diff --git a/spug_api/apps/config/views.py b/spug_api/apps/config/views.py
index 2947a8e..9f39a55 100644
--- a/spug_api/apps/config/views.py
+++ b/spug_api/apps/config/views.py
@@ -135,6 +135,9 @@ class ConfigView(View):
             form.updated_by = request.user
             envs = form.pop('envs')
             for env_id in envs:
+                cf = Config.objects.filter(o_id=form.o_id, type=form.type, env_id=env_id, key=form.key).first()
+                if cf:
+                    raise Exception(f'{cf.env.name} 中已存在该Key')
                 Config.objects.create(env_id=env_id, **form)
                 ConfigHistory.objects.create(action='1', env_id=env_id, **form)
         return json_response(error=error)
diff --git a/spug_web/src/libs/functools.js b/spug_web/src/libs/functools.js
index 51adf1b..191c710 100644
--- a/spug_web/src/libs/functools.js
+++ b/spug_web/src/libs/functools.js
@@ -15,7 +15,11 @@ export function updatePermissions() {
   X_TOKEN = localStorage.getItem('token');
   Permission.isReady = true;
   Permission.isSuper = localStorage.getItem('is_supper') === 'true';
-  Permission.permissions = JSON.parse(localStorage.getItem('permissions') || '[]');
+  try {
+    Permission.permissions = JSON.parse(localStorage.getItem('permissions') || '[]');
+  } catch (e) {
+
+  }
 }
 
 // 前端页面的权限判断(仅作为前端功能展示的控制，具体权限控制应在后端实现)
diff --git a/spug_web/src/pages/config/setting/Form.js b/spug_web/src/pages/config/setting/Form.js
index f7fce97..d262848 100644
--- a/spug_web/src/pages/config/setting/Form.js
+++ b/spug_web/src/pages/config/setting/Form.js
@@ -76,7 +76,8 @@ export default observer(function () {
             label="类型"
             name="is_public"
             valuePropName="checked"
-            initialValue={store.record.is_public === undefined || store.record.is_public}>
+            initialValue={store.record.is_public === undefined || store.record.is_public}
+            tooltip={<a target="_blank" rel="noopener noreferrer" href="https://spug.cc/docs/conf-app">什么是公共/私有配置？</a>}>
             <Switch checkedChildren="公共" unCheckedChildren="私有"/>
           </Form.Item>
         )}