btn
+            color="primary"
+            type="submit"
+            :disabled="!hasChanges || !isValid"
+            prepend-icon="mdi-content-save"
+          >
+            保存更改
+          </v-btn>
+          <v-btn
+            variant="outlined"
+            @click="reset"
+            :disabled="!hasChanges"
+          >
+            重置
+          </v-btn>
+        </div>
+      </v-list>
+    </v-form>
+  </settings-card>
+</template>
+
+<script>
+import SettingsCard from '@/components/SettingsCard.vue';
+import { getSetting, setSetting } from '@/utils/settings';
+
+export default {
+  name: 'RefreshSettingsCard',
+  components: { SettingsCard },
+  data() {
+    const settings = {
+      auto: getSetting('refresh.auto'),
+      interval: getSetting('refresh.interval')
+    };
+
+    return {
+      localSettings: { ...settings },
+      originalSettings: settings,
+      isValid: true
+    };
+  },
+  computed: {
+    hasChanges() {
+      return JSON.stringify(this.localSettings) !== JSON.stringify(this.originalSettings);
+    }
+  },
+  methods: {
+    save() {
+      Object.entries(this.localSettings).forEach(([key, value]) => {
+        setSetting(`refresh.${key}`, value);
+      });
+      this.originalSettings = { ...this.localSettings };
+      this.$emit('saved');
+    },
+    reset() {
+      this.localSettings = { ...this.originalSettings };
+    }
+  }
+};
+</script>
diff --git a/src/components/settings/cards/ServerSettingsCard.vue b/src/components/settings/cards/ServerSettingsCard.vue
new file mode 100644
index 0000000..e2153b3
--- /dev/null
+++ b/src/components/settings/cards/ServerSettingsCard.vue
@@ -0,0 +1,95 @@
+<template>
+  <settings-card title="数据源设置" icon="mdi-database" :loading="loading">
+    <v-form v-model="isValid" @submit.prevent="save">
+      <v-select
+        v-model="localSettings.provider"
+        :items="dataProviders"
+        label="数据提供者"
+        class="mb-4"
+      />
+      <v-expand-transition>
+        <div v-if="localSettings.provider === 'server'">
+          <v-text-field
+            v-model="localSettings.domain"
+            label="服务器域名"
+            placeholder="例如: http://example.com"
+            prepend-inner-icon="mdi-web"
+          />
+        </div>
+      </v-expand-transition>
+
+      <v-text-field
+        v-model="localSettings.classNumber"
+        label="班号"
+        placeholder="例如: 1 或 A"
+        prepend-inner-icon="mdi-account-group"
+        persistent-hint
+      />
+
+      <div class="d-flex gap-2 mt-4">
+        <v-btn
+          color="primary"
+          type="submit"
+          :disabled="!hasChanges || !isValid"
+          prepend-icon="mdi-content-save"
+        >
+          保存更改
+        </v-btn>
+        <v-btn variant="outlined" @click="reset" :disabled="!hasChanges">
+          重置
+        </v-btn>
+      </div>
+    </v-form>
+  </settings-card>
+</template>
+
+<script>
+import SettingsCard from "@/components/SettingsCard.vue";
+import { getSetting, setSetting } from "@/utils/settings";
+
+export default {
+  name: "ServerSettingsCard",
+  components: { SettingsCard },
+  props: {
+    loading: Boolean,
+  },
+  data() {
+    const settings = {
+      provider: getSetting("server.provider"),
+      domain: getSetting("server.domain"),
+      classNumber: getSetting("server.classNumber"),
+    };
+
+    return {
+      localSettings: { ...settings },
+      originalSettings: settings,
+      isValid: true,
+      dataProviders: [
+        { title: "服务器", value: "server" },
+        { title: "本地数据库", value: "indexedDB" },
+      ],
+    };
+  },
+  computed: {
+    hasChanges() {
+      return (
+        JSON.stringify(this.localSettings) !==
+        JSON.stringify(this.originalSettings)
+      );
+    },
+  },
+  methods: {
+    save() {
+      Object.entries(this.localSettings).forEach(([key, value]) => {
+        setSetting(`server.${key}`, value);
+      });
+      this.originalSettings = { ...this.localSettings };
+      this.$emit("saved");
+      window.location.reload();
+    },
+    reset() {
+      this.localSettings = { ...this.originalSettings };
+    },
+  },
+};
+</script>
diff --git a/src/pages/index.vue b/src/pages/index.vue
index 93f7241..434c019 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -338,7 +338,7 @@ import "../styles/transitions.scss"; // 添加新的样式导入
 import { debounce, throttle } from "@/utils/debounce";
 
