layui树（tree）获取所有选中的节点id
<script>
//渲染tree
layui.use(['form', 'tree'], function () {
var tree = layui.tree
, form = layui.form;
var inst1 = tree.render({
elem: '#roleTree' //绑定元素
,
id: 'tree1'
,
data: [{
"id": 1,
"title": "公司管理",
"children": [{
"id": 4,
"title": "人员列表",
"children": [{
"id": 5,
"title": "添加人员",
"children": null,
"spread": true,
"checked": true
}, {"id": 6, "title": "修改人员", "children": null, "spread": true, "checked": true}, {
"id": 7,
"title": "删除人员",
"children": null,
"spread": true,
"checked": true
}],
"spread": true,
"checked": null
}],
"spread": true,
"checked": null
}, {
"id": 8,
"title": "用户管理",
"children": [{
"id": 9,
"title": "用户列表",
"children": [{
"id": 11,
"title": "添加用户",
"children": null,
"spread": true,
"checked": true
}, {"id": 12, "title": "删除用户", "children": null, "spread": true, "checked": true}, {
"id": 13,
"title": "用户赋角色",
"children": null,
"spread": true,
"checked": true
}],
"spread": true,
"checked": null
}, {
"id": 10,
"title": "角色列表",
"children": [{
"id": 14,
"title": "添加角色",
"children": null,
"spread": true,
"checked": true
}, {"id": 15, "title": "删除角色", "children": null, "spread": true, "checked": true}, {
"id": 16,
"title": "角色赋权",
"children": null,
"spread": true,
"checked": true
}],
"spread": true,
"checked": null
}],
"spread": true,
"checked": null
}]
,
showCheckbox: true
})
;
// 监听点击按钮
$("#sub").click(function(){
//获取所有选中节点id数组
var checkedData = tree.getChecked('tree1'); //获取选中节点的数据
var nodeIds = new Array();
nodeIds = getCheckedId(checkedData);
console.log(nodeIds);
});
});
//获取所有选中的节点id
function getCheckedId(data) {
var id = "";
$.each(data, function (index, item) {
if (id != "") {
id = id + "," + item.id;
}
else {
id = item.id;
}
//item 没有children属性
if (item.children != null) {
var i = getCheckedId(item.children);
if (i != "") {
id = id + "," + i;
}
}
});
return id;
}
</script>