From cb2eeaf94b20300678dcd7a0771ad647f2968d29 Mon Sep 17 00:00:00 2001
From: xy <455640711@qq.com>
Date: Wed, 14 Oct 2026 16:42:18 +0800
Subject: [PATCH] =?UTF-8?q?fix(pay):=20=E4=BC=81=E4=B8=9A=E4=BB=98?=
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---
 .../wxpay/service/impl/EntPayServiceImpl.java | 26 +++++++++++--------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EntPayServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EntPayServiceImpl.java
index db464936c7..0adc7b1d4a 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EntPayServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EntPayServiceImpl.java
@@ -89,17 +89,21 @@ public String getPublicKey() throws WxPayException {
   @Override
   public EntPayBankResult payBank(EntPayBankRequest request) throws WxPayException {
     File publicKeyFile = this.buildPublicKeyFile();
-    request.setEncBankNo(this.encryptRSA(publicKeyFile, request.getEncBankNo()));
-    request.setEncTrueName(this.encryptRSA(publicKeyFile, request.getEncTrueName()));
-    publicKeyFile.deleteOnExit();
-
-    request.checkAndSign(this.payService.getConfig());
-
-    String url = this.payService.getPayBaseUrl() + "/mmpaysptrans/pay_bank";
-    String responseContent = this.payService.post(url, request.toXML(), true);
-    EntPayBankResult result = BaseWxPayResult.fromXML(responseContent, EntPayBankResult.class);
-    result.checkResult(this.payService, request.getSignType(), true);
-    return result;
+    try {
+      request.setEncBankNo(this.encryptRSA(publicKeyFile, request.getEncBankNo()));
+      request.setEncTrueName(this.encryptRSA(publicKeyFile, request.getEncTrueName()));
+
+      request.checkAndSign(this.payService.getConfig());
+
+      String url = this.payService.getPayBaseUrl() + "/mmpaysptrans/pay_bank";
+      String responseContent = this.payService.post(url, request.toXML(), true);
+      EntPayBankResult result = BaseWxPayResult.fromXML(responseContent, EntPayBankResult.class);
+      result.checkResult(this.payService, request.getSignType(), true);
+      return result;
+    } finally {
+      // 使用完毕后立即删除临时公钥文件，避免运行期间临时文件堆积
+      publicKeyFile.delete();
+    }
   }
 
   @Override