diff --git a/app/Http/Admin/Controllers/CourseController.php b/app/Http/Admin/Controllers/CourseController.php
index f1555451..587e3e89 100644
--- a/app/Http/Admin/Controllers/CourseController.php
+++ b/app/Http/Admin/Controllers/CourseController.php
@@ -21,7 +21,7 @@ class CourseController extends Controller
             ['type' => CategoryModel::TYPE_COURSE]
         );
 
-        return $this->response->redirect($location);
+        $this->response->redirect($location);
     }
 
     /**
diff --git a/app/Http/Admin/Controllers/HelpController.php b/app/Http/Admin/Controllers/HelpController.php
index 950c1934..791003a7 100644
--- a/app/Http/Admin/Controllers/HelpController.php
+++ b/app/Http/Admin/Controllers/HelpController.php
@@ -21,7 +21,7 @@ class HelpController extends Controller
             ['type' => CategoryModel::TYPE_HELP]
         );
 
-        return $this->response->redirect($location);
+        $this->response->redirect($location);
     }
 
     /**
diff --git a/app/Http/Admin/Controllers/SessionController.php b/app/Http/Admin/Controllers/SessionController.php
index 3c67806f..13fb2e66 100644
--- a/app/Http/Admin/Controllers/SessionController.php
+++ b/app/Http/Admin/Controllers/SessionController.php
@@ -3,7 +3,6 @@
 namespace App\Http\Admin\Controllers;
 
 use App\Http\Admin\Services\Session as SessionService;
-use App\Http\Admin\Services\Setting as SettingService;
 use App\Library\AppInfo as AppInfo;
 use App\Traits\Auth as AuthTrait;
 use App\Traits\Response as ResponseTrait;
@@ -30,12 +29,15 @@ class SessionController extends \Phalcon\Mvc\Controller
             $this->response->redirect(['for' => 'admin.index']);
         }
 
+        $sessionService = new SessionService();
+
+        $captcha = $sessionService->getCaptchaSettings();
+
         if ($this->request->isPost()) {
 
             $this->checkHttpReferer();
-            $this->checkCsrfToken();
 
-            $sessionService = new SessionService();
+            $this->checkCsrfToken();
 
             $sessionService->login();
 
@@ -46,10 +48,6 @@ class SessionController extends \Phalcon\Mvc\Controller
 
         $appInfo = new AppInfo();
 
-        $settingService = new SettingService();
-
-        $captcha = $settingService->getSettings('captcha');
-
         $this->view->pick('public/login');
         $this->view->setVar('app_info', $appInfo);
         $this->view->setVar('captcha', $captcha);
diff --git a/app/Http/Admin/Controllers/SettingController.php b/app/Http/Admin/Controllers/SettingController.php
index 820b0ac0..24c70aa3 100644
--- a/app/Http/Admin/Controllers/SettingController.php
+++ b/app/Http/Admin/Controllers/SettingController.php
@@ -23,7 +23,7 @@ class SettingController extends Controller
 
             $data = $this->request->getPost();
 
-            $settingService->updateSectionSettings($section, $data);
+            $settingService->updateSettings($section, $data);
 
             return $this->jsonSuccess(['msg' => '更新配置成功']);
 
@@ -154,7 +154,7 @@ class SettingController extends Controller
 
             $data = $this->request->getPost();
 
-            $settingService->updateSectionSettings($section, $data);
+            $settingService->updateSettings($section, $data);
 
             return $this->jsonSuccess(['msg' => '更新配置成功']);
 
@@ -206,7 +206,7 @@ class SettingController extends Controller
 
             $data = $this->request->getPost();
 
-            $settingService->updateSectionSettings($section, $data);
+            $settingService->updateSettings($section, $data);
 
             return $this->jsonSuccess(['msg' => '更新配置成功']);
 
@@ -231,7 +231,7 @@ class SettingController extends Controller
 
             $data = $this->request->getPost();
 
-            $settingService->updateSectionSettings($section, $data);
+            $settingService->updateSettings($section, $data);
 
             $content = [
                 'location' => $this->request->getHTTPReferer(),
@@ -284,7 +284,7 @@ class SettingController extends Controller
 
             $data = $this->request->getPost();
 
