尚筹网：菜单维护之建模

Bertha 。 2023-06-28 06:08 23阅读 0赞

# 建立数据库表 #

CREATE TABLE t_menu (
    	id INT (11) NOT NULL auto_increment,
    	pid INT (11),
    	`name` VARCHAR (200),
    	url VARCHAR (200),
    	icon VARCHAR (200),
    	PRIMARY KEY (id)
    );
    
    
    
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('1',NULL,'系统权限菜单','glyphicon glyphicon-th-list',NULL);
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('2','1','控制面板','glyphicon glyphicon-dashboard','main.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('3','1','权限管理','glyphicon glyphicon glyphicon-tasks',NULL);
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('4','3','用户维护','glyphicon glyphicon-user','user/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('5','3','角色维护','glyphicon glyphicon-king','role/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('6','3','许可维护','glyphicon glyphicon-lock','permission/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('7','1','业务审核','glyphicon glyphicon-ok',NULL);
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('8','7','实名认证审核','glyphicon glyphicon-check','auth_cert/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('9','7','广告审核','glyphicon glyphicon-check','auth_adv/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('10','7','项目审核','glyphicon glyphicon-check','auth_project/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('11','1','业务管理','glyphicon glyphicon-th-large',NULL);
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('12','11','资质维护','glyphicon glyphicon-picture','cert/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('13','11','分类管理','glyphicon glyphicon-equalizer','certtype/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('14','11','流程管理','glyphicon glyphicon-random','process/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('15','11','广告管理','glyphicon glyphicon-hdd','advert/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('16','11','消息模板','glyphicon glyphicon-comment','message/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('17','11','项目分类','glyphicon glyphicon-list','projectType/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('18','11','项目标签','glyphicon glyphicon-tags','tag/index.htm');
    insert into `t_menu` (`id`, `pid`, `name`, `icon`, `url`) values('19','1','参数管理','glyphicon glyphicon-list-alt','param/index.htm');

## 形成树形结构的关键依据 ##

在数据库表中通过pid字段，让当前记录指向它的父节点的记录，从而形成树形结构。  
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一条记录关联了同一个表中的其他记录，称之为自关联。

# 逆向工程 #

1、/atcrowdfunding-reverse/src/main/resources/generatorConfig.xml：

选择pom.xml----》 Run as —》 Maven build … —》将Goal的值设置为：mybatis-generator:generate----》Run

2、调整Menu.java：生成无参构造器、有参构造器和toString方法，以及加入子节点属性，如下：

// 对应数据库表主键
    	private Integer id;
    
    	// 对应父节点id（如果pid为null，则说明当前节点是根节点）
    	private Integer pid;
    
    	// 节点名称
    	private String name;
    
    	// 节点对应的URL地址
    	private String url;
    
    	// 节点的图标
    	private String icon;
    
    	// 当前节点的子节点集合，设置默认值是为了避免组装节点时空指针异常
    	private List<Menu> children = new ArrayList<>();
    
    	// 控制节点展开还是折叠，设置为true是让整个树形菜单默认展开
    	private Boolean open = true;
    
        
        .....

3、逆向工程生成的资源各归各位

将atcrowdfunding-reverse/src/main/java目录下的com.atguigu.crowd.funding.entity包调整到atcrowdfunding-admin-4-entity模块的/src/main/java下

atcrowdfunding-reverse/src/main/java目录下的com.atguigu.crowd.funding.mapper包放到component模块的/src/main/java下

在atcrowdfunding-admin-1-webui/src/main/resources/mybatis/mapper目录，然后将com.atguigu.crowd.funding.mapper包的AdminMapper.xml放在atcrowdfunding-admin-1-webui模块的/src/main/resources下

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