layui添加动态菜单与选项卡 AJAX请求的例子

所属分类：网络编程 / JavaScript 阅读数： 410

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如下所示：

HTML

<!DOCTYPE html>
<html>
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
 <title>Layui</title>
 <link rel="stylesheet" href="js/css/layui.css" rel="external nofollow" media="all">
 </head>
 <body>
 <div class="layui-side layui-bg-black">
 <div class="layui-side-scroll">
 <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
 <ul class="layui-nav layui-nav-tree" lay-filter="test" id="memus"></ul>
 </div>
 </div>
 <div class="layui-body">
 <!-- 动态选项卡 -->
 <div id="tabzu" class="layui-tab layui-tab-card layui-tab-brief" lay-filter="tabDemo" lay-allowclose="true">
 <ul class="layui-tab-title"></ul>
 <div class="layui-tab-content"></div>
 </div>
 </div>
 <script src="js/layui.all.js" charset="utf-8"></script>
 <script type="text/javascript" src="js/index.js" ></script>
 </body>
 
</html>

index.js

layui.use('element', function() {
 function checkLastItem(arr, i) {
 return arr.length == (i + 1);
 }
 
 function getAhtml(obj){
 return "<a href=\"javascript:;\" οnclick=\"addTab('" + obj.name + "','" + obj.url + "')\" >" + obj.name + "</a>";
 }
 //动态菜单
 layui.jquery.ajax({
 url: "http://127.0.0.1:18000/sys/menus",
 method: 'POST',
 success: function(res) {
 var html = "";
 for(var i = 0; i < res.length; i++) {
 var strli = "<li class=\"layui-nav-item lay-unselect \" >";
 if (res[i].url =='#'){
  strli = strli + "<a href=\"javascript:;\">" + res[i].name + "</a>";
  console.log(res[i].name)
 }else{
  strli = strli + getAhtml(res[i]);
 }
 if(res[i].pId == "0" && !checkLastItem(res, i) && res[i + 1].pId != "0") {
  strli = strli + "<dl class=\"layui-nav-child\" >";
  for(; !checkLastItem(res, i) && res[i + 1].pId != "0"; i++) {
  strli = strli + "<dd>"+getAhtml(res[i+1])+"</dd>";
  }
  strli = strli + "</dl>";
 }
 strli = strli + "</li>";
 html = html + strli;
 }
 layui.jquery("#memus").html(html);
 layui.element.init(); //一定初始化一次
 }
 })
});
 
//添加选项卡
function addTab(name, url) {
 if(layui.jquery(".layui-tab-title li[lay-id='" + name + "']").length > 0) {
 //选项卡已经存在
 layui.element.tabChange('tabDemo', name);
 layer.msg('切换-' + name)
 } else {
 //动态控制iframe高度
 var tabheight = layui.jquery(window).height() - 95;
 contentTxt = '<iframe src="' + url + '" scrolling="no" width="100%" height="' + (tabheight) + 'PX"></iframe>';
 //新增一个Tab项
 layui.element.tabAdd('tabDemo', {
 title: name,
 content: contentTxt,
 id: name
 })
 //切换刷新
 layui.element.tabChange('tabDemo', name)
 layer.msg('新增-' + name)
 }
}

菜单JSON

[
 {
 "name": "首页",
 "url": "shouye.html",
 "id": "1",
 "pId": "0"
 },
 {
 "name": "数据库",
 "url": "#",
 "id": "1",
 "pId": "0"
 },
 {
 "name": "MYSQL",
 "url": "mysql.html",
 "id": "2",
 "pId": "1"
 },
 {
 "name": "ORACLE",
 "url": "oracle.html",
 "id": "3",
 "pId": "1"
 },
 {
 "name": "开发语言",
 "url": "#",
 "id": "4",
 "pId": "0"
 },
 {
 "name": "JAVA",
 "url": "java.html",
 "id": "5",
 "pId": "4"
 },
 {
 "name": "Python",
 "url": "python.html",
 "id": "6",
 "pId": "4"
 }
]

效果截图