-            $settingService->updateSectionSettings($section, $data);
+            $settingService->updateSettings($section, $data);
 
             return $this->jsonSuccess(['msg' => '更新配置成功']);
 
diff --git a/app/Http/Admin/Controllers/TestController.php b/app/Http/Admin/Controllers/TestController.php
index ec650dc8..fb398d11 100644
--- a/app/Http/Admin/Controllers/TestController.php
+++ b/app/Http/Admin/Controllers/TestController.php
@@ -146,7 +146,7 @@ class TestController extends Controller
 
             $settingService = new SettingService();
 
-            $settingService->updateSectionSettings('captcha', ['enabled' => 1]);
+            $settingService->updateSettings('captcha', ['enabled' => 1]);
 
             return $this->jsonSuccess(['msg' => '后台验证成功']);
 
diff --git a/app/Http/Admin/Controllers/UserController.php b/app/Http/Admin/Controllers/UserController.php
index a768e4f6..e90039d3 100644
--- a/app/Http/Admin/Controllers/UserController.php
+++ b/app/Http/Admin/Controllers/UserController.php
@@ -55,7 +55,7 @@ class UserController extends Controller
         $adminRole = $this->request->getPost('admin_role', 'int', 0);
 
         if ($adminRole == RoleModel::ROLE_ROOT) {
-            return $this->response->redirect(['action' => 'list']);
+            $this->response->redirect(['action' => 'list']);
         }
 
         $userService = new UserService();
@@ -84,7 +84,7 @@ class UserController extends Controller
         $roles = $userService->getRoles();
 
         if ($user->admin_role == RoleModel::ROLE_ROOT) {
-            return $this->response->redirect(['action' => 'list']);
+            $this->response->redirect(['action' => 'list']);
         }
 
         $this->view->setVar('user', $user);
@@ -100,7 +100,7 @@ class UserController extends Controller
         $adminRole = $this->request->getPost('admin_role', 'int', 0);
 
         if ($adminRole == RoleModel::ROLE_ROOT) {
-            return $this->response->redirect(['action' => 'list']);
+            $this->response->redirect(['action' => 'list']);
         }
 
         $type = $this->request->getPost('type', 'string', 'user');
diff --git a/app/Http/Admin/Services/Session.php b/app/Http/Admin/Services/Session.php
index 9ce79803..f0485075 100644
--- a/app/Http/Admin/Services/Session.php
+++ b/app/Http/Admin/Services/Session.php
@@ -2,7 +2,8 @@
 
 namespace App\Http\Admin\Services;
 
-use App\Services\Auth as AuthService;
+use App\Repos\Setting as SettingRepo;
+use App\Services\Auth\Admin as AdminAuth;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Captcha as CaptchaValidator;
 
@@ -10,7 +11,7 @@ class Session extends Service
 {
 
     /**
-     * @var AuthService
+     * @var AdminAuth
      */
     protected $auth;
 
@@ -33,7 +34,7 @@ class Session extends Service
 
         $user = $accountValidator->checkAdminLogin($post['account'], $post['password']);
 
-        $captchaSettings = $this->getSettings('captcha');
+        $captchaSettings = $this->getCaptchaSettings();
 
         /**
          * 验证码是一次性的，放到最后检查，减少第三方调用
@@ -53,4 +54,21 @@ class Session extends Service
         $this->auth->clearAuthInfo();
     }
 
+    public function getCaptchaSettings()
+    {
+        $settingsRepo = new SettingRepo();
+
+        $items = $settingsRepo->findBySection('captcha');
+
+        $result = [];
+
+        if ($items->count() > 0) {
+            foreach ($items as $item) {
+                $result[$item->item_key] = $item->item_value;
+            }
+        }
+
+        return $result;
+    }
+
 }
diff --git a/app/Http/Admin/Services/Setting.php b/app/Http/Admin/Services/Setting.php
index 586b4b66..f2b60ed7 100644
--- a/app/Http/Admin/Services/Setting.php
+++ b/app/Http/Admin/Services/Setting.php
@@ -73,7 +73,7 @@ class Setting extends Service
         return $result;
     }
 
-    public function updateSectionSettings($section, $settings)
+    public function updateSettings($section, $settings)
     {
         $settingsRepo = new SettingRepo();
 
@@ -98,12 +98,12 @@ class Setting extends Service
             $settings['domain'] = str_replace($protocol, '', $settings['domain']);
         }
 
