多功能jQuery树插件zTree实现权限列表简单实例

<link type="text/css" rel="stylesheet" href="zTree/zTreeStyle.css" />
<script type="text/javascript" src="js/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="js/jquery.ztree.excheck-3.5.js"></script> 

 <div class="edit_content">
      <div class="qxlb">
        <div class="add_title"> 
          <span>权限列表</span>
        </div>
        <div class="qxlb_content">
        <ul id="tree" class="ztree"></ul>
        </div>
      </div>
 </div>

 <SCRIPT type="text/javascript">
var zTree;
//创建树型结构
function createTree() {
  var setting = {
    check:{
      enable:true
    },
    view: {
      dblClickExpand: true,
      expandSpeed: ""
    },
    //异步加载
    async: {
      enable: true,//设置是否异步加载
      url:"<%=path%>/role/getResourcesList.do", //设置异步获取节点的 URL 地址
      otherParam: [ "roleId", '${updateRole.id}']
      
    },
    
    //这个data里面的pIdKey,idKey,name等等之类的都是对应后台查出的字段名字，
     在sql中写好或者在拼接json的时候先拼接好，前太接收的时候只要对应一直就可以了
    data: {
      simpleData: {
        enable: true,
        pIdKey: "PARENTID",
        idKey: "ID"
      },
        key: {
          checked: "CHECKED",
          name:"NAME"
        }
    },
    callback: {
     onAsyncSuccess: zTreeOnAsyncSuccess 
  } 
  };
  //初始化  
  zTree = $.fn.zTree.init($("#tree"), setting);  
  zTree.expandAll(true);
}
/* 异步加载无法展开tree 默认展开一级菜单 */
var firstAsyncSuccessFlag = 0;
function zTreeOnAsyncSuccess(event, treeId, msg) { 
if (firstAsyncSuccessFlag == 0) { 
     try { 
         //调用默认展开第一个结点 
         var selectedNode = zTree.getSelectedNodes(); 
         var nodes = zTree.getNodes(); 
         zTree.expandNode(nodes[0], true); 
         var childNodes = zTree.transformToArray(nodes[0]); 
         zTree.expandNode(childNodes[1], true); 
         zTree.selectNode(childNodes[1]); 
         var childNodes1 = zTree.transformToArray(childNodes[1]); 
         zTree.checkNode(childNodes1[1], true, true); 
         firstAsyncSuccessFlag = 1; 
      } catch (err) { 
      
      } 
   } 
}

$(function(){
  //页面加载完成创建树
  createTree();  
});

function submitRole(){
  //获取选中的节点，传到后台
  var nodes = zTree.getCheckedNodes();
  var ids = [];
  for(var i=0,l=nodes.length;i<l;i  ){
    ids[ids.length] = nodes[i].ID;
  }
  //var _resourcesIds=ids.join(",");
  document.getElementById("hidden_resourceList").value=ids.join(",");
      
  //$("#resourcesRoleListForm").submit();
}
</SCRIPT>