From 189c09f71ac824a842dde45eace6c6a33a245eb8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mr=C2=B7x?= <as2252258@163.com>
Date: Tue, 23 Mar 2021 18:29:03 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E5=90=8D?=
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---
 Rpc/Service.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Rpc/Service.php b/Rpc/Service.php
index f70830c5..8a642a1d 100644
--- a/Rpc/Service.php
+++ b/Rpc/Service.php
@@ -94,11 +94,12 @@ class Service extends Component
 	 */
 	public static function replace(Request $request, array $service): Request
 	{
-		if (!is_array($body = $request->params->getBodyAndClear())) {
+		$body = $request->params->getBodyAndClear();
+		if (is_string($body) && is_null($body = Json::decode($body))) {
 			throw new Exception('Protocol format error.');
 		}
 		if (!isset($body['cmd'])) {
-			throw new Exception('Protocol format error.');
+			throw new Exception('Unknown system cmd.');
 		}
 		$request->params->setPosts($body);