1.请参见项目代码地址

文章目录

一.菜单

1.1 菜单表结构
CREATE TABLE `sys_menu` (
  `menu_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '菜单ID',
  `menu_name` varchar(50) NOT NULL COMMENT '菜单名称',
  `parent_id` bigint(20) DEFAULT '0' COMMENT '父菜单ID',
  `order_num` int(4) DEFAULT '0' COMMENT '显示顺序',
  `path` varchar(200) DEFAULT '' COMMENT '路由地址',
  `component` varchar(255) DEFAULT NULL COMMENT '组件路径',
  `query` varchar(255) DEFAULT NULL COMMENT '路由参数',
  `is_frame` int(1) DEFAULT '1' COMMENT '是否为外链（0是 1否）',
  `is_cache` int(1) DEFAULT '0' COMMENT '是否缓存（0缓存 1不缓存）',
  `menu_type` char(1) DEFAULT '' COMMENT '菜单类型（M目录 C菜单 F按钮）',
  `visible` char(1) DEFAULT '0' COMMENT '菜单状态（0显示 1隐藏）',
  `status` char(1) DEFAULT '0' COMMENT '菜单状态（0正常 1停用）',
  `perms` varchar(100) DEFAULT NULL COMMENT '权限标识',
  `icon` varchar(100) DEFAULT '#' COMMENT '菜单图标',
  `create_by` varchar(64) DEFAULT '' COMMENT '创建者',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  `update_by` varchar(64) DEFAULT '' COMMENT '更新者',
  `update_time` datetime DEFAULT NULL COMMENT '更新时间',
  `remark` varchar(500) DEFAULT '' COMMENT '备注',
  PRIMARY KEY (`menu_id`)
) ENGINE=InnoDB AUTO_INCREMENT=2000 DEFAULT CHARSET=utf8mb4 COMMENT='菜单权限表';
2.1 在system模块中编写菜单业务层接口ISysMenuService及实现类以及Mapper层，在admin模块中编写菜单控制层SysMenuController。在common模块中编写实体类SysMenu。
/**
 * 菜单 业务层
 */
public interface ISysMenuService {
}

/**
 * 菜单 业务层处理
 */
@Service
public class SysMenuServiceImpl implements ISysMenuService {
    @Autowired
    private SysMenuMapper menuMapper;
}

/**
 * 菜单表 数据层
 */
public interface SysMenuMapper {
}

/**
 * 菜单信息
 */
@RestController
@RequestMapping("/system/menu")
public class SysMenuController extends BaseController {
    @Autowired
    private ISysMenuService menuService;
}

/**
 * 菜单权限表 sys_menu
 */
public class SysMenu extends BaseEntity {
    private static final long serialVersionUID = 1L;
	//菜单ID
    private Long menuId;
	//菜单名称
    private String menuName;
	//父菜单ID
    private Long parentId;
	//显示顺序
    private Integer orderNum;
	//路由地址
    private String path;
	//组件路径
    private String component;
	//路由参数
    private String query;
	//是否为外链（0是 1否）
    private String isFrame;
	//是否缓存（0缓存 1不缓存）
    private String isCache;
	//类型（M目录 C菜单 F按钮）
    private String menuType;
	//显示状态（0显示 1隐藏）
    private String visible;
	//菜单状态（0显示 1隐藏）
    private String status;
	//权限字符串
    private String perms;
	//菜单图标
    private String icon;
	//备注
    private String remark;

    //************************以下为非数据库字段********************888
	//父菜单名称
    private String parentName;
	//子菜单
    private List<SysMenu> children = new ArrayList<SysMenu>();
    //......省略getter和setter.....