 export default {
-  name: "HomeworkBoard",
+  name: "Classworks作业板",
   components: {
     MessageLog,
   },
diff --git a/src/pages/settings.vue b/src/pages/settings.vue
index 4818af7..d12a8c6 100644
--- a/src/pages/settings.vue
+++ b/src/pages/settings.vue
@@ -13,223 +13,23 @@
 
     <v-container class="py-4">
       <v-row>
-        <!-- 数据源设置卡片 -->
         <v-col cols="12" md="6">
-          <settings-card
-            title="数据源设置"
-            icon="mdi-database"
+          <server-settings-card
             :loading="loading.server"
-          >
-            <v-select
-              v-model="settings.server.provider"
-              :items="dataProviders"
-              label="数据提供者"
-              class="mb-4"
-            />
-            <v-expand-transition>
-              <div v-if="settings.server.provider === 'server'">
-                <v-text-field
-                  v-model="settings.server.domain"
-                  label="服务器域名"
-                  placeholder="例如: http://example.com"
-                  prepend-inner-icon="mdi-web"
-                />
-              </div>
-            </v-expand-transition>
-
-            <v-text-field
-              v-model="settings.server.classNumber"
-              label="班号"
-              placeholder="例如: 1 或 A"
-              prepend-inner-icon="mdi-account-group"
-              :hint="settings.server.provider === 'localStorage' ? '使用本地存储时也需要设置班号' : ''"
-              persistent-hint
-            />
-          </settings-card>
+            @saved="onSettingsSaved"
+          />
         </v-col>
 
-        <!-- 编辑设置卡片 -->
         <v-col cols="12" md="6">
-          <settings-card
-            title="编辑设置"
-            icon="mdi-pencil-cog"
-          >
-            <v-list>
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-content-save" class="mr-3" />
-                </template>
-                <v-list-item-title>自动保存</v-list-item-title>
-                <v-list-item-subtitle>在编辑完成后自动保存到服务器</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.edit.autoSave"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-
-              <v-divider v-if="settings.edit.autoSave" class="my-2" />
-
-              <v-list-item v-if="settings.edit.autoSave">
-                <template #prepend>
-                  <v-icon icon="mdi-calendar-lock" class="mr-3" />
-                </template>
-                <v-list-item-title>禁止自动保存非当天数据</v-list-item-title>
-                <v-list-item-subtitle>仅允许自动保存当天的数据，避免误修改历史记录</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.edit.blockNonTodayAutoSave"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-
-              <v-divider class="my-2" />
-
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-calendar-alert" class="mr-3" />
-                </template>
-                <v-list-item-title>确认保存历史数据</v-list-item-title>
-                <v-list-item-subtitle>保存非当天数据时显示确认对话框</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.edit.confirmNonTodaySave"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item> <v-divider class="my-2" /><v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-refresh" class="mr-3" />
-                </template>
-                <v-list-item-title>编辑前刷新</v-list-item-title>
-                <v-list-item-subtitle>在打开编辑框前从服务器获取最新数据</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.edit.refreshBeforeEdit"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-            </v-list>
-          </settings-card>
+          <edit-settings-card @saved="onSettingsSaved" />
         </v-col>
 
-        <!-- 刷新设置卡片 -->
         <v-col cols="12" md="6">
-          <settings-card
-            title="刷新设置"
-            icon="mdi-refresh-circle"
-          >
-            <v-list>
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-refresh" class="mr-3" />
-                </template>
-                <v-list-item-title>自动刷新</v-list-item-title>
-                <v-list-item-subtitle>在后台自动刷新数据</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.refresh.auto"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-
-              <v-divider class="my-2" />
-
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-timer" class="mr-3" />
-                </template>
-                <v-list-item-title>刷新间隔</v-list-item-title>
-                <v-list-item-subtitle>设置自动刷新的时间间隔（分钟）</v-list-item-subtitle>
