update

mec-im/src/main/java/com/ym/whiteboard/WhiteBoardHelper.java

@@ -34,6 +34,7 @@ public class WhiteBoardHelper {
         StringBuilder sb = new StringBuilder();
         sb.append("&appId=").append(URLEncoder.encode(imProperties.getAppKey(), UTF8));
         sb.append("&roomNr=").append(URLEncoder.encode(roomId, UTF8));
+        sb.append("&limit=0");
         HttpURLConnection connection= httpHelper.createWhiteBoardPostHttpConnection(whiteBoardProperties.getHost(), "/room/create", "application/x-www-form-urlencoded");
         httpHelper.setBodyParameter(sb, connection);