From cc63a52884ca3c56df66b74aa508803ff91c20e0 Mon Sep 17 00:00:00 2001
From: chenjialing <595168663@qq.com>
Date: 星期五, 06 五月 2022 17:44:56 +0800
Subject: [PATCH] 开发----增加预置位查询接口开发

---
 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
index 8025818..eed3763 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -25,6 +25,7 @@
      * */
     public static String getChannelIdFromHeader(Request request) {
         Header subject = request.getHeader("subject");
+        if (subject == null) return null;
         return ((Subject) subject).getSubject().split(":")[0];
     }
 

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