-                <template #append>
-                  <v-text-field
-                    v-model="settings.refresh.interval"
-                    type="number"
-                    min="1"
-                    max="60"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-            </v-list>
-          </settings-card>
+          <refresh-settings-card @saved="onSettingsSaved" />
         </v-col>
 
-        <!-- 显示设置卡片 -->
         <v-col cols="12" md="6">
-          <settings-card
-            title="显示设置"
-            icon="mdi-monitor-dashboard"
-          >
-            <v-list>
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-eye" class="mr-3" />
-                </template>
-                <v-list-item-title>空科目显示</v-list-item-title>
-                <v-list-item-subtitle>选择空科目的显示方式</v-list-item-subtitle>
-                <template #append>
-                  <v-btn-toggle
-                    v-model="settings.display.emptySubjectDisplay"
-                    density="comfortable"
-                    color="primary"
-                  >
-                    <v-btn value="button" :ripple="false">
-                      按钮
-                    </v-btn>
-                    <v-btn value="card" :ripple="false">
-                      卡片
-                    </v-btn>
-                  </v-btn-toggle>
-                </template>
-              </v-list-item>
-
-              <v-divider class="my-2" />
-
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-sort" class="mr-3" />
-                </template>
-                <v-list-item-title>动态排序</v-list-item-title>
-                <v-list-item-subtitle>根据科目动态排序</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    disabled
-                    v-model="settings.display.dynamicSort"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-
-              <v-divider class="my-2" />
-
-              <v-list-item>
-                <template #prepend>
-                  <v-icon icon="mdi-dice-multiple" class="mr-3" />
-                </template>
-                <v-list-item-title>随机点名按钮</v-list-item-title>
-                <v-list-item-subtitle>指向IslandCaller的链接</v-list-item-subtitle>
-                <template #append>
-                  <v-switch
-                    v-model="settings.display.showRandomButton"
-                    density="comfortable"
-                    hide-details
-                  />
-                </template>
-              </v-list-item>
-            </v-list>
-          </settings-card>
+          <display-settings-card @saved="onSettingsSaved" />
         </v-col>
 
         <!-- 开发者选项卡片 -->
@@ -335,6 +135,10 @@
 
 <script>
 import { useDisplay } from 'vuetify';
+import ServerSettingsCard from '@/components/settings/cards/ServerSettingsCard.vue';
+import EditSettingsCard from '@/components/settings/cards/EditSettingsCard.vue';
+import RefreshSettingsCard from '@/components/settings/cards/RefreshSettingsCard.vue';
+import DisplaySettingsCard from '@/components/settings/cards/DisplaySettingsCard.vue';
 import {
   getSetting,
   setSetting,
@@ -351,6 +155,10 @@ import dataProvider from '@/utils/dataProvider';
 export default {
   name: 'Settings',
   components: {
+    ServerSettingsCard,
+    EditSettingsCard,
+    RefreshSettingsCard,
+    DisplaySettingsCard,
     MessageLog,
     SettingsCard,
     StudentListCard,
@@ -730,6 +538,11 @@ export default {
         this.settings.font.size = size - step;
       }
       this.handleSettingsChange(this.settings);
+    },
+
+    onSettingsSaved() {
+      this.showMessage('设置已更新', '您的设置已成功保存');
+      // 如果需要，可以在这里重新加载相关数据
     }
   }
 }
diff --git a/src/utils/dataProvider.js b/src/utils/dataProvider.js
index 6d34790..efaa49a 100644
--- a/src/utils/dataProvider.js
+++ b/src/utils/dataProvider.js
@@ -1,271 +1,20 @@
-import axios from "axios";
-import { openDB } from "idb";
+import { serverProvider } from './providers/server';
+import { indexedDBProvider } from './providers/indexedDB';
 
-const DB_NAME = "HomeworkDB";
-const DB_VERSION = 1;
-
-const initDB = async () => {
-  return openDB(DB_NAME, DB_VERSION, {
-    upgrade(db) {
-      if (!db.objectStoreNames.contains("homework")) {
-        db.createObjectStore("homework");
-      }
-      if (!db.objectStoreNames.contains("config")) {
-        db.createObjectStore("config");
-      }
-    },
-  });
-};
-