二.根据用户id获取菜单列表

2.1 后端代码如下

在这里插入图片描述
在这里插入图片描述

	<resultMap type="com.mashirro.common.domain.SysMenu" id="SysMenuResult">
		<id     property="menuId"         column="menu_id"        />
		<result property="menuName"       column="menu_name"      />
		<result property="parentId"       column="parent_id"      />
		<result property="orderNum"       column="order_num"      />
		<result property="path"           column="path"           />
		<result property="component"      column="component"      />
		<result property="query"          column="query"          />
		<result property="isFrame"        column="is_frame"       />
		<result property="isCache"        column="is_cache"       />
		<result property="menuType"       column="menu_type"      />
		<result property="visible"        column="visible"        />
		<result property="status"         column="status"         />
		<result property="perms"          column="perms"          />
		<result property="icon"           column="icon"           />
		<result property="createBy"       column="create_by"      />
		<result property="createTime"     column="create_time"    />
		<result property="updateTime"     column="update_time"    />
		<result property="updateBy"       column="update_by"      />
		<result property="remark"         column="remark"         />
		<result property="parentName"     column="parent_name"    />
	</resultMap>

	<sql id="selectMenuVo">
        select menu_id, menu_name, parent_id, order_num, path, component, `query`, is_frame, is_cache, menu_type, visible, status, ifnull(perms,'') as perms, icon, create_time 
		from sys_menu
    </sql>
    
    <select id="selectMenuList" parameterType="com.mashirro.common.domain.SysMenu" resultMap="SysMenuResult">
		<include refid="selectMenuVo"/>
		<where>
			<if test="menuName != null and menuName != ''">
				AND menu_name like concat('%', #{menuName}, '%')
			</if>
			<if test="visible != null and visible != ''">
				AND visible = #{visible}
			</if>
			<if test="status != null and status != ''">
				AND status = #{status}
			</if>
		</where>
		order by parent_id, order_num
	</select>

	
	<select id="selectMenuListByUserId" parameterType="com.mashirro.common.domain.SysMenu" resultMap="SysMenuResult">
		select distinct m.menu_id, m.parent_id, m.menu_name, m.path, m.component, m.`query`, m.visible, m.status, ifnull(m.perms,'') as perms, m.is_frame, m.is_cache, m.menu_type, m.icon, m.order_num, m.create_time
		from sys_menu m
		left join sys_role_menu rm on m.menu_id = rm.menu_id
		left join sys_user_role ur on rm.role_id = ur.role_id
		left join sys_role ro on ur.role_id = ro.role_id
		where ur.user_id = #{params.userId}
		<if test="menuName != null and menuName != ''">
            AND m.menu_name like concat('%', #{menuName}, '%')
		</if>
		<if test="visible != null and visible != ''">
            AND m.visible = #{visible}
		</if>
		<if test="status != null and status != ''">
            AND m.status = #{status}
		</if>
		order by m.parent_id, m.order_num
	</select>
2.2 使用postman测试
{
    "msg": "操作成功",
    "code": 200,
    "data": [
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 1,
            "menuName": "系统管理",
            "parentId": 0,
            "orderNum": 1,
            "path": "system",
            "component": null,
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "M",
            "visible": "0",
            "status": "0",
            "perms": "",
            "icon": "system",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 4,
            "menuName": "若依官网",
            "parentId": 0,
            "orderNum": 4,
            "path": "http://ruoyi.vip",
            "component": null,
            "query": "",
            "isFrame": "0",
            "isCache": "0",
            "menuType": "M",
            "visible": "0",
            "status": "0",
            "perms": "",
            "icon": "guide",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 100,
            "menuName": "用户管理",
            "parentId": 1,
            "orderNum": 1,
            "path": "user",
            "component": "system/user/index",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "C",
            "visible": "0",
            "status": "0",
            "perms": "system:user:list",
            "icon": "user",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 102,
            "menuName": "菜单管理",
            "parentId": 1,
            "orderNum": 3,
            "path": "menu",
            "component": "system/menu/index",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "C",
            "visible": "0",
            "status": "0",
            "perms": "system:menu:list",
            "icon": "tree-table",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 107,
            "menuName": "通知公告",
            "parentId": 1,
            "orderNum": 8,
            "path": "notice",
            "component": "system/notice/index",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "C",
            "visible": "0",
            "status": "0",
            "perms": "system:notice:list",
            "icon": "message",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 1001,
            "menuName": "用户查询",
            "parentId": 100,
            "orderNum": 1,
            "path": "",
            "component": "",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "F",
            "visible": "0",
            "status": "0",
            "perms": "system:user:query",
            "icon": "#",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 1013,
            "menuName": "菜单查询",
            "parentId": 102,
            "orderNum": 1,
            "path": "",
            "component": "",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "F",
            "visible": "0",
            "status": "0",
            "perms": "system:menu:query",
            "icon": "#",
            "remark": null,
            "parentName": null,
            "children": []
        },
        {
            "createBy": null,
            "createTime": "2022-03-07 02:53:29",
            "updateBy": null,
            "updateTime": null,
            "params": {},
            "menuId": 1036,
            "menuName": "公告查询",
            "parentId": 107,
            "orderNum": 1,
            "path": "#",
            "component": "",
            "query": "",
            "isFrame": "1",
            "isCache": "0",
            "menuType": "F",
            "visible": "0",
            "status": "0",
            "perms": "system:notice:query",
            "icon": "#",
            "remark": null,
            "parentName": null,
            "children": []
        }
    ]
}
2.3 前端将list处理为树结构

