asmack接收openfire的系统消息

XMPPConnection con;
con.addPacketListener(pListener, new MessageTypeFilter(
Message.Type.normal));

PacketListener pListener = new PacketListener() {

@Override
public void processPacket(Packet packetz) {
Message message = (Message) packetz;


if (message.getType() == Type.normal) {
System.out.println("--------系统消息来了------------");

}
}
};