src/main/resources/templates/view/admin/menu/tree.html

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<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
    <head>
        <meta charset="utf-8">
        <title>菜单管理</title>
        <link rel="icon" href="favicon.ico">
        <link rel="stylesheet" th:href="@{/layui/css/layui.css}" media="all"/>
        <link rel="stylesheet" th:href="@{/css/public.css}" media="all"/>
        <link rel="stylesheet" th:href="@{/layui_ext/dtree/dtree.css}">
        <link rel="stylesheet" th:href="@{/layui_ext/dtree/font/dtreefont.css}">
    </head>
    <body>
        <ul id="menuTree" class="dtree" data-id="0"></ul>
        <script type="text/javascript" th:src="@{/layui/layui.js}"></script>
        <script type="text/javascript">
            var menuTree;
            layui.extend({
                dtree: '/layui_ext/dist/dtree'
            }).use(['jquery', 'layer', 'form', 'dtree'], function () {
                var $ = layui.jquery;
                var layer = layui.layer;
                var form = layui.form;
                var dtree = layui.dtree;

                // 初始化树
                menuTree = dtree.render({
                    elem: "#menuTree",
                    dataStyle: "layuiStyle",  //使用layui风格的数据格式
                    response: {message: "msg", statusCode: 0},  //修改response中返回数据的定义
                    dataFormat: "list",  //配置data的风格为list
                    url: "/admin/menu/loadMenuMangerLeftTreeJson" // 使用url加载（可与data加载同时存在）
                });

                //监听树的节点点击 事件
                dtree.on("node('menuTree')", function (obj) {
                    var id = obj.param.nodeId;
                    window.parent.right.reloadTable(id);
                });
            });
        </script>
    </body>
</html>