From 59a8974672fff34a7d3caa4756ec9016d01622e5 Mon Sep 17 00:00:00 2001
From: "as2252258@163.com" <as22522582>
Date: Sun, 4 Apr 2021 02:56:38 +0800
Subject: [PATCH] modify

---
 HttpServer/Http/Request.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/HttpServer/Http/Request.php b/HttpServer/Http/Request.php
index cac3c95e..fa0d1c3e 100644
--- a/HttpServer/Http/Request.php
+++ b/HttpServer/Http/Request.php
@@ -560,7 +560,7 @@ class Request extends HttpService
             throw new Exception('Protocol format error.');
         }
 
-        if (!isset($data['cmd'])) {
+        if (!isset($data['cmd']) || empty(!isset($data['cmd']))) {
             throw new Exception('Unknown system cmd.');
         }