diff --git a/.idea/HDK-Core.iml b/.idea/HDK-Core.iml
index 9c2851a..02cf85b 100644
--- a/.idea/HDK-Core.iml
+++ b/.idea/HDK-Core.iml
@@ -30,7 +30,6 @@
       <excludeFolder url="file://$MODULE_DIR$/vendor/composer" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/fig/http-message-util" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/lmc/http-constants" />
-      <excludeFolder url="file://$MODULE_DIR$/vendor/psr/cache" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/psr/http-server-handler" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/psr/event-dispatcher" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/psr/http-server-middleware" />
@@ -110,7 +109,6 @@
       <excludeFolder url="file://$MODULE_DIR$/vendor/theseer/tokenizer" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/doctrine/lexer" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/doctrine/inflector" />
-      <excludeFolder url="file://$MODULE_DIR$/vendor/doctrine/annotations" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/doctrine/instantiator" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/ergebnis/http-method" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/firebase/php-jwt" />
@@ -158,6 +156,8 @@
       <excludeFolder url="file://$MODULE_DIR$/vendor/hyperf/stringable" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/hyperf/support" />
       <excludeFolder url="file://$MODULE_DIR$/vendor/cooper/hyperf-pest" />
+      <excludeFolder url="file://$MODULE_DIR$/vendor/psr/clock" />
+      <excludeFolder url="file://$MODULE_DIR$/vendor/symfony/polyfill-php83" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/.idea/php.xml b/.idea/php.xml
index f1fe920..557e11b 100644
--- a/.idea/php.xml
+++ b/.idea/php.xml
@@ -46,7 +46,6 @@
       <path value="$PROJECT_DIR$/vendor/composer" />
       <path value="$PROJECT_DIR$/vendor/fig/http-message-util" />
       <path value="$PROJECT_DIR$/vendor/lmc/http-constants" />
-      <path value="$PROJECT_DIR$/vendor/psr/cache" />
       <path value="$PROJECT_DIR$/vendor/psr/http-server-handler" />
       <path value="$PROJECT_DIR$/vendor/psr/event-dispatcher" />
       <path value="$PROJECT_DIR$/vendor/psr/http-server-middleware" />
@@ -130,7 +129,6 @@
       <path value="$PROJECT_DIR$/vendor/theseer/tokenizer" />
       <path value="$PROJECT_DIR$/vendor/doctrine/lexer" />
       <path value="$PROJECT_DIR$/vendor/doctrine/inflector" />
-      <path value="$PROJECT_DIR$/vendor/doctrine/annotations" />
       <path value="$PROJECT_DIR$/vendor/doctrine/instantiator" />
       <path value="$PROJECT_DIR$/vendor/ergebnis/http-method" />
       <path value="$PROJECT_DIR$/vendor/firebase/php-jwt" />
@@ -176,6 +174,8 @@
       <path value="$PROJECT_DIR$/vendor/hyperf/support" />
       <path value="$PROJECT_DIR$/vendor/ralouphie/getallheaders" />
       <path value="$PROJECT_DIR$/vendor/cooper/hyperf-pest" />
+      <path value="$PROJECT_DIR$/vendor/psr/clock" />
+      <path value="$PROJECT_DIR$/vendor/symfony/polyfill-php83" />
     </include_path>
   </component>
   <component name="PhpProjectSharedConfiguration" php_language_level="8.1" />
diff --git a/src/I18n/Enum/Languages.php b/src/I18n/Enum/Languages.php
new file mode 100644
index 0000000..4181389
--- /dev/null
+++ b/src/I18n/Enum/Languages.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * Languages.php@Core
+ *
+ * @author 李东云 <Dongyun.Li@LuxCreo.Ai>
+ * Powered by PhpStorm
+ * Created on 2023/9/26
+ */
+
+namespace Singularity\HDK\Core\I18n\Enum;
+
+use function Hyperf\Config\config;
+
+enum Languages: string
+{
+    case ZH_CN = 'zh_CN';
+
+    case EN = 'en';
+
+    public static function getLanguage(string $language): Languages
+    {
+        return match ($language) {
+            'en', 'en_us', 'en-us', 'en-uk', 'en_uk' => self::EN,
+            'zh', 'zh_cn', 'zh-cn' => self::ZH_CN,
+            default => self::from(config('translation.locale')),
+        };
+    }
+}
diff --git a/src/Middleware/InternationalizationMiddleware.php b/src/Middleware/InternationalizationMiddleware.php
index 45388b6..5faafe2 100644
--- a/src/Middleware/InternationalizationMiddleware.php
+++ b/src/Middleware/InternationalizationMiddleware.php
@@ -12,10 +12,9 @@ use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Server\MiddlewareInterface;
 use Psr\Http\Server\RequestHandlerInterface;
+use Singularity\HDK\Core\I18n\Enum\Languages;
 use Symfony\Component\HttpFoundation\Request;
 
-use function Hyperf\Config\config;
-
 /**
  * Singularity\HDK\Utils\Middleware\InternationalizationMiddleware@HDK
  *
@@ -41,12 +40,8 @@ class InternationalizationMiddleware implements MiddlewareInterface
 
         $language = $req->getPreferredLanguage();
         if (!empty($language)) {
-            $language = match (strtolower($language)) {
-                'en', 'en_us', 'en-us', 'en-uk', 'en_uk' => 'en',
-                'zh', 'zh_cn', 'zh-cn' => 'zh_CN',
-                default => config('translation.locale'),
-            };
-            $this->translator->setLocale($language);
+            $language = Languages::getLanguage($language);
+            $this->translator->setLocale($language->value);
         }
         $response = Context::get(ResponseInterface::class);
         $response = $response->withAddedHeader(
diff --git a/tests/Unit/RequestServiceTest.php b/tests/Unit/RequestServiceTest.php
new file mode 100644
index 0000000..1186bd1
--- /dev/null
+++ b/tests/Unit/RequestServiceTest.php
@@ -0,0 +1,36 @@
+<?php
+
+/**
+ * RequestServiceTest.php@Core
+ *
+ * @author 李东云 <Dongyun.Li@LuxCreo.Ai>
+ * Powered by PhpStorm
+ * Created on 2023/9/20
+ */
+
+namespace Singularity\HDK\Test\Core\Unit;
+use Singularity\HDK\Core\Http\RequestService;
+use Singularity\HDK\Core\Http\RequestServiceFactory;
+
+class RequestServiceTest
+{
+    private RequestService $service;
+
+    public function __construct()
+    {
+        $this->service = RequestServiceFactory::make();
+    }
+
+    public function getInstance(): RequestService
+    {
+        return $this->service;
+    }
+}
+
+test('Http 请求服务可以正常使用', function () {
+    /** @var RequestServiceTest $class */
+    $class = \Hyperf\Support\make(RequestServiceTest::class);
+    $response = $class->getInstance()->requestGet('https://baidu.com/');
+    $content = $response->getBody()->getContents();
+    expect($content)->toBe('');
+})->only();