vue-admin-template 动态路由的示例

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-357941465
export 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permission
import 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 bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.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'
  ]),

<!-- 动态路由 -->
<sidebar-item v-for="route in permission_routes" :key="route.path" :item="route" :base-path="route.path" />

全部代码如下：

<template>
<div :class="{ 'has-logo': showLogo }">
  <logo v-if="showLogo" :collapse="isCollapse" />
  <el-scrollbar wrap-class="scrollbar-wrapper">
    <el-menu
      :default-active="activeMenu"
      :collapse="isCollapse"
      :background-color="variables.menuBg"
      :text-color="variables.menuText"
      :unique-opened="false"
      :active-text-color="variables.menuActiveText"
      :collapse-transition="false"
      mode="vertical"
    >
      <!-- <sidebar-item
        v-for="route in routes"
        :key="route.path"
        :item="route"
        :base-path="route.path"
      /> -->
      <sidebar-item
        v-for="route in permission_routes"
        :key="route.path"
        :item="route"
        :base-path="route.path"
      />
    </el-menu>
  </el-scrollbar>
</div>
</template>

<script>
import { mapGetters } from 'vuex'
import Logo from './Logo'
import SidebarItem from './SidebarItem'
import variables from '@/styles/variables.scss'

export default {
components: { SidebarItem, Logo },
computed: {
  ...mapGetters([
    // 动态路由 增加permission_routes
    'permission_routes',
    'sidebar',
  ]),
  routes() {
    return this.$router.options.routes
  },
  activeMenu() {
    const route = this.$route
    const { meta, path } = route
    // if set path, the sidebar will highlight the path you set
    if (meta.activeMenu) {
      return meta.activeMenu
    }
    return path
  },
  showLogo() {
    return this.$store.state.settings.sidebarLogo
  },
  variables() {
    return variables
  },
  isCollapse() {
    return !this.sidebar.opened
  },
},
}
</script>

关于vue-admin-template 动态路由的实现的文章就介绍至此，更多相关vue-admin-template 动态路由的实现内容请搜索编程宝库以前的文章，希望以后支持编程宝库！

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