-        $this->updateSectionSettings($section, $settings);
+        $this->updateSettings($section, $settings);
     }
 
     public function updateVodSettings($section, $settings)
     {
-        $this->updateSectionSettings($section, $settings);
+        $this->updateSettings($section, $settings);
     }
 
     public function updateLiveSettings($section, $settings)
@@ -116,14 +116,14 @@ class Setting extends Service
             }
         }
 
-        $this->updateSectionSettings($section, $settings);
+        $this->updateSettings($section, $settings);
     }
 
     public function updateSmsSettings($section, $settings)
     {
         $settings['template'] = kg_json_encode($settings['template']);
 
-        $this->updateSectionSettings($section, $settings);
+        $this->updateSettings($section, $settings);
     }
 
     public function updateVipSettings($items)
diff --git a/app/Http/Home/Controllers/AccountController.php b/app/Http/Home/Controllers/AccountController.php
index 92969579..a0a22076 100644
--- a/app/Http/Home/Controllers/AccountController.php
+++ b/app/Http/Home/Controllers/AccountController.php
@@ -21,7 +21,7 @@ class AccountController extends Controller
     public function registerAction()
     {
         if ($this->authUser->id > 0) {
-            return $this->response->redirect('/');
+            $this->response->redirect('/');
         }
 
         $service = new AccountService();
diff --git a/app/Http/Home/Controllers/ChapterController.php b/app/Http/Home/Controllers/ChapterController.php
index 1db71e31..7e2b3212 100644
--- a/app/Http/Home/Controllers/ChapterController.php
+++ b/app/Http/Home/Controllers/ChapterController.php
@@ -28,7 +28,7 @@ class ChapterController extends Controller
         $owned = $chapter['me']['owned'] ?? false;
 
         if (!$owned) {
-            return $this->response->redirect([
+            $this->response->redirect([
                 'for' => 'home.course.show',
                 'id' => $chapter['course']['id'],
             ]);
diff --git a/app/Http/Home/Controllers/ImController.php b/app/Http/Home/Controllers/ImController.php
index 9de0c1e9..a42f4066 100644
--- a/app/Http/Home/Controllers/ImController.php
+++ b/app/Http/Home/Controllers/ImController.php
@@ -19,7 +19,7 @@ class ImController extends Controller
         parent::initialize();
 
         if ($this->authUser->id == 0) {
-            return $this->response->redirect(['for' => 'home.account.login']);
+            $this->response->redirect(['for' => 'home.account.login']);
         }
     }
 
diff --git a/app/Http/Home/Controllers/SearchController.php b/app/Http/Home/Controllers/SearchController.php
index 5e900c6d..66c249fa 100644
--- a/app/Http/Home/Controllers/SearchController.php
+++ b/app/Http/Home/Controllers/SearchController.php
@@ -24,7 +24,7 @@ class SearchController extends Controller
         $type = $this->request->get('type', ['trim', 'string'], 'course');
 
         if (empty($query)) {
-            return $this->response->redirect(['for' => 'home.course.list']);
+            $this->response->redirect(['for' => 'home.course.list']);
         }
 
         $this->seo->prependTitle(['搜索', $query]);
diff --git a/app/Http/Home/Controllers/TeacherController.php b/app/Http/Home/Controllers/TeacherController.php
index a6f2f2ce..c520f70c 100644
--- a/app/Http/Home/Controllers/TeacherController.php
+++ b/app/Http/Home/Controllers/TeacherController.php
@@ -39,7 +39,7 @@ class TeacherController extends Controller
      */
     public function showAction($id)
     {
-        return $this->dispatcher->forward([
+        $this->dispatcher->forward([
             'controller' => 'user',
             'action' => 'show',
             'params' => ['id' => $id],
diff --git a/app/Http/Home/Controllers/UserConsoleController.php b/app/Http/Home/Controllers/UserConsoleController.php
index c7e3a897..dd814a93 100644
--- a/app/Http/Home/Controllers/UserConsoleController.php
+++ b/app/Http/Home/Controllers/UserConsoleController.php
@@ -38,7 +38,7 @@ class UserConsoleController extends Controller
      */
     public function indexAction()
     {
-        return $this->dispatcher->forward(['action' => 'courses']);
+        $this->dispatcher->forward(['action' => 'courses']);
     }
 
     /**