1. ajax請求生成jsTree
[javascript] view plain copy <span style="font-size:14px;"><script> var r = []; // 權限樹中被選中的葉子節點 var currentGroupId; function showPermitTree(id) { currentGroupId = id; $.ajax({ data : "currentGroupId=" + id, type : "POST", //dataType : 'json', url : "/test/permittree", error : function(data) { alert("出錯了!!:" + data); }, success : function(data) { //alert("success:" + data); createPermitTree(data); } }); ${'buttonDiv'}.style.display=""; } function createPermitTree(datastr) { datastr = eval("" + datastr + ""); $('#permitTree').jstree({ 'plugins' : [ "wholerow", "checkbox", "types" ], 'core' : { "themes" : { "responsive" : false }, 'data' : datastr }, "types" : { "default" : { "icon" : "fa fa-folder icon-state-warning icon-lg" }, "file" : { "icon" : "fa fa-file icon-state-warning icon-lg" } } }); } // listen for event $('#permitTree').on('changed.jstree', function(e, data) { r = []; var i, j; for (i = 0, j = data.selected.length; i < j; i++) { var node = data.instance.get_node(data.selected[i]); if (data.instance.is_leaf(node)) { r.push(node.id); } } //alert('Selected: ' + r.join('@@')); }) function saveTree() { $.ajax({ data : {'currentGroupId' : currentGroupId, 'selectedNodes' : r.join('@@')}, type : "POST", //dataType : 'json', url : "/test/savetree", error : function(data) { alert("出錯了!!:" + data); }, success : function(data) { alert("保存成功!"); } }); } </script></span><span style="font-size:24px;"> </span>
直接把測試項目中一段代碼copy過來了,這是一棵帶復選框的樹。頁面有地方點擊之後觸發showPermitTree(id)函數,發送ajax請求給後台,項目使用的是springmvc框架,後台返回JSONArray.toString。
2. jsTree change事件
上面代碼中含change事件。把所有選中的節點的id放到一個數組中。
頁面上有個按鈕,點擊後觸發saveTree函數,發請求給後台,把選中的節點的id發給後台。
3.jsTree自定義contextmenu
[javascript] view plain copy <script> $('#jstree').jstree({ core : { check_callback : true, data : [ { "id" : "1", "parent" : "#", "text" : "root" }, { "id" : "2", "parent" : "1", "text" : "child 1" }, { "id" : "3", "parent" : "1", "text" : "child 2" } ], }, plugins : ["wholerow","contextmenu"], "contextmenu": { "items": { "create": null, "rename": null, "remove": null, "ccp": null, "add": { "label": "add", "action": function (obj) { var inst = jQuery.jstree.reference(obj.reference); var clickedNode = inst.get_node(obj.reference); alert("add operation--clickedNode's id is:" + clickedNode.id); } }, "delete": { "label": "delete", "action": function (obj) { var inst = jQuery.jstree.reference(obj.reference); var clickedNode = inst.get_node(obj.reference); alert("delete operation--clickedNode's id is:" + clickedNode.id); } } } } }).on("ready.jstree", function (e, data) { data.instance.open_all(); }); </script>
這段代碼使用jsTree的contextmenu plugin,去掉jsTree自帶的菜單,並自定義菜單
以上就是本文的全部內容,希望對大家有所幫助,同時也希望多多支持!