vue-admin-template动态路由怎么实现

本篇内容介绍了"vue-admin-template动态路由怎么实现"的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

提供登录与获取用户信息数据接口

在api/user.js中

import request from '@/utils/request'const Api = {  TakeOut: '/student/students/takeOut/',  LoginIn: '/student/students/loginIn/',  StudentInfo:'/student/students/studentInfo/',}export function login(parameter) {  return request({    url: Api.LoginIn,    method: 'get',    params: parameter  })}export function getInfo(token) {  return request({    url: Api.StudentInfo,    method: 'get',    params: {'token':token}  })}export function logout() {  return request({    url: Api.TakeOut,    method: 'get'  })}

登录接口数据

{'code': 200, 'data': {'token': 'X-admin'}, 'message': "操作成功"}

退出接口数据

{'code': 200, 'data': 'success', 'message': "操作成功"}

详情接口数据

{    "code": 200,    "data": {        "avatar": "https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif",        "name": "黄晓果",        "roles": [            "editor"        ]    }}

改造router/index.js

import Vue from 'vue'import Router from 'vue-router'Vue.use(Router)/* Layout */import Layout from '@/layout'// 基础路由export const constantRoutes = [  {    path: '/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: 'Dashboard',      component: () => import('@/views/dashboard/index'),      meta: { title: '首页', icon: 'el-icon-menu' }    }]  },]/** * 动态路由 */export const asyncRoutes = [  {    path: '/studentinformation',    component: Layout,    children: [      {        path: 'index',        component: () => import('@/views/studentinformation/index'),        meta: { title: '学生信息', icon: 'el-icon-s-check' }      }    ]  },  {    path: '/lecturerinformation',    component: Layout,    children: [      {        path: 'index',        component: () => import('@/views/lecturerinformation/index'),        meta: { title: '讲师信息', icon: 'el-icon-s-custom', roles: ['editor'] }      }    ]  },  {    path: '/coursemanage',    component: Layout,    meta: { roles: ['admin'] },    children: [      {        path: 'index',        component: () => import('@/views/coursemanage/index'),        meta: { title: '课程管理', icon: 'el-icon-s-platform'}      }    ]  },  // 404 页面必须放置在最后一个页面  { path: '*', redirect: '/404', hidden: true }]const createRouter = () => new Router({  // mode: 'history', // require service support  scrollBehavior: () => ({ y: 0 }),  routes: constantRoutes})const router = createRouter()// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465export function resetRouter() {  const newRouter = createRouter()  router.matcher = newRouter.matcher // reset router}export default router

将动态显示的路由写在asyncRoutes 中并添加 roles ，例如meta: { roles: ['admin'] },

在store/modulds目录下添加permission.js

import { asyncRoutes, constantRoutes } from '@/router'/** * Use meta.role to determine if the current user has permission * @param roles * @param route */function hasPermission(roles, route) {  if (route.meta && route.meta.roles) {    return roles.some(role => route.meta.roles.includes(role))  } else {    return true  }}/** * Filter asynchronous routing tables by recursion * @param routes asyncRoutes * @param roles */export function filterAsyncRoutes(routes, roles) {  const res = []  routes.forEach(route => {    const tmp = { ...route }    if (hasPermission(roles, tmp)) {      if (tmp.children) {        tmp.children = filterAsyncRoutes(tmp.children, roles)      }      res.push(tmp)    }  })  return res}const state = {  routes: [],  addRoutes: []}const mutations = {  SET_ROUTES: (state, routes) => {    state.addRoutes = routes    state.routes = constantRoutes.concat(routes)  }}const actions = {  generateRoutes({ commit }, roles) {    return new Promise(resolve => {      const accessedRoutes = filterAsyncRoutes(asyncRoutes, roles)      commit('SET_ROUTES', accessedRoutes)      resolve(accessedRoutes)    })  }}export default {  namespaced: true,  state,  mutations,  actions}