在这里插入图片描述

/**
 * 构造树型结构数据
 * @param {*} data 数据源
 * @param {*} id id字段 默认 'id'
 * @param {*} parentId 父节点字段 默认 'parentId'
 * @param {*} children 孩子节点字段 默认 'children'
 */
export function handleTree(data, id, parentId, children) {
  let config = {
    id: id || 'id',
    parentId: parentId || 'parentId',
    childrenList: children || 'children'
  };

  var childrenListMap = {};
  var nodeIds = {};
  var tree = [];

  for (let d of data) {
    let parentId = d[config.parentId];
    if (childrenListMap[parentId] == null) {
      childrenListMap[parentId] = [];
    }
    nodeIds[d[config.id]] = d;
    childrenListMap[parentId].push(d);
  }

  for (let d of data) {
    let parentId = d[config.parentId];
    if (nodeIds[parentId] == null) {
      tree.push(d);
    }
  }

  for (let t of tree) {
    adaptToChildrenList(t);
  }

  function adaptToChildrenList(o) {
    if (childrenListMap[o[config.id]] !== null) {
      o[config.childrenList] = childrenListMap[o[config.id]];
    }
    if (o[config.childrenList]) {
      for (let c of o[config.childrenList]) {
        adaptToChildrenList(c);
      }
    }
  }
  return tree;
}

