From 76c7e994a54c27c9a787bcb04d39fa57ad7e73fe Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Sat, 15 Nov 2025 17:14:45 +0800
Subject: [PATCH] =?UTF-8?q?:bug:=20#3700=20=E4=BF=AE=E5=A4=8D=E7=A9=BA?=
 =?UTF-8?q?=E6=8C=87=E9=92=88=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../weixin/open/bean/message/WxOpenXmlMessage.java       | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenXmlMessage.java b/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenXmlMessage.java
index 9185a4e03..449697c5a 100644
--- a/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenXmlMessage.java
+++ b/weixin-java-open/src/main/java/me/chanjar/weixin/open/bean/message/WxOpenXmlMessage.java
@@ -299,7 +299,9 @@ public class WxOpenXmlMessage implements Serializable {
 
   public static WxOpenXmlMessage fromXml(String xml) {
     //修改微信变态的消息内容格式，方便解析
-    xml = xml.replace("</PicList><PicList>", "");
+    if (xml != null) {
+      xml = xml.replace("</PicList><PicList>", "");
+    }
     return XStreamTransformer.fromXml(WxOpenXmlMessage.class, xml);
   }
 
@@ -321,6 +323,11 @@ public class WxOpenXmlMessage implements Serializable {
     WxOpenCryptUtil cryptUtil = new WxOpenCryptUtil(wxOpenConfigStorage);
     String plainText = cryptUtil.decryptXml(msgSignature, timestamp, nonce, encryptedXml);
     log.debug("解密后的原始xml消息内容：{}", plainText);
+    
+    if (plainText == null || plainText.trim().isEmpty()) {
+      throw new WxRuntimeException("解密后的xml消息内容为空，请检查加密参数是否正确");
+    }
+    
     WxOpenXmlMessage wxOpenXmlMessage = fromXml(plainText);
     wxOpenXmlMessage.setContext(plainText);
     return wxOpenXmlMessage;