diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
index 990e788b..bfc7e23b 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/SIPRequestProcessorParent.java
@@ -170,10 +170,14 @@ public abstract class SIPRequestProcessorParent {
 	}
 	public Element getRootElement(RequestEvent evt, String charset) throws DocumentException {
 
+		byte[] rawContent = evt.getRequest().getRawContent();
+		if (rawContent == null) {
+			return null;
+		}
+
 		if (charset == null) {
 			charset = "gb2312";
 		}
-		Request request = evt.getRequest();
 		SAXReader reader = new SAXReader();
 		reader.setEncoding(charset);
 		// 对海康出现的未转义字符做处理。
@@ -182,10 +186,6 @@ public abstract class SIPRequestProcessorParent {
 		char despChar = '&';
 		byte destBye = (byte) despChar;
 		List<Byte> result = new ArrayList<>();
-		byte[] rawContent = request.getRawContent();
-		if (rawContent == null) {
-			return null;
-		}
 		for (int i = 0; i < rawContent.length; i++) {
 			if (rawContent[i] == destBye) {
 				boolean resul = false;
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
index 39d04c13..acdff1ce 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
@@ -68,6 +68,7 @@ public class SubscribeRequestProcessor extends SIPRequestProcessorParent impleme
 			Element rootElement = getRootElement(evt);
 			if (rootElement == null) {
 				log.error("处理SUBSCRIBE请求  未获取到消息体{}", evt.getRequest());
+				responseAck(request, Response.BAD_REQUEST);
 				return;
 			}
 			String cmd = XmlUtil.getText(rootElement, "CmdType");
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/MessageRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/MessageRequestProcessor.java
index 8ad042bb..237eab16 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/MessageRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/MessageRequestProcessor.java
@@ -102,11 +102,6 @@ public class MessageRequestProcessor extends SIPRequestProcessorParent implement
                     sipEvent.getErrorEvent().response(eventResult);
                 }
             }else {
-                byte[] rawContent = request.getRawContent();
-                if (rawContent == null) {
-                    responseAck(request, Response.BAD_REQUEST, "content is null");
-                    return;
-                }
                 Element rootElement;
                 try {
                     rootElement = getRootElement(evt);