-const formatResponse = (data, message = null) => ({
+export const formatResponse = (data, message = null) => ({
   success: true,
   data,
   message,
 });
 
-const formatError = (message, code = "UNKNOWN_ERROR") => ({
+export const formatError = (message, code = "UNKNOWN_ERROR") => ({
   success: false,
   error: { code, message },
 });
 
 const providers = {
-  localStorage: {
-    async loadData(key, date) {
-      try {
-        // 检查是否设置了班号
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        // 使用班号作为本地存储的前缀
-        const storageKey = `homework_${classNumber}_${date}`;
-        const rawData = localStorage.getItem(storageKey);
-
-        if (!rawData) {
-          // 如果是今天的数据且没有找到，返回空结构而不是null
-          const today = new Date().toISOString().split("T")[0];
-          if (date === today) {
-            return formatResponse({
-              homework: {},
-              attendance: { absent: [], late: [] },
-            });
-          }
-          return formatError("数据不存在", "NOT_FOUND");
-        }
-
-        return formatResponse(JSON.parse(rawData));
-      } catch (error) {
-        return formatError("读取本地数据失败：" + error);
-      }
-    },
-
-    async saveData(key, data, date) {
-      try {
-        // 检查是否设置了班号
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        // 使用班号作为本地存储的前缀
-        const storageKey = `homework_${classNumber}_${date}`; // 使用传入的date参数
-        localStorage.setItem(storageKey, JSON.stringify(data));
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError("保存本地数据失败:" + error);
-      }
-    },
-
-    async loadConfig(key) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const storageKey = `config_${classNumber}`;
-        const rawData = localStorage.getItem(storageKey);
-
-        if (!rawData) {
-          return formatResponse({
-            studentList: [],
-            displayOptions: {},
-          });
-        }
-
-        return formatResponse(JSON.parse(rawData));
-      } catch (error) {
-        return formatError("读取本地配置失败:" + error);
-      }
-    },
-
-    async saveConfig(key, config) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const storageKey = `config_${classNumber}`;
-        localStorage.setItem(storageKey, JSON.stringify(config));
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError("保存本地配置失败:" + error);
-      }
-    },
-  },
-
-  server: {
-    async loadData(key, date) {
-      try {
-        const res = await axios.get(`${key}/homework?date=${date}`);
-        if (res.data?.status === false) {
-          return formatError(res.data.msg || "获取数据失败", "SERVER_ERROR");
-        }
-        return formatResponse(res.data);
-      } catch (error) {
-        return formatError(
-          error.response?.data?.message || "服务器连接失败",
-          "NETWORK_ERROR"
-        );
-      }
-    },
-
-    async saveData(key, data, date) {
-      try {
-        // 添加date参数到URL
-        const url = date ? `${key}/homework?date=${date}` : `${key}/homework`;
-        await axios.post(url, data);
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError(
-          error.response?.data?.message || "保存失败",
-          "SAVE_ERROR"
-        );
-      }
-    },
-
-    async loadConfig(key) {
-      try {
-        const res = await axios.get(`${key}/config`);
-        if (res.data?.status === false) {
-          return formatError(res.data.msg || "获取配置失败", "SERVER_ERROR");
-        }
-        return formatResponse(res.data);
-      } catch (error) {
-        return formatError(
-          error.response?.data?.message || "服务器连接失败",
-          "NETWORK_ERROR"
-        );
-      }
-    },
-
-    async saveConfig(key, config) {
-      try {
-        const res = await axios.put(`${key}/config`, config);
-        if (res.data?.status === false) {
-          return formatError(res.data.msg || "保存失败", "SAVE_ERROR");
-        }
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError(
-          error.response?.data?.message || "保存失败",
-          "SAVE_ERROR"
-        );
-      }
-    },
-  },
-
-  indexedDB: {
-    async loadData(key, date) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const db = await initDB();
-        const storageKey = `homework_${classNumber}_${date}`;
-        const data = await db.get("homework", storageKey);
-
-        if (!data) {
-          const today = new Date().toISOString().split("T")[0];
-          if (date === today) {
