添加截图（快照）功能

panlinlin

2021-05-08 e48fa711a3664bece9b3e58840a75fe7c05bc47c

 src/main/java/com/genersoft/iot/vmp/gb28181/event/offline/KeepaliveTimeoutListenerForPlatform.java

@@ -38,7 +38,7 @@
    public void onMessage(Message message, byte[] pattern) {
        //  获取失效的key
        String expiredKey = message.toString();
        logger.info(expiredKey);
        logger.debug(expiredKey);
        if(!expiredKey.startsWith(VideoManagerConstants.PLATFORM_KEEPLIVEKEY_PREFIX)){
           logger.debug("收到redis过期监听，但开头不是"+VideoManagerConstants.PLATFORM_KEEPLIVEKEY_PREFIX+"，忽略");
           return;