tree类中的for循环一直报错Node node=new Node(function.getId(),function.getParentId(),function.getName(),"open",function.getSerialNum() ,new NodeAttribute(function.getId(),null==function.getUrl()? "": function.getUrl()));

Node node=new Node(function.getId(),function.getParentId(),function.getName(),"open",function.getSerialNum()                     ,new NodeAttribute(function.getId(),null==function.getUrl()? "": function.getUrl()));