diff --git a/src/Middlewares/GrpcLogger.php b/src/Middlewares/GrpcLogger.php
index 5e20c63..bb10eca 100644
--- a/src/Middlewares/GrpcLogger.php
+++ b/src/Middlewares/GrpcLogger.php
@@ -22,7 +22,8 @@ class GrpcLogger extends Interceptor
      */
     protected $logger;
 
-    public function __construct(LoggerInterface $logger) {
+    public function __construct(LoggerInterface $logger)
+    {
         $this->setLogger($logger);
     }
 
@@ -46,13 +47,12 @@ public function interceptUnaryUnary(
     private function responseLog($name, ?Message $argument, ?Message $response, $status, $startTime)
     {
         $t = (microtime(true) - $startTime) * 1000;
-        if ($this->logger) {
-            $this->writeLogInfo("[GRPC] CALL {$name} - Time: {$t}", [
-                'status' => "{$status->code}:$status->details",
-                'request' => $this->decodeMessage($argument),
-                'response' => $this->decodeMessage($response),
-            ]);
-        }
+
+        $this->writeLogInfo("[GRPC] CALL {$name} - Time: {$t}", [
+            'status' => "{$status->code}:$status->details",
+            'request' => $this->decodeMessage($argument),
+            'response' => $this->decodeMessage($response),
+        ]);
     }
 
     private function decodeMessage(?Message $message) : ?array
@@ -61,13 +61,13 @@ private function decodeMessage(?Message $message) : ?array
             return null;
         }
 
+        // 注意，php 的 serializeToJsonString 不支持 google.protobuf.Any 参数的自动解析为JSON，需手动转换
+        // 如果 message 参数中存在Any类型，此处会报错
         return json_decode($message->serializeToJsonString(), true);
     }
 
     protected function writeLogInfo($message, array $context = [])
     {
-        if ($this->logger) {
-            $this->logger->info($message, $context);
-        }
+        $this->logger->info($message, $context);
     }
 }
diff --git a/src/Middlewares/GrpcRetry.php b/src/Middlewares/GrpcRetry.php
index 2116205..a880da8 100644
--- a/src/Middlewares/GrpcRetry.php
+++ b/src/Middlewares/GrpcRetry.php
@@ -7,6 +7,7 @@
 use Grpc\UnaryCall;
 use Psr\Log\LoggerInterface;
 use Reatang\GrpcPHPAbstract\Call\ResponseCall;
+use Reatang\GrpcPHPAbstract\Utils\LoggerTrait;
 use const Grpc\STATUS_UNAVAILABLE;
 use const Grpc\STATUS_ABORTED;
 
@@ -17,6 +18,8 @@
  */
 class GrpcRetry extends Interceptor
 {
+    use LoggerTrait;
+
     /** @var int 最大重试次数 */
     protected $maxAttempts;
 
@@ -25,13 +28,6 @@ class GrpcRetry extends Interceptor
 
     protected $retryableStatusCodes = [];
 
-    /**
-     * 日志记录
-     *
-     * @var LoggerInterface
-     */
-    protected $logger;
-
     public function __construct(
         $maxAttempts = 3,
         $delay = 300,
@@ -84,16 +80,4 @@ public function interceptUnaryUnary(
 
         return new ResponseCall(null, $status);
     }
-
-    /**
-     * @param LoggerInterface $logger
-     *
-     * @return $this
-     */
-    public function setLogger(LoggerInterface $logger)
-    {
-        $this->logger = $logger;
-
-        return $this;
-    }
 }
diff --git a/src/Utils/LoggerTrait.php b/src/Utils/LoggerTrait.php
index d74f488..296b6e2 100644
--- a/src/Utils/LoggerTrait.php
+++ b/src/Utils/LoggerTrait.php
@@ -10,17 +10,20 @@ trait LoggerTrait
     protected $logger = null;
 
     /**
-     * @param LoggerInterface $logger
+     * @param LoggerInterface|null $logger
      *
-     * @return self
+     * @return $this
      */
-    public function setLogger(LoggerInterface $logger)
+    public function setLogger(?LoggerInterface $logger)
     {
         $this->logger = $logger;
 
         return $this;
     }
 
+    /**
+     * @return LoggerInterface|null
+     */
     protected function getLogger(): ?LoggerInterface
     {
         return $this->logger;