[
    {
        "searchValue": null,
        "createBy": null,
        "createTime": "2022-03-07 10:53:29",
        "updateBy": null,
        "updateTime": null,
        "remark": null,
        "params": {},
        "menuId": 1,
        "menuName": "系统管理",
        "parentName": null,
        "parentId": 0,
        "orderNum": 1,
        "path": "system",
        "component": null,
        "query": "",
        "isFrame": "1",
        "isCache": "0",
        "menuType": "M",
        "visible": "0",
        "status": "0",
        "perms": "",
        "icon": "system",
        "children": [
            {
                "searchValue": null,
                "createBy": null,
                "createTime": "2022-03-07 10:53:29",
                "updateBy": null,
                "updateTime": null,
                "remark": null,
                "params": {},
                "menuId": 100,
                "menuName": "用户管理",
                "parentName": null,
                "parentId": 1,
                "orderNum": 1,
                "path": "user",
                "component": "system/user/index",
                "query": "",
                "isFrame": "1",
                "isCache": "0",
                "menuType": "C",
                "visible": "0",
                "status": "0",
                "perms": "system:user:list",
                "icon": "user",
                "children": [
                    {
                        "searchValue": null,
                        "createBy": null,
                        "createTime": "2022-03-07 10:53:29",
                        "updateBy": null,
                        "updateTime": null,
                        "remark": null,
                        "params": {},
                        "menuId": 1001,
                        "menuName": "用户查询",
                        "parentName": null,
                        "parentId": 100,
                        "orderNum": 1,
                        "path": "",
                        "component": "",
                        "query": "",
                        "isFrame": "1",
                        "isCache": "0",
                        "menuType": "F",
                        "visible": "0",
                        "status": "0",
                        "perms": "system:user:query",
                        "icon": "#"
                    }
                ]
            },
            {
                "searchValue": null,
                "createBy": null,
                "createTime": "2022-03-07 10:53:29",
                "updateBy": null,
                "updateTime": null,
                "remark": null,
                "params": {},
                "menuId": 102,
                "menuName": "菜单管理",
                "parentName": null,
                "parentId": 1,
                "orderNum": 3,
                "path": "menu",
                "component": "system/menu/index",
                "query": "",
                "isFrame": "1",
                "isCache": "0",
                "menuType": "C",
                "visible": "0",
                "status": "0",
                "perms": "system:menu:list",
                "icon": "tree-table",
                "children": [
                    {
                        "searchValue": null,
                        "createBy": null,
                        "createTime": "2022-03-07 10:53:29",
                        "updateBy": null,
                        "updateTime": null,
                        "remark": null,
                        "params": {},
                        "menuId": 1013,
                        "menuName": "菜单查询",
                        "parentName": null,
                        "parentId": 102,
                        "orderNum": 1,
                        "path": "",
                        "component": "",
                        "query": "",
                        "isFrame": "1",
                        "isCache": "0",
                        "menuType": "F",
                        "visible": "0",
                        "status": "0",
                        "perms": "system:menu:query",
                        "icon": "#"
                    }
                ]
            },
            {
                "searchValue": null,
                "createBy": null,
                "createTime": "2022-03-07 10:53:29",
                "updateBy": null,
                "updateTime": null,
                "remark": null,
                "params": {},
                "menuId": 107,
                "menuName": "通知公告",
                "parentName": null,
                "parentId": 1,
                "orderNum": 8,
                "path": "notice",
                "component": "system/notice/index",
                "query": "",
                "isFrame": "1",
                "isCache": "0",
                "menuType": "C",
                "visible": "0",
                "status": "0",
                "perms": "system:notice:list",
                "icon": "message",
                "children": [
                    {
                        "searchValue": null,
                        "createBy": null,
                        "createTime": "2022-03-07 10:53:29",
                        "updateBy": null,
                        "updateTime": null,
                        "remark": null,
                        "params": {},
                        "menuId": 1036,
                        "menuName": "公告查询",
                        "parentName": null,
                        "parentId": 107,
                        "orderNum": 1,
                        "path": "#",
                        "component": "",
                        "query": "",
                        "isFrame": "1",
                        "isCache": "0",
                        "menuType": "F",
                        "visible": "0",
                        "status": "0",
                        "perms": "system:notice:query",
                        "icon": "#"
                    }
                ]
            }
        ]
    },
    {
        "searchValue": null,
        "createBy": null,
        "createTime": "2022-03-07 10:53:29",
        "updateBy": null,
        "updateTime": null,
        "remark": null,
        "params": {},
        "menuId": 4,
        "menuName": "若依官网",
        "parentName": null,
        "parentId": 0,
        "orderNum": 4,
        "path": "http://ruoyi.vip",
        "component": null,
        "query": "",
        "isFrame": "0",
        "isCache": "0",
        "menuType": "M",
        "visible": "0",
        "status": "0",
        "perms": "",
        "icon": "guide"
    }
]

