[置顶] 后台传的json串页面生成树

时间：2021-11-28 12:01:16
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml">
  <head>
  <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
  <title>无标题文档</title>
  <style type="text/css">
      body{
     font-size:14px;
      margin:0;}
     div{
     width:auto;
     height:auto;
     line-height:150%;}
     ul{
     list-style:none;
     margin-left:-20px;}
    ul li:hover{
     background-color:#DDDDDD;
     color:#FF0000;
     cursor:pointer;}
 </style>
 </head>

 <body>
     <div id="continer"></div>
 </body>
 </html>
 <script language="javascript" src="jquery-1.10.2.min.js"></script>
 <script language="javascript">
     //模拟数据
     var jsonData = 
     [{"subnetId":1,"subnetNode":-1,"subnetRemark":"状态自带","subnetName":"中心网络"},
 {"subnetId":2,"subnetNode":1,"subnetRemark":"好好的","subnetName":"北京"},
 {"subnetId":3,"subnetNode":1,"subnetRemark":"大唐电信","subnetName":"大唐电信"},
 {"subnetId":4,"subnetNode":1,"subnetRemark":"","subnetName":"上海"},
 {"subnetId":5,"subnetNode":4,"subnetRemark":"","subnetName":"中国联通"},
 {"subnetId":6,"subnetNode":3,"subnetRemark":"","subnetName":"移动"},
 {"subnetId":7,"subnetNode":2,"subnetRemark":"","subnetName":"你好"}];

     //主方法，运用递归实现
     function createTree(jsons,subnetNode){
         if(jsons != null){
             var ul = '<ul class="">' ;
             for(var i=0;i<jsons.length;i++){
                 if(jsons[i].subnetNode == subnetNode){
                     ul += '<li>' + jsons[i].subnetName + "</li>" ;
                     ul += createTree(jsons,jsons[i].subnetId) ;
                 }
             }
             ul += "</ul>" ;
        }
         return ul ;
     }

     $(function(){
         var ul = createTree(jsonData,-1) ;

         $("#continer").append(ul) ;

         //控制菜单的隐藏显示
         $("ul[class] li").each(function(){
             $(this).click(function(){
                 $(this).next().toggle() ;
             }) ;
         }) ;

     }) ;

 </script>

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