-            return formatResponse({
-              homework: {},
-              attendance: { absent: [], late: [] },
-            });
-          }
-          return formatError("数据不存在", "NOT_FOUND");
-        }
-
-        // 从字符串解析数据
-        return formatResponse(JSON.parse(data));
-      } catch (error) {
-        return formatError("读取IndexedDB数据失败：" + error);
-      }
-    },
-
-    async saveData(key, data, date) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const db = await initDB();
-        const storageKey = `homework_${classNumber}_${date}`; // 使用传入的date参数
-        // 将数据序列化为字符串存储
-        await db.put("homework", JSON.stringify(data), storageKey);
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError("保存IndexedDB数据失败：" + error);
-      }
-    },
-
-    async loadConfig(key) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const db = await initDB();
-        const storageKey = `config_${classNumber}`;
-        const config = await db.get("config", storageKey);
-
-        if (!config) {
-          return formatResponse({
-            studentList: [],
-            displayOptions: {},
-          });
-        }
-
-        // 从字符串解析配置
-        return formatResponse(JSON.parse(config));
-      } catch (error) {
-        return formatError("读取IndexedDB配置失败：" + error);
-      }
-    },
-
-    async saveConfig(key, config) {
-      try {
-        const classNumber = key.split("/").pop();
-        if (!classNumber) {
-          return formatError("请先设置班号", "CONFIG_ERROR");
-        }
-
-        const db = await initDB();
-        const storageKey = `config_${classNumber}`;
-        // 将配置序列化为字符串存储
-        await db.put("config", JSON.stringify(config), storageKey);
-        return formatResponse(null, "保存成功");
-      } catch (error) {
-        return formatError("保存IndexedDB配置失败：" + error);
-      }
-    },
-  },
+  server: serverProvider,
+  indexedDB: indexedDBProvider,
 };
 
 export default {
diff --git a/src/utils/db.js b/src/utils/db.js
deleted file mode 100644
index 2a27c53..0000000
--- a/src/utils/db.js
+++ /dev/null
@@ -1,104 +0,0 @@
-const DB_NAME = 'homeworkboard';
-const DB_VERSION = 1;
-const LOG_STORE = 'message_logs';
-
-class LogDB {
-  constructor() {
-    this.db = null;
-    this.ready = this.initDB();
-  }
-
-  async initDB() {
-    try {
-      this.db = await new Promise((resolve, reject) => {
-        const request = indexedDB.open(DB_NAME, DB_VERSION);
-
-        request.onerror = () => reject(request.error);
-        request.onsuccess = () => resolve(request.result);
-        request.onupgradeneeded = (event) => {
-          const db = event.target.result;
-          if (!db.objectStoreNames.contains(LOG_STORE)) {
-            const store = db.createObjectStore(LOG_STORE, {
-              keyPath: 'id'
-            });
-            // 只保留时间和类型索引
-            store.createIndex('timestamp', 'timestamp');
-            store.createIndex('type', 'type');
-          }
-        };
-      });
-      return true;
-    } catch (error) {
-      console.error('初始化日志数据库失败:', error);
-      return false;
-    }
-  }
-
-  async ensureDB() {
-    if (!this.db) {
-      await this.ready;
-    }
-    if (!this.db) {
-      throw new Error('数据库未初始化');
-    }
-  }
-
-  async addLog(message) {
-    await this.ensureDB();
-
-    return new Promise((resolve, reject) => {
-      const transaction = this.db.transaction([LOG_STORE], 'readwrite');
-      const store = transaction.objectStore(LOG_STORE);
-
-      const request = store.add(message);
-
-      transaction.oncomplete = () => resolve(request.result);
-      transaction.onerror = () => reject(transaction.error);
-    });
-  }
-
-  async getLogs(limit = 20) {
-    await this.ensureDB();
-
-    return new Promise((resolve, reject) => {
-      const transaction = this.db.transaction([LOG_STORE], 'readonly');
-      const store = transaction.objectStore(LOG_STORE);
-      const index = store.index('timestamp');
-
-      const request = index.getAll(null, limit);
-
-      request.onsuccess = () => resolve(request.result.reverse());
-      request.onerror = () => reject(request.error);
-    });
-  }
-
-  async deleteLog(messageId) {
-    await this.ensureDB();
-
-    return new Promise((resolve, reject) => {
-      const transaction = this.db.transaction([LOG_STORE], 'readwrite');
-      const store = transaction.objectStore(LOG_STORE);
-
