使用VueRouter的addRoutes方法实现动态添加用户的权限路由

举个例子：  角色A =>功能1     =>功能2     =>功能3       角色B =>功能1     =>功能4     =>功能5

//动态路由(所有角色的都在这里,我们都做好组件页面了所以我们一定有这个，防君子不防小人)export const dynamicRouter = [  { path: '/b', name: 'b', component: pageB },  { path: '/c', name: 'c', component: pageC },];//默认路由(无需登录就可以使用)const routes = [  { path: '/', redirect: '/login' },  { path: '/login', component: pageLogin},  { path: '/404', component: page404},  { path: '*', redirect: '/404' },];const router = new VueRouter({  mode: 'history',  routes, // (缩写) 相当于 routes: routes});

// vue 组件<li @click="login(['b'])"> 模拟用户1登录，权限['b']，跳转到页面B</li><li @click="login(['c'])"> 模拟用户2登录，权限['c']，跳转到页面B,(用户2没有页面B权限，强行进入会gun去页面404)</li>

// 登录模块---------------------------------------------------------import { mapActions } from "vuex";export default { methods: {  ...mapActions([   "set_roleRouterRules"  ]),  login(roleRouterRules) {   // 登录成功，vuex 存储角色路由   this.set_roleRouterRules(roleRouterRules);   // 跳转到动态注册B   this.$router.replace({ path: "/b" });  } }};// vuex 对应功能实现-----------------------------------------------// 引入第1步 定义的dynamicRouter import { dynamicRouter } from './router';// 私有变量state: {  isAddRoutes: false,  // 后端返回的原始数据默认存到 localStorage，每次初始化取出来  roleRouterRules: JSON.parse(localStorage.getItem('roleRouterRules')),},// 公共变量 => 派生私有变量getters: {  isAddRoutes: state => state.isAddRoutes,  // 根据 roleRouterRules 生成当前角色的动态路由配置数据（addRoutes方法可以直接使用的路由数组)  roleRouter: state => {    if (state.roleRouterRules) {      return dynamicRouter.filter(        router => state.roleRouterRules.indexOf(router.name) >= 0,      );    } else return null;  },},// 私有方法(同步) => 改变静态变量mutations: {  set_isAddRoutes: (state, data) => (state.isAddRoutes = data), // payload: true/false  set_roleRouterRules: (state, data) => (state.roleRouterRules = data), // payload: true/false},// 公共方法（可异步）=> 调用私有方法actions: {  set_isAddRoutes({ commit }, data) {    commit('set_isAddRoutes', data);  },  set_roleRouterRules({ commit }, data) {    // 保存到vuex    commit('set_roleRouterRules', data);    // 保存到 localStorage,当用户强制刷新浏览器时我们要使用这一份数据初始化 state.roleRouterRules    localStorage.setItem('roleRouterRules', JSON.stringify(data));  },}

import vuex from './vuex';router.beforeEach((to, from, next) => {  let path = to.redirectedFrom || to.path;  // 白名单 放行  if (whiteList.indexOf(path) >= 0) return next();  // 黑名单  if (!vuex.getters.roleRouter) return next({ path: '/login' });  if (!vuex.getters.isAddRoutes) {    console.log('path未注册,存在角色路由，立即注册尝试匹配');    router.addRoutes(vuex.getters.roleRouter);    vuex.dispatch('set_isAddRoutes', true);    next(path);  } else {    console.log('已注册过动态路由，尝试匹配');    next();  }});

exit() { localStorage.clear(); window.location.reload();}