VUE動態路由頁面掛載

先定義好路由，包括常頁面路由和需要權限的路由數組

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
import Layout from '@/layout'
export const StaticRouterMap = [
  {
    path: '/login',
    name: 'Login',
    component: () => import('@/views/login/index'),
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [{
      path: 'dashboard',
      name: 'Home',
      component: () => import('@/views/dashboard/index'),
      meta: { title: '首頁', icon: 'dashboard' }
    }]
  }
]
export const AsyncRouterMap = []
const createRouter = () =>
  new Router({
    scrollBehavior: () => ({ y: 0 }),
    routes: StaticRouterMap
  })
const router = createRouter()
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}
export default router

第二步和後臺溝通返回的數據結構樣式

第三步解析後臺數據

/**
 * 生成路由
 * @param {Array} routerlist 格式化路由
 * @returns
 */
export function addRouter(routerlist) {
  const router = []
  try {
    routerlist.forEach(e => {
      if (e.path !== 'button') {
        let e_new = {
          path: e.redirect,
          name: e.path.split('/')[e.path.split('/').length - 1],
          redirect: e.path,
          component: () => e.path === 'layout' ? import('@/layout') : import('@/layout')
        }
        if (e.children) {
          const children = addRouterchild(e.children)
          // 保存權限
          e_new = { ...e_new, children: children }
        }
        if (e.path) {
          e_new = { ...e_new, redirect: e.path }
        }
        if (e.path) {
          e_new = { ...e_new, alwaysShow: true }
        }
        e_new = { ...e_new, meta: { title: e.title }}
        router.push(e_new)
      }
    })
  } catch (error) {
    console.error(error)
    return []
  }
  return router
}

export function addRouterchild(routerlist) {
  const router = []
  try {
    routerlist.forEach(e => {
      if (e.path !== 'button') {
        let e_new = {
          path: e.redirect,
          name: e.path.split('/')[e.path.split('/').length - 1],
          component: (resolve) => require([`@/views${e.path}`], resolve)
        }
        e_new = { ...e_new, meta: { title: e.title }}
        router.push(e_new)
      }
    })
  } catch (error) {
    console.error(error)
    return []
  }
  return router
}

第四步在permission.js文件對每次的刷新做判斷

/*
 * @Author: your name
 * @Date: 2020-03-21 08:29:57
 * @LastEditTime: 2020-03-21 09:09:43
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: /vue-element-asyncLogin/src/permission.js
 */
import router from './router'
import store from './store'
import user from './store/modules/user'
import { getToken, removeToken } from './utils/auth'
import NProgress from 'nprogress' // Progress 進度條
import 'nprogress/nprogress.css' // Progress 進度條樣式
import { Message } from 'element-ui'
import Cookies from 'js-cookie'
import { addRouter } from './utils/addRouter'
import request from '@/utils/request'
const whiteList = ['/login']
router.beforeEach((to, from, next) => {
  NProgress.start()
  if (Cookies.get('Authorization')) {
    // 判斷cookice是否存在 不存在即爲未登錄
    if (to.path !== '/login') {
      if (user.state.init) {
        // 獲取了動態路由 data一定true,就無需再次請求 直接放行
        next()
      } else {
        // data爲false,一定沒有獲取動態路由,就跳轉到獲取動態路由的方法
        gotoRouter(to, next)
      }
    } else {
      Message({ message: '您已經登錄', type: 'info' })
      next('/')
    }
  } else {
    if (whiteList.indexOf(to.path) !== -1) {
      // 免登陸白名單 直接進入
      next()
    } else {
      if (to.path !== '/login') {
        // 重定向到登錄頁面 不能這麼寫 因爲假如之前的角色是 管理員頁面 後又登陸了非管理員 重定向的頁面就可能不存在,就會導致404
        // next(`/login?redirect=${to.path}`)
        next('/login')
      } else {
        next()
      }
    }
  }
})

router.afterEach((to, from) => {
  NProgress.done() // 結束Progress
})
function getRouter() {
  return request({
    url: '/myLoginForm?username=' + 'choshim ' + '&password=' + '123456',
    method: 'post'
  })
  // return p
}
function gotoRouter(to, next) {
  getRouter() // 獲取動態路由的方法
    .then(res => {
      const asyncRouter = addRouter(res.menuList) // 進行遞歸解析
      // store.dispatch('user/setroles', res.data.permit)
      return asyncRouter
    })
    .then(asyncRouter => {
      // 後置添加404頁面,防止刷新404
      asyncRouter.push({
        path: '*',
        redirect: '/404',
        hidden: true
      })
      router.addRoutes(asyncRouter) // vue-router提供的addRouter方法進行路由拼接
      console.log(asyncRouter, '拼接後')
      store.dispatch('user/setRouterList', asyncRouter) // 存儲到vuex
      // store.dispatch('user/GetInfo')
      store.commit('user/set_init', true)
      next({ ...to, replace: true }) // hack方法 確保addRoutes已完成
    })
    .catch(e => {
      console.log(e)
      removeToken()
    })
}

第五步在登錄接口進行路由拼接

// import { login, logout, getInfo } from '@/api/user'
import { login, logout } from '@/api/user'
import Cookies from 'js-cookie'
import { getToken, setToken, removeToken } from '@/utils/auth'
import { resetRouter } from '@/router'
import { StaticRouterMap } from '@/router/index'
import md5 from 'js-md5'
const getDefaultState = () => {
  return {
    token: getToken(),
    name: '',
    avatar: '',
    roles: [],
    init: false, // 是否完成初始化 // 默認未完成
    routerList: [] // 動態路由
  }
}

const state = getDefaultState()

const mutations = {
  RESET_STATE: (state) => {
    Object.assign(state, getDefaultState())
  },
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
  set_router: (state, RouterList) => {
    console.log(RouterList, '==============RouterList2222==========')
    state.routerList = RouterList
  },
  set_init: (state, status) => {
    console.log(status, '2222222222222222')
    state.init = status
  }
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      login({ username: username.trim(), password: md5(password), rememberMe: true }).then(response => {
        const data = response
        commit('SET_TOKEN', data.token)
        setToken(data.token)
        commit('SET_NAME', data.userInfo.userName)
        Cookies.set('userInfo', data.userInfo)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },
  setRouterList({ commit }, routerList) {
    console.log(StaticRouterMap.concat(routerList), '=============routerList=================')
    commit('set_router', StaticRouterMap.concat(routerList)) // 進行路由拼接並存儲
  },
  // 存儲顆粒話權限
  setroles({ commit }, roleList) {
    commit('SET_ROLES', roleList)
  },

  // user logout
  logout({ commit, state }, userInfo) {
    return new Promise((resolve, reject) => {
      logout(userInfo).then(() => {
        removeToken() // must remove  token  first
        resetRouter()
        commit('set_init', false)
        commit('RESET_STATE')
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      removeToken() // must remove  token  first
      commit('RESET_STATE')
      resolve()
    })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}

需要把拼接好的路由導出

const getters = {
  sidebar: state => state.app.sidebar,
  device: state => state.app.device,
  token: state => state.user.token,
  avatar: state => state.user.avatar,
  name: state => state.user.name,
  routerList: state => state.user.routerList //劃重點語句，少寫就不會渲染了
}
export default getters

最後的效果圖：

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