1.html/jsp文件javascript
<body>
<div style="margin:10px 0;"></div>
<div class="easyui-panel" style="padding:5px">
<ul id="tt" class="easyui-tree" >
</ul>
</div>
<!-- 右鍵菜單 -->
<div id="mm" class="easyui-menu" style="width:120px;">
<div onclick="append()" data-options="iconCls:'icon-add'">增長子部門</div>
<div onclick="removeit()" data-options="iconCls:'icon-remove'">刪除部門</div>
<div class="menu-sep"></div>
<div onclick="insertNode()">增長部門</div>
<div onclick="updateNode()">編輯部門</div>
</div>
</body>html
2.js文件java
<script type="text/javascript" >
var jdata = 訪問後臺得到的Json數據(list應該也行,不過沒有試過)
$(function(){
$('#tt').tree({
checkbox: true,
//url: ,
data:jdata,
parentField:"parentNodeCode",
textFiled:"orgName",
idFiled:"orgId",onContextMenu: function(e,node){
//顯示上下文菜單:就是顯示右鍵菜單
e.preventDefault();
$(this).tree('select',node.target);
$('#mm').menu('show',{
left: e.pageX,
top: e.pageY
});
},
formatter:function(node){
//顯示父節點含有子節點個數
var s = node.text;
if (node.children){
s += ' <span style=\'color:blue\'>(' + node.children.length + ')</span>';
}
return s;
},
onClick:function(node){
//node.isLeaf:判斷他們是否是葉子,數據庫中查詢中已賦值
//children:經過判斷他們是否有子節點了,就不在執行了,防止屢次加載數據,致使重複
children=$('#tt').tree('getChildren',node.target);
if(node && node.isLeaf=='false' && !children.length){
$('#tt').tree('append', {
parent: node.target,
data:data//訪問後臺得到的Json數據
});
}node
//單擊組織樹的節點時,同時grid去訪問數據庫得到相應的數據
showStu();
},
onCollapse : function(node){
/*
當節點收起來的時候,查找的子節點,並逐一刪除
*/
var children = $('#tt').tree("getChildren",node.target);
if(children.length){
for (var i=0;i<children.length;i++){
$('#tt').tree("remove",children[i].target);
}
}
}
});
});
//對數據進行處理,處理成樹的形式:重寫loadFilter --這個不是原創,不過在哪裏看到就忘了
$.fn.tree.defaults.loadFilter = function (data, parent) {
var opt = $(this).data().tree.options;
var idFiled,
textFiled,
parentField;
if (opt.parentField) {
idFiled = opt.idFiled || 'orgId';
textFiled = opt.textFiled || 'orgName';
parentField = opt.parentField || 'parentNodeCode';
var i,
l,
treeData = [],
tmpMap = [];
for (i = 0, l = data.length; i < l; i++) {
tmpMap[data[i][idFiled]] = data[i];
//alert(data[i][idFiled]);// 節點的orgId :
}
for (i = 0, l = data.length; i < l; i++) {
if (tmpMap[data[i][parentField]] && data[i][idFiled] != data[i][parentField]) {
if (!tmpMap[data[i][parentField]]['children'])
tmpMap[data[i][parentField]]['children'] = [];
data[i]['text'] = data[i][textFiled];
tmpMap[data[i][parentField]]['children'].push(data[i]);
} else {
data[i]['text'] = data[i][textFiled];
treeData.push(data[i]);
}
}
return treeData;
}
return data;
};數據庫
</script>json
至於右鍵的四個方法就本身根據的業務邏輯實現app
3/tree.json數據大概以下:重寫的loadFilter會根據pid/parentNodeCode掛接成樹jsp
[
{
"orgId": 1,
"orgName": "Folder1"
},
{
"orgId": 2,
"parentNodeCode": 1,
"orgName": "File1",
"checked": true
},
{
"orgId": 3,
"parentNodeCode": 1,
"orgName": "Folder2",
"state": "open"
},
{
"orgId": 4,
"parentNodeCode": 3,
"orgName": "File3",
"checked": true
},
{
"orgId": 8,
"parentNodeCode": 3,
"orgName": "Async Folder"
},
{
"orgId": 9,
"orgName": "language",
"state": "closed"
},
{
"orgId": "j1",
"parentNodeCode": 9,
"orgName": "Java"
},
{
"orgId": "j2",
"parentNodeCode": 9,
"orgName": "C#"
}
]ui