update im+ws即时通信

add im消息去重 Im消息有序

nb-common/ws-common/src/main/java/com/nb/common/websocket/msg/handler/SubMsgRequestHandler.java

@@ -26,7 +26,7 @@ public class SubMsgRequestHandler implements IMsgRequestHandler {
     private final RedissonClient redissonClient;
     @Override
     public MessagingRequest.Type getType() {
-        return MessagingRequest.Type.unsub;
+        return MessagingRequest.Type.sub;
     }
 
     @Override