修改store/modulds/user.js

import { login, logout, getInfo } from '@/api/user'import { getToken, setToken, removeToken } from '@/utils/auth'import { resetRouter } from '@/router'const getDefaultState = () => {  return {    token: getToken(),    name: '',    avatar: '',    roles: []  }}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  }}const actions = {  // user login  login({ commit }, userInfo) {    const { username, password } = userInfo    return new Promise((resolve, reject) => {      login({ username: username.trim(), password: password }).then(response => {        const { data } = response        commit('SET_TOKEN', data.token)        setToken(data.token)        resolve()      }).catch(error => {        reject(error)      })    })  },  // get user info  getInfo({ commit, state }) {    return new Promise((resolve, reject) => {      getInfo(state.token).then(response => {        const { data } = response        if (!data) {          return reject('验证失败，请重新登录')        }        const {roles, name, avatar } = data        commit('SET_ROLES', roles)        commit('SET_NAME', name)        commit('SET_AVATAR', avatar)        resolve(data)      }).catch(error => {        reject(error)      })    })  },  // user logout  logout({ commit, state }) {    return new Promise((resolve, reject) => {      logout(state.token).then(() => {        removeToken() // must remove  token  first        resetRouter()        commit('RESET_STATE')        commit('SET_ROLES', [])        resolve()      }).catch(error => {        reject(error)      })    })  },  // remove token  resetToken({ commit }) {    return new Promise(resolve => {      removeToken() // must remove  token  first      commit('RESET_STATE')      commit('SET_ROLES', [])      resolve()    })  }}export default {  namespaced: true,  state,  mutations,  actions}

添加roles: [] 保存权限列表 ，添加内容如下

const getDefaultState = () => {  return {    ...    roles: []  }}const mutations = {  ...  SET_ROLES: (state, roles) => {    state.roles = roles  }}  // get user info  getInfo({ commit, state }) {    return new Promise((resolve, reject) => {      getInfo(state.token).then(response => {        ...        const {roles, name, avatar } = data        commit('SET_ROLES', roles)        ...      }).catch(error => {        reject(error)      })    })  },  // user logout  logout({ commit, state }) {    return new Promise((resolve, reject) => {      logout(state.token).then(() => {        ...        commit('SET_ROLES', [])        ...      }).catch(error => {        reject(error)      })    })  },  // remove token  resetToken({ commit }) {    return new Promise(resolve => {      ...      commit('SET_ROLES', [])      ...    })  }}

在store/getters.js中添加roles

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,    //添加roles  roles: state => state.user.roles,  //动态路由  permission_routes: state => state.permission.routes,}export default getters

将permission添加到store/index.js中

import Vue from 'vue'import Vuex from 'vuex'import getters from './getters'import app from './modules/app'import settings from './modules/settings'import user from './modules/user'//添加permissionimport permission from './modules/permission'Vue.use(Vuex)const store = new Vuex.Store({  modules: {    app,    settings,    user,     //添加permission    permission  },  getters})export default store

最后修改根目录下的permission.js

import router, { constantRoutes } from './router'import store from './store'import { Message } from 'element-ui'import NProgress from 'nprogress' // progress barimport 'nprogress/nprogress.css' // progress bar styleimport { getToken } from '@/utils/auth' // get token from cookieimport getPageTitle from '@/utils/get-page-title'NProgress.configure({ showSpinner: false }) // NProgress Configurationconst whiteList = ['/login'] // no redirect whitelistrouter.beforeEach(async (to, from, next) => {  // start progress bar  NProgress.start()  // set page title  document.title = getPageTitle(to.meta.title)  // determine whether the user has logged in  const hasToken = getToken()  if (hasToken) {    if (to.path === '/login') {      // if is logged in, redirect to the home page      next({ path: '/' })      NProgress.done()    } else {      const hasRoles = store.getters.roles && store.getters.roles.length > 0      if (hasRoles) {        next()      } else {        try {          // get user info          // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']          const { roles } = await store.dispatch('user/getInfo')          console.log(roles)          // generate accessible routes map based on roles          const accessRoutes = await store.dispatch('permission/generateRoutes', roles)          // dynamically add accessible routes          router.options.routes = constantRoutes.concat(accessRoutes)          router.addRoutes(accessRoutes)                    // hack method to ensure that addRoutes is complete          // set the replace: true, so the navigation will not leave a history record          next({ ...to, replace: true })        } catch (error) {          // remove token and go to login page to re-login          await store.dispatch('user/resetToken')          Message.error(error || 'Has Error')          next(`/login?redirect=${to.path}`)          NProgress.done()        }      }    }  } else {    /* has no token*/    if (whiteList.indexOf(to.path) !== -1) {      // in the free login whitelist, go directly      next()    } else {      // other pages that do not have permission to access are redirected to the login page.      next(`/login?redirect=${to.path}`)      NProgress.done()    }  }})router.afterEach(() => {  // finish progress bar  NProgress.done()})

将数据绑定到nav导航栏上

在layout/components/sidebar/index.vue中

...mapGetters([      // 动态路由 增加permission_routes      'permission_routes',      'sidebar'    ]),  

全部代码如下：

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