diff --git a/src/Services/Sp/Assertion.php b/src/Services/Sp/Assertion.php
index c99845b..e548a83 100644
--- a/src/Services/Sp/Assertion.php
+++ b/src/Services/Sp/Assertion.php
@@ -45,12 +45,12 @@ use function Hyperf\Config\config;
 class Assertion
 {
     public function __construct(
-        private Base $base,
-        private RequestInterface $request,
-        private ResponseInterface $response,
-        private AuthenticationInterface $authentication,
-        private Redis $redis,
-        private StdoutLoggerInterface $stdoutLogger
+        private readonly Base $base,
+        private readonly RequestInterface $request,
+        private readonly ResponseInterface $response,
+        private readonly AuthenticationInterface $authentication,
+        private readonly Redis $redis,
+        private readonly StdoutLoggerInterface $stdoutLogger
     ) {
     }
 
diff --git a/src/Services/Sp/Sso.php b/src/Services/Sp/Sso.php
index f22a446..c50ad66 100644
--- a/src/Services/Sp/Sso.php
+++ b/src/Services/Sp/Sso.php
@@ -12,16 +12,16 @@ declare(strict_types=1);
 namespace Singularity\HyperfSaml\Services\Sp;
 
 use Hyperf\Codec\Json;
-use Singularity\HDK\Core\Constants\CommonErrorCode;
-use Singularity\HDK\Core\Exceptions\Forbidden;
-use Swoole\Exception;
 use Hyperf\Contract\StdoutLoggerInterface;
-use Hyperf\Di\Annotation\Inject;
 use Hyperf\HttpServer\Contract\RequestInterface;
 use Hyperf\HttpServer\Contract\ResponseInterface;
 use Hyperf\Redis\Redis;
 use Psr\Http\Message\ResponseInterface as PsrResponseInterface;
+use RedisException;
+use Singularity\HDK\Core\Constants\CommonErrorCode;
+use Singularity\HDK\Core\Exceptions\Forbidden;
 use Singularity\HyperfSaml\Services\Base;
+use Swoole\Exception;
 use Teapot\StatusCode\RFC\RFC7231;
 
 use function Hyperf\Config\config;
@@ -42,11 +42,11 @@ class Sso
     private string $issuer;
 
     public function __construct(
-        private Base $base,
-        private RequestInterface $request,
-        private ResponseInterface $response,
-        private Redis $redis,
-        private StdoutLoggerInterface $stdoutLogger
+        private readonly Base $base,
+        private readonly RequestInterface $request,
+        private readonly ResponseInterface $response,
+        private readonly Redis $redis,
+        private readonly StdoutLoggerInterface $stdoutLogger
     ) {
         $this->idpId = config('saml.server.idp_id');
         $this->idpAssertionUrl = config('saml.server.idp_assertion_url');
@@ -58,7 +58,7 @@ class Sso
     /**
      * 自动重定向获取用户登录状态
      *
-     * @return \Psr\Http\Message\ResponseInterface
+     * @return PsrResponseInterface
      */
     public function redirectSsoStatus(): PsrResponseInterface
     {
@@ -73,7 +73,7 @@ class Sso
     /**
      * 自动重定向到单点登录
      *
-     * @return \Psr\Http\Message\ResponseInterface
+     * @return PsrResponseInterface
      */
     public function redirectSso(): PsrResponseInterface
     {
@@ -99,8 +99,8 @@ class Sso
      * @param $token
      *
      * @return void
-     * @throws \Singularity\HDK\Utils\Exceptions\Forbidden
-     * @throws \RedisException
+     * @throws Forbidden
+     * @throws RedisException
      * @throws \Exception
      */
     public function checkMultiDeviceOnline($uid, $token): void
@@ -112,7 +112,7 @@ class Sso
             return;
         }
         $redis_prefix = config('common.redis.prefix');
-        $key = "{$redis_prefix}user:token_map:{$uid}";
+        $key = "{$redis_prefix}user:token_map:$uid";
         $type = $this->redis->type($key);
 
         try {