vue项目中做权限的时候，使用vue-router自带的addRoutes来生成路由是比较好的，具体操作步骤

router/index.js

import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router);
// 不需要权限的部分路由
export const defaultRoutes = [{
 path: '/login',
 name: 'login',
 component: () => import('@/view/login.vue')
}];

// 全部路由
const router = new Router({
 routes: [
   ...defaultRoutes
 ]
});

export default router

// 登录组件
  methods: {
    login() {
     //  开发中这里用请求回来的数据代替，如果请求的数据格式与路有格式不一致，需要解析成路由格式才可以
        const list= [
          {
            path: '/',
            name: 'index',
            component: 'view/home',
            children: [
              {
                path: '/example-1',
                name: 'example1',
                meta: {
                  title: 'title1'
                },
                component: 'components/example-1'
              }, {
                path: '/example-2',
                name: 'example1',
                meta: {
                  title: 'title2'
                },
                component: 'components/example-2'
              }
            ]
          }
        ];
    
        this.$store.commit('SET_ROUTES', list);
        // 登录之后跳转
        this.$router.replace('/');
      }
  }

// store/index.js
import Vue from 'vue'
import Vuex from 'vuex'
import {setRoutes} from "../router/getRoutes"

Vue.use(Vuex);

export default new Vuex.Store({
  state: {
    routes: []
  },
  mutations: {
    SET_ROUTES(state, routes) {
      setRoutes(routes);
      state.routes = routes;
    }
  }
});

// router/getRoutes.js
import router from "./index";
// 导入默认的配置的静态路由
import { defaultRoutes } from "./index"

export const getRoutes= arr => {
  return arr.map(({path, name, component, meta, children}) => {
    const route = {
      path,
      name,
      meta: {
        ...meta,
        require: true 
      },
      component: () => import(`@/${component}.vue`)
    };
    if(children) {
      route.redirect = children[0].path;
      route.children = getAsyncRoutes(children);
    }
    return route;
  });
};

export const setRoutes = list=> {
  const routeList = getAsyncRoutes(list);
  router.addRoutes(routeList);
  // 路由 options 并不会随着 addRoutes 动态响应，所以要在这里进行设置
  router.options.routes = defaultRoutes.concat(routeList);
};