ztree学习---将默认勾选的展开

    <div id="dialog-confirm" class="hide">
            <input type="hidden" id="uid" value=""/>
            <div class="zTreeDemoBackground left">
                <ul id="roleTree" class="ztree" ></ul>
            </div>
        </div>

 1 //弹出框分配角色
 2         function GetJqGridRowValue(id) {
 3             //window.open("[(${#request.getContextPath()})]/api/v1/registerService/manage");
 4             $( "#dialog-confirm" ).removeClass(‘hide‘).dialog({
 5                 resizable: true,
 6                 width: ‘500‘,
 7                 height:‘400‘,//设置弹框的长度和高度，如果内容超过限制，则会出现滚动条
 8                 modal: true,
 9                 title: "<div class=‘widget-header‘><h4 class=‘smaller‘>分配角色</h4></div>",
10                 title_html: true,
11                 buttons: [
12                     {
13                         html: "<i class=‘ace-icon fa fa-check‘></i>&nbsp; 保存",
14                         "class" : "btn btn-primary btn-minier", 
15                         click: function() {
16                             //点击保存事件触发的事件17                             $( this ).dialog( "close" );
18                         }
19                     }
20                     ,
21                     {
22                         html: "<i class=‘ace-icon fa fa-times bigger-110‘></i>&nbsp; 取消",
23                         "class" : "btn btn-minier",
24                         click: function() {
25                             $( this ).dialog( "close" );
26                         }
27                     }
28                 ]
29             });
30             
31             32             var setting = {  
33                 check: {  
34                     enable: true,  
35                     nocheckInherit: true  
36                 },  
37                 data: {  
38                     simpleData: {  
39                         enable: true //这里启用简单数据格式，请务必设置id， pId，并且让数据满足父子关系，即对后台数据的要求，并且根节点pid为0
40                     }  
41                 }  
42             };  
43             $.ajax({  
44                 type: "get",  
45                 url: "[(${#request.getContextPath()})]/api/v1/***,//从后台获取数据的url  
46                 data: {},  
47                 dataType: "json",  
48                 success: function(data){ 
49                     $.fn.zTree.init($("#roleTree"), setting, data); //根据后台传过来的List<Map(String,String>>数据组装成树结构，map中包含id,pid,name，checked等key。
50                     //树状结构,默认展开被勾选的 start
51                     var tree = $.fn.zTree.getZTreeObj("roleTree");
52                     var nodes=tree.getCheckedNodes(true); 
53                     for(var j=0;j<nodes.length;j++){
54                           var node = tree.getNodeByParam("id",nodes[j].id);
55                           var parent = node.getParentNode();
56                           if(!parent.open){
57                              tree.expandNode(parent,true,true);
58                           }
59                           tree.checkNode(node , true,true); 
60                     }
61                     //end
62                 },  
63                 error: function(XMLHttpRequest, textStatus, errorThrown) {  
64                     alert(XMLHttpRequest.status);  
65                     alert(XMLHttpRequest.readyState);  
66                     alert(textStatus);  
67                 },  
68             });  
69         }

 1 //树状结构,默认展开被勾选的 start
 2                     var tree = $.fn.zTree.getZTreeObj("roleTree");
 3                     var nodes=tree.getCheckedNodes(true); 
 4                     for(var j=0;j<nodes.length;j++){
 5                           var node = tree.getNodeByParam("id",nodes[j].id);
 6                           console.log("strs[j]"+nodes[j]+"node.id="+nodes[j].id)
 7                           var parent = node.getParentNode();
 8                           if(!parent.open){
 9                              tree.expandNode(parent,true,true);
10                           }
11                           tree.checkNode(node , true,true); 
12                     }