From f6d9e8ba4d22a4b1aa9b12d2f6d9e26ab15ac273 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Fri, 28 Nov 2025 11:20:51 +0800
Subject: [PATCH] =?UTF-8?q?:art:=20#3738=20=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=8DV3=E6=96=B0?=
 =?UTF-8?q?=E5=95=86=E6=88=B7=E5=AE=8C=E5=85=A8=E5=85=AC=E9=92=A5=E6=A8=A1?=
 =?UTF-8?q?=E5=BC=8F=E4=B8=8BpublicKey=E4=B8=BA=E7=A9=BA=E7=9A=84=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/github/binarywang/wxpay/config/WxPayConfig.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
index ba62a8a50..f4a1c3d00 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/config/WxPayConfig.java
@@ -377,6 +377,9 @@ public class WxPayConfig {
       Verifier certificatesVerifier;
       if (this.fullPublicKeyModel) {
         // 使用完全公钥模式时，只加载公钥相关配置，避免下载平台证书使灰度切换无法达到100%覆盖
+        if (publicKey == null) {
+          throw new WxPayException("完全公钥模式下，请确保公钥配置（publicKeyPath/publicKeyString/publicKeyContent）及publicKeyId已设置");
+        }
         certificatesVerifier = VerifierBuilder.buildPublicCertVerifier(this.publicKeyId, publicKey);
       } else {
         certificatesVerifier = VerifierBuilder.build(