三.角色

3.1 角色表结构
CREATE TABLE `sys_role` (
  `role_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '角色ID',
  `role_name` varchar(30) NOT NULL COMMENT '角色名称',
  `role_key` varchar(100) NOT NULL COMMENT '角色权限字符串',
  `role_sort` int(4) NOT NULL COMMENT '显示顺序',
  `data_scope` char(1) DEFAULT '1' COMMENT '数据范围（1：全部数据权限 2：自定数据权限 3：本部门数据权限 4：本部门及以下数据权限）',
  `menu_check_strictly` tinyint(1) DEFAULT '1' COMMENT '菜单树选择项是否关联显示',
  `dept_check_strictly` tinyint(1) DEFAULT '1' COMMENT '部门树选择项是否关联显示',
  `status` char(1) NOT NULL COMMENT '角色状态（0正常 1停用）',
  `del_flag` char(1) DEFAULT '0' COMMENT '删除标志（0代表存在 2代表删除）',
  `create_by` varchar(64) DEFAULT '' COMMENT '创建者',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  `update_by` varchar(64) DEFAULT '' COMMENT '更新者',
  `update_time` datetime DEFAULT NULL COMMENT '更新时间',
  `remark` varchar(500) DEFAULT NULL COMMENT '备注',
  PRIMARY KEY (`role_id`)
) ENGINE=InnoDB AUTO_INCREMENT=101 DEFAULT CHARSET=utf8mb4 COMMENT='角色信息表';
3.2 在system模块中编写角色业务层接口ISysRoleService及实现类以及Mapper层，在admin模块中编写角色控制层SysRoleController。在common模块中编写实体类SysRole。
/**
 * 角色业务层
 */
public interface ISysRoleService {
}

/**
 * 角色表 数据层
 */
public interface SysRoleMapper {
}

/**
 * 角色 业务层处理
 */
@Service
public class SysRoleServiceImpl implements ISysRoleService {
    @Autowired
    private SysRoleMapper roleMapper;
}

/**
 * 角色信息
 */
@RestController
@RequestMapping("/system/role")
public class SysRoleController extends BaseController {
    @Autowired
    private ISysRoleService roleService;
}

/**
 * 角色表 sys_role
 */
public class SysRole extends BaseEntity {
    private static final long serialVersionUID = 1L;
    //角色ID
    private Long roleId;
    //角色名称
    private String roleName;
    //角色权限字符串
    private String roleKey;
    //角色排序(显示顺序)
    private String roleSort;
    //数据范围（1：所有数据权限；2：自定义数据权限；3：本部门数据权限；4：本部门及以下数据权限；5：仅本人数据权限）
    private String dataScope;
    //菜单树选择项是否关联显示（ 0：父子不互相关联显示 1：父子互相关联显示）
    private boolean menuCheckStrictly;
    //部门树选择项是否关联显示（0：父子不互相关联显示 1：父子互相关联显示 ）
    private boolean deptCheckStrictly;
    //角色状态（0正常 1停用）
    private String status;
    //删除标志（0代表存在 2代表删除）
    private String delFlag;
    //备注
    private String remark;
    //*************************以下字段为非数据库字段***************
    //用户是否存在此角色标识 默认不存在
    private boolean flag = false;
    //菜单id数组
    private Long[] menuIds;
	//部门id数组（数据权限）
    private Long[] deptIds;
    //.....省略getter和setter方法
}

四.新建角色时获取菜单树下拉框

在这里插入图片描述

4.1 在SysMenuController中添加treeselect方法，重点是menuService.buildMenuTreeSelect构建树结构。在common模块中新增TreeSelect树结构实体类。
    /**
     * 获取菜单下拉树列表
     */
    @GetMapping("/treeselect")
    public AjaxResult treeselect(SysMenu menu) {
        SysUser sysUser = new SysUser();
        sysUser.setUserName("admin");
        sysUser.setUserId(1L);
        List<SysMenu> menus = menuService.selectMenuList(menu, sysUser);
        return AjaxResult.success(menuService.buildMenuTreeSelect(menus));
    }

/**
 * Treeselect树结构实体类
 */
public class TreeSelect implements Serializable {
    private static final long serialVersionUID = 1L;
    //节点ID
    private Long id;
    //节点名称
    private String label;
    //子节点
    private List<TreeSelect> children;

    public TreeSelect() {
    }

    public TreeSelect(SysMenu menu) {
        this.id = menu.getMenuId();
        this.label = menu.getMenuName();
        //TreeSelect::new->构造方法引用->在每个SysMenu上调用构造器(map方法会为各个列表元素调用TreeSelect(SysMenu menu)构造器)。
        //如果有多个TreeSelect构造器，编译器会选择有一个SysMenu参数的构造器，因为它从上下文推导出这是在对一个SysMenu调用构造器
        this.children = menu.getChildren().stream().map(TreeSelect::new).collect(Collectors.toList());
    }
	//....省略getter和setter方法....
}

