From 5decfcb917b9562fea49be35c728768a082d6fe6 Mon Sep 17 00:00:00 2001
From: raven <52941626+raven1997s@users.noreply.github.com>
Date: Mon, 3 Mar 2025 15:40:52 +0800
Subject: [PATCH] =?UTF-8?q?:art:=20=20#3505=E3=80=90=E5=BE=AE=E4=BF=A1?=
 =?UTF-8?q?=E6=94=AF=E4=BB=98=E3=80=91=E4=BF=AE=E5=A4=8D=E5=BE=AE=E4=BF=A1?=
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---
 .../binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
index 1fa2f8dc8..16fa7a799 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/BaseWxPayServiceImpl.java
@@ -323,12 +323,13 @@ public abstract class BaseWxPayServiceImpl implements WxPayService {
       log.debug("微信支付异步通知请求参数：{}", xmlData);
       WxPayOrderNotifyResult result = WxPayOrderNotifyResult.fromXML(xmlData);
       if (signType == null) {
+        String configKey = this.getConfigKey(result.getMchId(), result.getAppid());
         if (result.getSignType() != null) {
           // 如果解析的通知对象中signType有值，则使用它进行验签
           signType = result.getSignType();
-        } else if (configMap.get(result.getMchId()).getSignType() != null) {
+        } else if (configMap.get(configKey).getSignType() != null) {
           // 如果配置中signType有值，则使用它进行验签
-          signType = configMap.get(result.getMchId()).getSignType();
+          signType = configMap.get(configKey).getSignType();
           this.switchover(result.getMchId(), result.getAppid());
         }
       }