-      const request = store.delete(messageId);
-
-      transaction.oncomplete = () => resolve(true);
-      transaction.onerror = () => reject(transaction.error);
-    });
-  }
-
-  async clearLogs() {
-    await this.ensureDB();
-
-    return new Promise((resolve, reject) => {
-      const transaction = this.db.transaction([LOG_STORE], 'readwrite');
-      const store = transaction.objectStore(LOG_STORE);
-
-      const request = store.clear();
-
-      transaction.oncomplete = () => resolve(true);
-      transaction.onerror = () => reject(transaction.error);
-    });
-  }
-}
-
-export default new LogDB();
diff --git a/src/utils/message.js b/src/utils/message.js
index 51ca44a..391e26d 100644
--- a/src/utils/message.js
+++ b/src/utils/message.js
@@ -1,6 +1,26 @@
-import logDB from './db';
 import { getSetting } from './settings';
 
+class LogDB {
+  constructor() {
+    this.logs = [];
+  }
+
+  async addLog(message) {
+    this.logs.push(message);
+    // 只保留最近100条消息
+    if (this.logs.length > 100) {
+      this.logs.shift();
+    }
+    return true;
+  }
+
+  async getLogs(limit = 20) {
+    return this.logs.slice(-limit).reverse();
+  }
+}
+
+const logDB = new LogDB();
+
 const messages = [];
 let snackbarCallback = null;
 let logCallback = null;
diff --git a/src/utils/providers/indexedDB.js b/src/utils/providers/indexedDB.js
new file mode 100644
index 0000000..be1572d
--- /dev/null
+++ b/src/utils/providers/indexedDB.js
@@ -0,0 +1,104 @@
+import { openDB } from 'idb';
+import { formatResponse, formatError } from '../dataProvider';
+
+const DB_NAME = "HomeworkDB";
+const DB_VERSION = 1;
+
+const initDB = async () => {
+    return openDB(DB_NAME, DB_VERSION, {
+        upgrade(db) {
+            if (!db.objectStoreNames.contains("homework")) {
+                db.createObjectStore("homework");
+            }
+            if (!db.objectStoreNames.contains("config")) {
+                db.createObjectStore("config");
+            }
+        },
+    });
+};
+
+export const indexedDBProvider = {
+    async loadData(key, date) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const db = await initDB();
+            const storageKey = `homework_${classNumber}_${date}`;
+            const data = await db.get("homework", storageKey);
+
+            if (!data) {
+                const today = new Date().toISOString().split("T")[0];
+                if (date === 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IndexedDB数据失败：" + error);
+        }
+    },
+
+    async saveData(key, data, date) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const db = await initDB();
+            const storageKey = `homework_${classNumber}_${date}`;
+            await db.put("homework", JSON.stringify(data), storageKey);
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError("保存IndexedDB数据失败：" + error);
+        }
+    },
+
+    async loadConfig(key) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const db = await initDB();
+            const storageKey = `config_${classNumber}`;
+            const config = await db.get("config", storageKey);
+
+            if (!config) {
+                return formatResponse({
+                    studentList: [],
+                    displayOptions: {},
+                });
+            }
+
+            return formatResponse(JSON.parse(config));
+        } catch (error) {
+            return formatError("读取IndexedDB配置失败：" + error);
+        }
+    },
+
+    async saveConfig(key, config) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const db = await initDB();
+            const storageKey = `config_${classNumber}`;
+            await db.put("config", JSON.stringify(config), storageKey);
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError("保存IndexedDB配置失败：" + error);
+        }
+    }
+};
diff --git a/src/utils/providers/localStorage.js b/src/utils/providers/localStorage.js
new file mode 100644
index 0000000..c2a731f
--- /dev/null
+++ b/src/utils/providers/localStorage.js
@@ -0,0 +1,83 @@
+import { formatResponse, formatError } from '../dataProvider';
+
+export const localStorageProvider = {
+    async loadData(key, date) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const storageKey = `homework_${classNumber}_${date}`;
+            const rawData = localStorage.getItem(storageKey);
+
+            if (!rawData) {
+                const today = new Date().toISOString().split("T")[0];
