优化收到心跳设置设备上线的逻辑

src/main/java/com/genersoft/iot/vmp/storager/IRedisCatchStorage.java

@@ -223,4 +223,11 @@ public interface IRedisCatchStorage {
 
     void sendStreamPushRequestedMsg(MessageForPushChannel messageForPushChannel);
 
+    /**
+     * 判断设备状态
+     * @param deviceId 设备ID
+     * @return
+     */
+    public boolean deviceIsOnline(String deviceId);
+
 }

src/main/java/com/genersoft/iot/vmp/storager/impl/RedisCatchStorageImpl.java

@@ -645,4 +645,10 @@ public class RedisCatchStorageImpl implements IRedisCatchStorage {
         logger.info("[redis 报警通知] {}: {}", key, JSON.toJSON(msg));
         redis.convertAndSend(key, (JSONObject)JSON.toJSON(msg));
     }
+
+    @Override
+    public boolean deviceIsOnline(String deviceId) {
+        String key = VideoManagerConstants.KEEPLIVEKEY_PREFIX + userSetting.getServerId() + "_" + deviceId;
+        return redis.hasKey(key);
+    }
 }