Optimize: get error code after Websocket upgrade failed (#4114)

* Optimize: get error code after Websocket upgrade failed

* Update CHANGELOG-2.2.md

Author: sy-records

src/Client.php

@@ -11,6 +11,7 @@
  */
 namespace Hyperf\WebSocketClient;
 
+use Hyperf\HttpMessage\Server\Response;
 use Hyperf\WebSocketClient\Exception\ConnectException;
 use Psr\Http\Message\UriInterface;
 use Swoole\Coroutine;
@@ -50,8 +51,15 @@ public function __construct(UriInterface $uri)
 
         $ret = $this->client->upgrade($path);
         if (! $ret) {
-            $errCode = $this->client->errCode;
-            throw new ConnectException(sprintf('Websocket upgrade failed by [%s] [%s].', $errCode, swoole_strerror($errCode)));
+            if ($this->client->errCode !== 0) {
+                $errCode = $this->client->errCode;
+                $errMsg = $this->client->errMsg;
+            } else {
+                $errCode = $this->client->statusCode;
+                $errMsg = Response::getReasonPhraseByCode($errCode);
+            }
+
+            throw new ConnectException(sprintf('Websocket upgrade failed by [%s] [%s].', $errCode, $errMsg));
         }
     }