alter:优化

 <?php
 
 return [
-    'base_uri'        => 'https://open.singlewindow.gz.cn',
     'record_sn'       => '',
     'secret_key'      => '',
     'company_cert_sn' => '',
     'sender_sn'       => '',
     'receiver_sn'     => '',
     'client'          => [
-        'timeout' => 30
-    ]
+        'base_uri' => '',
+        'timeout'  => 30,
+        'verify'   => false
+    ],
+    'signature'       => ''
 ];

@@ -29,27 +29,18 @@ class Client implements ClientInterface
      */
     protected $config = [];
 
-    protected function __construct(RequestInterface $request)
-    {
-        $this->guzzleHttp = new GuzzleHttp([
-            'base_uri' => Arr::get($this->config, 'base_uri'),
-            'verify'   => false
-        ]);
-        $this->request    = $request;
-        $this->config     = config('gz-cbec');
-    }
-
     /**
-     * @param RequestInterface $request
+     * Client constructor.
      *
-     * @return ClientInterface
+     * @param RequestInterface $request
      */
-    protected static function make(RequestInterface $request): ClientInterface
+    protected function __construct(RequestInterface $request)
     {
-        return new static($request);
+        $this->request    = $request;
+        $this->config     = config('gz-cbec');
+        $this->guzzleHttp = new GuzzleHttp((array)Arr::get($this->config, 'client'));
     }
 
-
     /**
      * @return ResponseInterface
      * @throws Exception
@@ -77,13 +68,12 @@ class Client implements ClientInterface
      * @param RequestInterface $request
      *
      * @return array
+     * @throws Exception
      */
     public static function request(RequestInterface $request): array
     {
-        $client = self::make($request);
-        /**
-         * @var ResponseInterface $response
-         */
+        $client = new static($request);
+
         $response = $client->send();
 
         $content = $response->getBody()->getContents();

@@ -4,7 +4,6 @@ namespace Lackoxygen\GzCbec\Request;
 
 use Carbon\Carbon;
 use Illuminate\Support\Arr;
-use Illuminate\Support\Collection;
 use Lackoxygen\GzCbec\Constant\XML;
 use Lackoxygen\GzCbec\Contract\RequestInterface;
 use Lackoxygen\GzCbec\Contract\XMLInterface;
@@ -12,7 +11,6 @@ use Lackoxygen\GzCbec\Exception\Exception;
 use Lackoxygen\GzCbec\Request\Head\Head;
 use Lackoxygen\GzCbec\Request\Packet\GzReportTransfer;
 use Lackoxygen\GzCbec\Request\Report\Node\Receiver;
-use Lackoxygen\GzCbec\Utils\RSA;
 use Lackoxygen\GzCbec\Utils\Signature;
 
 class Packet
@@ -46,7 +44,7 @@ class Packet
     public function getContent(): string
     {
         try {
-            $head = new Head();
+            $head = new Head;
             $head->setMessageId($this->request->getGuid());
             $head->setMessageType($this->request->getMessageType());
             $head->setSender($this->config['sender_sn']);