LayUI之树形菜单的实现（详细描述附带项目案例）及数据库脚本资源-CSDN下载

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55 浏览量 2023-07-11 22:40:27 上传评论收藏 5.54MB 7Z 举报

在IT领域，尤其是在Web开发中，用户界面的设计与交互至关重要，而树形菜单作为一种常见的UI元素，被广泛用于展示层级关系的数据。LayUI是一个流行的前端框架，它提供了丰富的组件和样式，使得开发者能够轻松创建出美观且功能强大的网页应用。本文将详细探讨如何使用LayUI实现树形菜单，并结合数据库脚本来构建一个实际的项目案例。我们需要理解LayUI的树形菜单组件。LayUI的树形菜单主要基于`layui.tree`模块，该模块提供了生成和操作树形结构的功能。通过配置参数和数据，我们可以定制树形菜单的显示样式、节点点击事件等。要创建一个树形菜单，我们首先需要准备数据。这些数据通常包含节点的ID、父ID、名称以及是否有子节点等属性。例如： ```json [ { "id": 1, "parentId": 0, "name": "一级菜单1", "children": [ { "id": 2, "parentId": 1, "name": "二级菜单1-1" }, { "id": 3, "parentId": 1, "name": "二级菜单1-2" } ] }, { "id": 4, "parentId": 0, "name": "一级菜单2" } ] ``` 接下来，我们可以使用LayUI的`layui.tree`方法来渲染这些数据。以下是一个简单的示例： ```javascript layui.use('tree', function(){ var tree = layui.tree; var data = [/* 上述JSON数据 */]; tree.render({ elem: '#treeDemo' // 渲染的目标元素 ,data: data ,click: function(item){ console.log(item); // 节点被点击时，返回当前节点数据 } }); }); ``` 在实际项目中，我们可能需要动态加载数据，这可以通过异步请求从服务器获取。例如，使用Ajax调用后台提供的接口，获取数据库中的菜单数据。这涉及到后端开发，通常会使用如Java、Python、Node.js等语言配合数据库进行操作。提到数据库脚本，这通常指的是SQL语句，用于在数据库中创建表结构、插入数据或执行其他操作。在上述案例中，我们可能有一个名为`menu`的表，包含`id`、`parent_id`、`name`等字段，用于存储菜单的层级关系。创建这个表的SQL语句可能是这样的： ```sql CREATE TABLE `menu` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `parent_id` INT(11) DEFAULT NULL, `name` VARCHAR(50) NOT NULL, PRIMARY KEY (`id`) ); ``` 然后，我们可以编写Java、Python、Node.js等后端代码，连接数据库，执行查询并返回JSON数据，供前端的LayUI树形菜单使用。总结来说，实现LayUI的树形菜单需要前端与后端的配合。前端负责展示和交互，通过`layui.tree`渲染数据；后端则提供数据，这可能涉及对数据库的读取和操作。项目案例和数据库脚本的结合，可以帮助开发者更好地理解和实践这一过程。在实际开发中，还需要考虑到性能优化、权限控制、数据安全等因素，以确保应用的稳定性和用户体验。

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YX_layui02(2).zip 5.56MB

t_oa_meeting_audit.sql 19KB

/* Navicat Premium Data Transfer Source Server : 本地连接 Source Server Type : MySQL Source Server Version : 80013 Source Host : localhost:3306 Source Schema : mybatis_ssm Target Server Type : MySQL Target Server Version : 80013 File Encoding : 65001 Date: 17/07/2022 23:31:45 */ SET NAMES utf8mb4; SET FOREIGN_KEY_CHECKS = 0; -- ---------------------------- -- Table structure for t_oa_meeting_audit -- ---------------------------- DROP TABLE IF EXISTS `t_oa_meeting_audit`; CREATE TABLE `t_oa_meeting_audit` ( `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键，唯一标识', `meetingId` bigint(11) NOT NULL COMMENT '外键，会议编号', `auditor` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '审批人', `sign` text CHARACTER SET utf8 COLLATE utf8_general_ci NULL COMMENT '审批签字', `createdate` timestamp(0) NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP(0) COMMENT '审批时间', PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '会议审批信息表' ROW_FORMAT = Dynamic; 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INSERT INTO `t_oa_meeting_audit` VALUES (8, 13, '1', '/test_layui/upload/sign/f84f9f214e86478ba4022b17457f5999.jpg', NULL); INSERT INTO `t_oa_meeting_audit` VALUES (9, 13, '1', '/test_layui/upload/sign/79528da56ebc40509dd327145526b5b0.jpg', '2022-07-16 19:33:23'); -- ---------------------------- -- Table structure for t_oa_meeting_feedback -- ---------------------------- DROP TABLE IF EXISTS `t_oa_meeting_feedback`; CREATE TABLE `t_oa_meeting_feedback` ( `id` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '主键，唯一标识', `meetingId` bigint(11) NOT NULL COMMENT '外键，会议编号', `personType` int(2) NOT NULL COMMENT '人员类别：1参会2列席', `personId` bigint(11) NOT NULL COMMENT '人员ID', `result` int(2) NOT NULL COMMENT '反馈结果：1参加0不参加', `reason` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '不参与会议的原因', PRIMARY KEY (`id`) USING BTREE ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '会议通知反馈表' ROW_FORMAT = Dynamic; -- ---------------------------- -- Records of t_oa_meeting_feedback -- ---------------------------- INSERT INTO `t_oa_meeting_feedback` VALUES ('0462ee5cc0aa4c06b4169e768d058227', 1, 1, 2, 1, '11111'); INSERT INTO `t_oa_meeting_feedback` VALUES ('1377914d74254d489598cf400604640d', 2, 2, 2, 1, '规划局'); INSERT INTO `t_oa_meeting_feedback` VALUES ('27c0cee6aee4483dafa015d8f7e8fefd', 10, 1, 1, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('6660ab06c3c148a3ba0cb7f6479d9160', 7, 1, 1, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('69ddadab8997492eb5a4e2bcd4874bcb', 5, 2, 1, 2, 'shengbin'); INSERT INTO `t_oa_meeting_feedback` VALUES ('74d54c231def4525a0fe517cc679b421', 5, 2, 3, 2, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('8a6e312baebb411f94011961fbf37d11', 10, 2, 2, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('9e17f56448da41559f7a9129014dbe8b', 5, 1, 1, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('a5035340b9fd4521b2c3917e7c65b9ec', 9, 1, 1, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('dbd15a664dc541fb96d02e5ee030ec3a', 5, 2, 4, 1, ''); INSERT INTO `t_oa_meeting_feedback` VALUES ('ddd78b0148204f08b80914d9f652e2b7', 10, 1, 3, 2, '家里有事'); INSERT INTO `t_oa_meeting_feedback` VALUES ('f65d94e5ec2e4bd6ba4c1ab0f4f5a1b4', 5, 2, 2, 1, ''); -- ---------------------------- -- Table structure for t_oa_meeting_info -- ---------------------------- DROP TABLE IF EXISTS `t_oa_meeting_info`; CREATE TABLE `t_oa_meeting_info` ( `id` bigint(11) NOT NULL AUTO_INCREMENT COMMENT '主键，唯一标识', `title` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '会议标题', `content` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '会议内容', `canyuze` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '1' COMMENT '参与人员', `liexize` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '列席人员', `zh

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