检查设备是否存在， 不存在则不回复心跳

src/main/java/com/genersoft/iot/vmp/gb28181/transmit/request/impl/MessageRequestProcessor.java

@@ -315,12 +315,16 @@ public class MessageRequestProcessor extends SIPRequestAbstractProcessor {
 		try {
 			Element rootElement = getRootElement(evt);
 			String deviceId = XmlUtil.getText(rootElement, "DeviceID");
+			// 检查设备是否存在， 不存在则不回复
+			if (storager.exists(deviceId)) {
 				// 回复200 OK
 				responseAck(evt);
 				if (offLineDetector.isOnline(deviceId)) {
 					publisher.onlineEventPublish(deviceId, VideoManagerConstants.EVENT_ONLINE_KEEPLIVE);
 				} else {
 				}
+			}
+
 		} catch (ParseException | SipException | InvalidArgumentException | DocumentException e) {
 			e.printStackTrace();
 		}