Vue项目关于router.addRoutes 刷新白屏解决方案

直接贴代码
这是一个简单例子权限路由是Table
注意最后那个{ path: '*', redirect: '/404', hidden: true }
这个不能一开始就导入路由,要放到addRoutes里面.
如果一开始就导入的话,刷新页面,router会找不到动态路由Table组件,因为这个时候并没有添加进来,router会直接重定向404

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import Table from "../views/Table";


Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home
  },
  {
    path: '/about',
    name: 'About',
    // route level code-splitting
    // this generates a separate chunk (about.[hash].js) for this route
    // which is lazy-loaded when the route is visited.
    component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
  },
  // {
  //   path: '/table',
  //   name: 'Table',
  //   // route level code-splitting
  //   // this generates a separate chunk (about.[hash].js) for this route
  //   // which is lazy-loaded when the route is visited.
  //   component: () => import(/* webpackChunkName: "table" */ '../views/Table.vue')
  // }
  {
    path: '/404',
    component: () => import(/* webpackChunkName: "fail" */ '../views/404')
  },
  // {
  //   path: '*', redirect: '/404', hidden: true
  // }

]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})



router.beforeEach((to,from,next)=> {

  if (!router.getRoutes().find(item=>item.name==='Table')) {
    router.addRoutes([
          {
            path: '/table',
            name: 'Table',
            component:  (resolve) => require(['../views/Table.vue'], resolve)

          },
          {
            path: '*', redirect: '/404', hidden: true
          }
        ]
    )
    next({ ...to, replace: true })

  } else {
    next();

  }
})


export default router