dTree创建树型结构

Action中：

public void treeView1() throws ServletException, IOException {
  StringBuffer bufHtml = new StringBuffer();
  List<Power> powerList=PowerBean.listPowerAll();
  Map<Integer,List<Search>> pslist=new HashMap<Integer,List<Search>>();
  Integer id;
  for(int i=0;powerList!=null&&i<powerList.size();i++){
   id=powerList.get(i).getId();
   pslist.put(id, this.findSearchByPid(id));
  }
  bufHtml.append("<script type=\"text/javascript\">");
  bufHtml.append("d=new dTree('d');");
  bufHtml.append("d.add(0,-1,'地图展示');");
  int i=0;
  int j=i+1;
  int m=0;
  for (Power power : powerList) {
   bufHtml.append("d.add(");
   bufHtml.append(j+","+i+",");
   bufHtml.append("'"+power.getName()+"'");
   bufHtml.append(");");
   List<Search> slst = pslist.get(power.getId());
   if(slst.size()>0){
    m=j+1;
    for (Search search : slst) {
     bufHtml.append("d.add(");
     bufHtml.append(m+","+j+",");
     bufHtml.append("'"+search.getName()+"','");
     bufHtml.append("../viewer/searchCommonArea.ctr?sid="+search.getId()+"&apid=0','','main');");
     m=m+1;
    }
    if(m>0){
     j=m+1;
    }
   }else{
    j=j+1;
   }
  
  }
  bufHtml.append("document.write(d)");
  bufHtml.append("</script>");
  request.setAttribute("treeJS1", bufHtml.toString());
  super.forView(search1link, request, response);
 }

Jsp页面：

<div class="dtree" >
      <p>
       <a href="javascript: d.openAll();"><font color="#FFFFFF">展开所有</font>
       </a> |
       <a href="javascript: d.closeAll();"><font color="#FFFFFF">关闭所有</font>
       </a>
      </p>
      <%
      String buf = (String)request.getAttribute("treeJS1");
      out.println(buf);
      %>
     </div>

备注：forView方法如下：

 public void forView(String url,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
            url = CtrModelContainer.Protect_model_url + url;
            request.getRequestDispatcher(url).forward(request, response);
    }