+                if (date === today) {
+                    return formatResponse({
+                        homework: {},
+                        attendance: { absent: [], late: [] },
+                    });
+                }
+                return formatError("数据不存在", "NOT_FOUND");
+            }
+
+            return formatResponse(JSON.parse(rawData));
+        } catch (error) {
+            return formatError("读取本地数据失败：" + error);
+        }
+    },
+
+    async saveData(key, data, date) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const storageKey = `homework_${classNumber}_${date}`; // 使用传入的date参数
+            localStorage.setItem(storageKey, JSON.stringify(data));
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError("保存本地数据失败:" + error);
+        }
+    },
+
+    async loadConfig(key) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const storageKey = `config_${classNumber}`;
+            const rawData = localStorage.getItem(storageKey);
+
+            if (!rawData) {
+                return formatResponse({
+                    studentList: [],
+                    displayOptions: {},
+                });
+            }
+
+            return formatResponse(JSON.parse(rawData));
+        } catch (error) {
+            return formatError("读取本地配置失败:" + error);
+        }
+    },
+
+    async saveConfig(key, config) {
+        try {
+            const classNumber = key.split("/").pop();
+            if (!classNumber) {
+                return formatError("请先设置班号", "CONFIG_ERROR");
+            }
+
+            const storageKey = `config_${classNumber}`;
+            localStorage.setItem(storageKey, JSON.stringify(config));
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError("保存本地配置失败:" + error);
+        }
+    }
+};
diff --git a/src/utils/providers/server.js b/src/utils/providers/server.js
new file mode 100644
index 0000000..c627272
--- /dev/null
+++ b/src/utils/providers/server.js
@@ -0,0 +1,63 @@
+import axios from 'axios';
+import { formatResponse, formatError } from '../dataProvider';
+
+export const serverProvider = {
+    async loadData(key, date) {
+        try {
+            const res = await axios.get(`${key}/homework?date=${date}`);
+            if (res.data?.status === false) {
+                return formatError(res.data.msg || "获取数据失败", "SERVER_ERROR");
+            }
+            return formatResponse(res.data);
+        } catch (error) {
+            return formatError(
+                error.response?.data?.message || "服务器连接失败",
+                "NETWORK_ERROR"
+            );
+        }
+    },
+
+    async saveData(key, data, date) {
+        try {
+            // 添加date参数到URL
+            const url = date ? `${key}/homework?date=${date}` : `${key}/homework`;
+            await axios.post(url, data);
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError(
+                error.response?.data?.message || "保存失败",
+                "SAVE_ERROR"
+            );
+        }
+    },
+
+    async loadConfig(key) {
+        try {
+            const res = await axios.get(`${key}/config`);
+            if (res.data?.status === false) {
+                return formatError(res.data.msg || "获取配置失败", "SERVER_ERROR");
+            }
+            return formatResponse(res.data);
+        } catch (error) {
+            return formatError(
+                error.response?.data?.message || "服务器连接失败",
+                "NETWORK_ERROR"
+            );
+        }
+    },
+
+    async saveConfig(key, config) {
+        try {
+            const res = await axios.put(`${key}/config`, config);
+            if (res.data?.status === false) {
+                return formatError(res.data.msg || "保存失败", "SAVE_ERROR");
+            }
+            return formatResponse(null, "保存成功");
+        } catch (error) {
+            return formatError(
+                error.response?.data?.message || "保存失败",
+                "SAVE_ERROR"
+            );
+        }
+    }
+};
diff --git a/src/utils/settings.js b/src/utils/settings.js
index 5557a18..a2606e4 100644
--- a/src/utils/settings.js
+++ b/src/utils/settings.js
@@ -90,7 +90,7 @@ const settingsDefinitions = {
     type: "string",
     default: "indexedDB",
     validate: (value) =>
-      ["server", "localStorage", "indexedDB"].includes(value),
+      ["server", "indexedDB"].includes(value),
     description: "数据提供者，用于决定数据存储方式",
   },