我的dtree怎么只能显示一条记录。

        <%
          PartDAO dao=new PartDAO();
          ArrayList arr=new ArrayList();
          arr=dao.getx();
          System.out.println(arr.size());
          
          for(int i=0;i<arr.size();i++)
{
      Partbean vo=(Partbean)arr.get(i);
      System.out.println(vo.getGroupid());
      System.out.println(vo.getPid());
      System.out.println(vo.getGroupname());
    %>
d.add("<%=vo.getNodid()%>","<%=vo.getPid()%>","<%=vo.getGroupname()%>","<%=vo.getUrl()%>","","","","","true");
            
        <%
            }
        %>   
        控制台输出的的和数据库里一样可页面只显示第一条记录。若随便改成别的的：d.add("1","-1","京津","a","","","","",true); 
d.add("11","1","A","","","","","",true); 
d.add("110","11","A","content.jsp?moduleName= XXX","","mainFrame"); 
d.add("11","11","B","javascript:void(0)","", "链接在哪里显示"); 
d.add("112","11","C","javascript:void(0)","", "mainFrame"); 
就全显示