From adda69de16e3317f84a16754f842014309d4d96d Mon Sep 17 00:00:00 2001
From: Billy <641833868@qq.com>
Date: Mon, 27 Oct 2025 15:26:09 +0800
Subject: [PATCH] 1

---
 addons/shopro/library/ccblife/CcbPaymentService.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/addons/shopro/library/ccblife/CcbPaymentService.php b/addons/shopro/library/ccblife/CcbPaymentService.php
index 4fe48e3..49e0af5 100644
--- a/addons/shopro/library/ccblife/CcbPaymentService.php
+++ b/addons/shopro/library/ccblife/CcbPaymentService.php
@@ -477,7 +477,15 @@ class CcbPaymentService
 
             // 使用服务方公钥加密这30位十六进制字符串
             // CcbRSA::encrypt 会自动进行base64编码
-            return CcbRSA::encrypt($last30Chars, $servicePublicKey);
+            $encpub = CcbRSA::encrypt($last30Chars, $servicePublicKey);
+
+            // ⚠️ 关键修复：转换为URL-safe BASE64格式
+            // 根据文档和示例："若密文中带有"+"、"/"符号，说明少了BASE64这一步骤"
+            // 实际上需要将标准BASE64的 + 和 / 替换为 - 和 _
+            // 这样在URL传输时不会被误解析，也符合建行的格式要求
+            $encpub = str_replace(['+', '/'], ['-', '_'], $encpub);
+
+            return $encpub;
 
         } catch (\Exception $e) {
             Log::error('[建行支付] ENCPUB生成失败: ' . $e->getMessage());