From cb8011909063b330f5da6cdb03c2e329b97b18a2 Mon Sep 17 00:00:00 2001
From: 朱俊杰 <502612493@qq.com>
Date: 星期四, 31 三月 2022 09:19:45 +0800
Subject: [PATCH] 订阅查询错误和空指针

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

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/SIPRequestHeaderProvider.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/SIPRequestHeaderProvider.java
index cb208a3..5d5deae 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/SIPRequestHeaderProvider.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/cmd/SIPRequestHeaderProvider.java
@@ -230,6 +230,7 @@
 		Request request = null;
 		if (streamInfo == null) return null;
 		Dialog dialog = streamSession.getDialogByStream(streamInfo.getDeviceID(), streamInfo.getChannelId(), streamInfo.getStream());
+		if (dialog == null) return null;
 
 		SipURI requestLine = sipFactory.createAddressFactory().createSipURI(device.getDeviceId(),
 				device.getHostAddress());

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