不同用户登录看见不同菜单界面

Question

请问如果我要实现role = 1的时候加载对应主菜单user以及下方的子菜单，然后role = 2的时候加载对应主菜单admin以及下方的子菜单，这样应该要怎么写呢？可以在index的路由守卫里写吗？
我的前端菜单代码如下：

<el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i class="el-icon-location"></i>
              <span>{{item.title}}</span>
            </template>
            
            <el-menu-item :index="it.path" v-for="it in item.sList" :key="it.id" @click="savePath(it.path)">
              <template slot="title">
                <i class="el-icon-location"></i>
                <span>{{it.title}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
 

后端菜单相关代码如下：

public class MainMenu {
    private int id;
    private String title;
    private String path;
    private List<SubMenu> sList;
 
public class SubMenu {
    private int id;
    private String  title;
    private String path;
 
public List<MainMenu> getMenus();
 
 <resultMap id="menuMap" type="com.bishe.springboot.bean.MainMenu">
        <id column="id" property="id"/>
        <result column="title" property="title"/>
        <result column="path" property="path"/>
        <collection  property="sList" ofType="com.bishe.springboot.bean.SubMenu" javaType="java.util.List">
            <result column="sid" property="id"/>
            <result column="stitle" property="title"/>
            <result column="spath" property="path"/>
        </collection>
    </resultMap>
 
    <select id="getMenus" resultMap="menuMap">
        SELECT mm.*,sm.id as sid ,sm.title as stitle,sm.path as spath FROM
        mainmenu mm ,submenu sm WHERE mm.id = sm.mid;
    </select>
 
@RequestMapping("/menus")
    public String getAllMenus(){
        HashMap<String,Object> data = new HashMap<>();
        List<MainMenu> menus = menuDao.getMenus();
        if (menus!=null){
            data.put("menus",menus);
            data.put("flag",200);
        }else {
            data.put("flag",404);
        }
        String s = JSON.toJSONString(data);
        return s;
    }
 

router index.js代码如下：

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import login from '../views/login.vue'
import welcome from '../views/welcome.vue'
import user_manage from '../views/admin/user_manage.vue'
import worker_manage from "../views/admin/worker_manage.vue"
import info_manage from "../views/admin/info_manage.vue"
import apply_manage from "../views/admin/apply_manage.vue"
import donate_manage from "../views/admin/donate_manage.vue"
import in_manage from "../views/admin/in_manage.vue"
import out_manage from "../views/admin/out_manage.vue";
import stock_manage from "../views/admin/stock_manage.vue";
import instock from "../views/employee/instock.vue"
import outstock from "../views/employee/outstock.vue";
import stockflow from "../views/employee/stockflow.vue";
import iteminfo from "../views/user/iteminfo.vue";
import apply from "../views/user/apply.vue";
import donate from "../views/user/donate.vue"
import message from "../views/user/message.vue";
import message_worker from "../views/employee/message_worker.vue";
import message_admin from "../views/admin/message_admin.vue";

Vue.use(VueRouter)

const routes = [
  {
    path:"/",
    redirect:"/login"
  },
  {
    path: "/login",
    component: login
  },
  {
    path: '/Home',
    component: Home,
    redirect: "/welcome",
    children:[
      {path:'/welcome',component: welcome,},
      {path:'/userhome',component: welcome,},
      {path:'/workerhome',component: welcome,},
      {path:'/usermanage',component: user_manage,},
      {path:'/workermanage',component: worker_manage,},
      {path:'/infomanage',component: info_manage,},
      {path:'/applymanage',component: apply_manage,},
      {path:'/donatemanage',component: donate_manage,},
      {path:'/inmanage',component: in_manage,},
      {path:'/outmanage',component: out_manage,},
      {path:'/stockmanage',component: stock_manage,},
      {path:'/instock',component: instock,},
      {path:'/outstock',component: outstock,},
      {path:'/itemflow',component: stockflow,},
      {path:'/stock',component: stock_manage,},
      {path:'/iteminfo',component: iteminfo,},
      {path:'/apply',component: apply,},
      {path:'/donate',component: donate,},
      {path:'/message',component: message,},
      {path:'/messagemanage',component: message_admin,},
      {path:'/comment',component: message_worker,},
    ]
  },

]

const router = new VueRouter({
  routes
})

//路由导航守卫
router.beforeEach((to,from,next)=>{
  //to 将要访问
  //from 从哪访问
  //next 接着做
  if(to.path=='/login')return next();
  //获取user
  const userFlag = window.sessionStorage.getItem("user");
  if (!userFlag)return  next('/login');
  next();
})

export default router

Answer 1

您可以在路由守卫的 next() 函数中传递一个对象，该对象可以包含 path 和 query 等属性，用于指定用户的角色和需要加载的菜单。例如：

router.beforeEach((to, from, next) => {
  const userRole = window.sessionStorage.getItem('userRole');
  if (userRole === '1') {
    next({ path: '/userhome', query: { menu: 'user' } });
  } else if (userRole === '2') {
    next({ path: '/userhome', query: { menu: 'admin' } });
  } else {
    next('/login');
  }
});

然后，您可以使用 this.$route.query.menu 来获取 menu 参数，并根据不同的值来渲染不同的菜单和子菜单。

另外，您需要在后端根据用户的角色返回不同的菜单数据，例如：

public List<MainMenu> getMenusByRole(int role) {
  // 查询数据库，根据角色返回不同的菜单数据
}

最后，您可以在前端使用 axios 发送请求获取菜单数据，并将其存储在 vuex 中，以便在不同的组件中使用。