    /**
     * 构建前端所需要下拉树结构
     * @param menus 菜单列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildMenuTreeSelect(List<SysMenu> menus) {
        List<SysMenu> menuTrees = buildMenuTree(menus);
        return menuTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 构建前端所需要树结构
     * @param menus 菜单列表
     * @return 树结构列表
     */
    private List<SysMenu> buildMenuTree(List<SysMenu> menus) {
        List<SysMenu> returnList = new ArrayList<SysMenu>();
        List<Long> tempList = new ArrayList<Long>();
        for (SysMenu m : menus) {
            tempList.add(m.getMenuId());
        }
        for (Iterator<SysMenu> iterator = menus.iterator(); iterator.hasNext(); ) {
            SysMenu menu = iterator.next();
            // 如果是顶级节点, 遍历该父节点的所有子节点(顶级节点的parentId在sys_menu表中无记录)
            if (!tempList.contains(menu.getParentId())) {
                if (hasChild(menus, menu)) {
                    //如果有子节点,递归
                    recursionFn(menus, menu);
                }
                returnList.add(menu);
            }
        }
        if (returnList.isEmpty()) {
            returnList = menus;
        }
        return returnList;
    }

    /**
     * 递归列表
     * @param list
     * @param t
     */
    private void recursionFn(List<SysMenu> list, SysMenu t) {
        // 得到子节点列表
        List<SysMenu> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysMenu tChild : childList) {
            if (hasChild(list, tChild)) {
                recursionFn(list, tChild);
            }
        }
    }

    /**
     * 得到子节点列表
     */
    private List<SysMenu> getChildList(List<SysMenu> list, SysMenu t) {
        List<SysMenu> tlist = new ArrayList<SysMenu>();
        Iterator<SysMenu> it = list.iterator();
        while (it.hasNext()) {
            SysMenu n = it.next();
            if (n.getParentId().longValue() == t.getMenuId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysMenu> list, SysMenu t) {
        return getChildList(list, t).size() > 0;
    }
4.2 使用postman测试

在这里插入图片描述

五.修改角色时获取菜单树下拉框同时勾选展示角色对应的菜单

在这里插入图片描述

5.1 在SysMenuController中添加roleMenuTreeselect方法，重点勾选展示角色对应的菜单权限->menuService.selectMenuListByRoleId。
    /**
     * menus:菜单下拉树列表
     * checkedKeys:角色对应的菜单权限
     */
    @GetMapping(value = "/roleMenuTreeselect/{roleId}")
    public AjaxResult roleMenuTreeselect(@PathVariable("roleId") Long roleId) {
        SysUser sysUser = new SysUser();
        sysUser.setUserName("admin");
        sysUser.setUserId(1L);
        List<SysMenu> menus = menuService.selectMenuList(new SysMenu(), sysUser);
        AjaxResult ajax = AjaxResult.success();
        ajax.put("checkedKeys", menuService.selectMenuListByRoleId(roleId));
        ajax.put("menus", menuService.buildMenuTreeSelect(menus));
        return ajax;
    }

    /**
     * 根据角色ID查询菜单id列表
     * @param roleId 角色ID
     * @return 选中菜单id列表
     */
    @Override
    public List<Long> selectMenuListByRoleId(Long roleId) {
        SysRole role = roleMapper.selectRoleById(roleId);
        return menuMapper.selectMenuListByRoleId(roleId, role.isMenuCheckStrictly());
    }

<select id="selectMenuListByRoleId" resultType="Long">
		select m.menu_id
		from sys_menu m
		left join sys_role_menu rm on m.menu_id = rm.menu_id
		where rm.role_id = #{roleId}
		<!-- 菜单树选择项是否关联显示:与前端相关 -->
		<if test="menuCheckStrictly">
			and m.menu_id not in (select m.parent_id from sys_menu m inner join sys_role_menu rm on m.menu_id = rm.menu_id and rm.role_id = #{roleId})
		</if>
		order by m.parent_id, m.order_num
	</select>
5.2 使用postman测试

在这里插入图片描述

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