1. ajax请求生成jsTree
[javascript] view plain copy <span><script> var r = []; // 权限树中被选中的叶子节点 var currentGroupId; function showPermitTree(id) { currentGroupId = id; $.ajax({ data : "currentGroupId=" + id, type : "POST", //dataType : 'json', url : "/test/permittree", error : function(data) { alert("出错了！！:" + 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("出错了！！:" + data); }, success : function(data) { alert("保存成功!"); } }); } </script></span><span> </span>
直接把测试项目中一段代码copy过来了，这是一棵带复选框的树。页面有地方点击之后触发showPermitTree(id)函数，发送ajax请求给后台，项目使用的是springmvc框架，后台返回JSONArray.toString。
2. jsTree change事件
上面代码中含change事件。把所有选中的节点的id放到一个数组中。
页面上有个按钮，点击后触发saveTree函数，发请求给后台，把选中的节点的id发给后台。
3.jsTree自定义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>
这段代码使用jsTree的contextmenu plugin，去掉jsTree自带的菜单，并自定义菜单
