Layui 导航默认展开和菜单栏选中高亮设置

<ul class="layui-nav layui-nav-tree custom-nav-tree" lay-filter="kitNavbar" kit-navbar>

                    <c:if test="${title_sys eq '内容管理' }">
                        <li class="layui-nav-item index1 layui-nav-itemed"><a href="javascript:;"><i class="fa fa-plug" aria-hidden="true">i><span>宣传教育span>a>
                            <dl class="layui-nav-child">
                                <dd class="layui-this">
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/jctt',icon:'',title:'基层头条',id:'73'}"><i class="layui-icon" aria-hidden="true">i><span>基层头条span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/dyxf',icon:'',title:'党员先锋',id:'74'}"><i class="layui-icon" aria-hidden="true">i><span>党员先锋span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/wdk',icon:'',title:'微党课',id:'75'}"><i class="layui-icon" aria-hidden="true">i><span>微党课span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/remote_education',icon:'',title:'远程教育',id:'76'}"><i class="layui-icon" aria-hidden="true">i><span>远程教育span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/constant/ad',icon:'',title:'广告轮播',id:'77'}"><i class="layui-icon" aria-hidden="true">i><span>广告轮播span>a>
                                dd>

                            dl>
                        li>

                        <li class="layui-nav-item index4"><a href="javascript:;"><i class="fa fa-plug" aria-hidden="true">i><span>每日一学span>a>
                            <dl class="layui-nav-child">
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/mryx_type',icon:'',title:'学习类型管理',id:'200'}"><i class="layui-icon" aria-hidden="true">i><span>学习类型管理span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/mryx',icon:'',title:'知识点管理',id:'201'}"><i class="layui-icon" aria-hidden="true">i><span>知识点管理span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/mryx_publish',icon:'',title:'发布记录列表',id:'202'}"><i class="layui-icon" aria-hidden="true">i><span>发布记录列表span>a>
                                dd>
                            dl>
                        li>
                        <li class="layui-nav-item index5"><a href="javascript:;"><i class="fa fa-plug" aria-hidden="true">i><span>每月一考span>a>
                            <dl class="layui-nav-child">
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/quest_type_index',icon:'',title:'题库类型',id:'80'}"><i class="layui-icon" aria-hidden="true">i><span>题库类型span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/quest_index',icon:'',title:'考题管理',id:'81'}"><i class="layui-icon" aria-hidden="true">i><span>考题管理span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/quest_model_index',icon:'',title:'考卷模板',id:'82'}"><i class="layui-icon" aria-hidden="true">i><span>考卷模板span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path %>/content/exam_index',icon:'',title:'考卷管理',id:'83'}"><i class="layui-icon" aria-hidden="true">i><span>考卷管理span>a>
                                dd>
                                <dd>
                                    <a href="javascript:;" kit-target data-options="{url:'<%=path%>/content/record_index',icon:'',title:'考试记录',id:'84'}"><i class="layui-icon" aria-hidden="true">i><span>考试记录span>a>
                                dd>
                            dl>li>
                    c:if>
        ul>

在第一个宣传教育li中添加class为layui-nav-itemed，以及在第一个dd中添加class为layui-this。

效果展示如下：

本人也是通过查看点击相应导航，在浏览器控制台查看渲染后的class，得出此结果。

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