vue-element-template 设置权限管理配置文件 \ vue用户权限管理

最近使用vue-element-template模板做系统时，需要实现用户权限管理，通过后端传来的roles字段来判断不同用户的身份，不同用户显示不同的侧边栏，下面是配置方法：

0.需要配置的文件有：

src/router

src/store/modules/permission.js (没有就添加)

src/store/modules/user.js

src/store/index

src/permission.js

src/store/getters.js

1.首先修改 src/router中代码：

把需要权限的加在 asyncRoutes 里面，相应权限就用roles: ['admin']放不同的用户类型来控制。

constantRoutes里面放静态路由,所有人可见

具体参考下面代码：

import Vue from 'vue'
import Router from 'vue-router'
// 路由是个插件，需要use
Vue.use(Router)
// 引入layout组件，一级路由出口中，匹配layout组件
import Layout from '@/layout'


// 静态路由,所有人可见
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    // hidden为true表示在侧边栏不显示
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },

  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    // 二级路由
    children: [{
      path: 'dashboard',
      name: 'Dashboard',
      component: () => import('@/views/dashboard/index'),
      meta: { title: '首页', icon: 'dashboard' }
    }]
  },

  // 404 page must be placed at the end !!!
  { path: '*', redirect: '/404', hidden: true }
]



//相应权限人员可见
export const asyncRoutes = [
  {
    path:'/patentupload',
    component:Layout,
    name:'Patentupload',
    meta:{ title: '专利上传', icon: 'el-icon-s-promotion',roles: ['admin'] },
    children: [{
      path: 'singleupload',
      name: 'Singleupload',
      component: () => import('@/views/patentupload/singleload'),
      meta: { title: '单条专利上传',roles: ['admin'] }
    },
    {
      path: 'multipleload',
      name: 'Multipleload',
      component: () => import('@/views/patentupload/multipleload'),
      meta: { title: '多条专利上传',roles: ['admin'] }
    },
  ]  
  },

  {
    path:'/expertrate',
    component:Layout,
    name:'Expertrate',
    meta:{ title: '专家打分系统', icon: 'el-icon-notebook-2',roles: ['editor'] },
    children: [{
      path: 'unratedpatents',
      name: 'Unratedpatents',
      component: () => import('@/views/expertrate/unratedpatents'),
      meta: { title: '未打分专利',roles: ['editor'] }
    },
    {
      path: 'ratedpatents',
      name: 'Ratedpatents',
      component: () => import('@/views/expertrate/ratedpatents'),
      meta: { title: '已打分专利',roles: ['editor'] }
    },
    {
      path: 'rate',
      name: 'Rate',
      component: () => import('@/views/expertrate/rate'),
      meta: { title: '打分界面',roles: ['editor'] }
    },
  ]
  },
]


// 创建一个路由对象
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

2. src/store/modules/permission.js (没有就添加)

generateRoutes函数来控制你设置的每个用户的判断操作，如果有超过两个的用户就继续添加ifelse。代码如下：

import { asyncRoutes, constantRoutes } from '@/router'

// 筛选路由
// 匹配权限
function hasPermission( roles, route) {
    // 在路由上找的到 route.mate 和 route.mate.roles
    if (route.meta && route.meta.roles){
     return roles.some(role => route.meta.roles.includes(role))
    }else{
        return true
    }
}

// 通过递归过滤异步路由表

export function filterAsyncRoutes( routes, roles){
    // 装筛选出来的路由
    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) // 将过滤的路由和国定的路由存起来
    }
}

// 筛选
const actions = {
    generateRoutes({ commit }, roles){
        return new Promise(resolve =>{
            let accessedRoutes
            // 路由是否为 admin, 有直接全部显示
            if(roles.includes('admin')){
                accessedRoutes = filterAsyncRoutes(asyncRoutes, roles)
                // accessedRoutes = asyncRoutes || []
                console.log('走了这里1 ',accessedRoutes)
                console.log('asyncRoutes ',asyncRoutes)

            }else{
                // 过滤路由
                accessedRoutes = filterAsyncRoutes(asyncRoutes, roles)
                console.log('走了这里2 ')
            }
            commit('SET_ROUTES', accessedRoutes)
            resolve(accessedRoutes)
        })
    }
}

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

3.src/store/modules/user.js 代码如下：

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:[], //权限设置
    introduction:'', // 新增
  }
}

const state = getDefaultState()

const mutations = {
  RESET_STATE: (state) => {
    Object.assign(state, getDefaultState())
  },
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  // 新增
  SET_INTRODUCTION: (state, introduction) => { 
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  //权限设置
  SET_ROLES: (state, roles) => {
    state.roles = roles
  }

}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    // let result= await login({username:username.trim(),password:passwora});
    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('Verification failed, please Login again.')
        }

        // const { name, avatar } = data
        const {roles, name, avatar, introduction } = data//权限设置
        // 必须保证不是一个空的数组
        if(!roles || roles.length<=0 ){//权限设置
          reject('getInfo: roles must be a non-null array')//权限设置
        }//权限设置
        console.log(roles)//权限设置
        // 存储值
        commit('SET_NAME', name)
        commit('SET_ROLES', roles) //权限设置
        commit('SET_AVATAR', avatar)
        commit('SET_INTRODUCTION', introduction)//权限设置
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state }) {
    return new Promise((resolve, reject) => {
      logout(state.token).then(() => {
        commit('SET_TOKEN', '')//权限设置
        commit('SET_ROLES', []) //权限设置
        removeToken() // must remove  token  first
        resetRouter()
        commit('RESET_STATE')
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')//权限设置
      commit('SET_ROLES', []) //权限设置
      removeToken() // must remove  token  first
      commit('RESET_STATE')
      resolve()
    })
  }
}

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

4.src/store/index 代码如下：

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'
// 权限设置
import permission from './modules/permission'

Vue.use(Vuex)

const store = new Vuex.Store({
  modules: {
    app,
    settings,
    user,
    permission // 权限设置
  },
  getters
})

export default store

5.src/permission.js 代码如下：

// 引入路由器router
import router from './router'
// 引入仓库
import store from './store'
// 引入ele的提示组件
import { Message } from 'element-ui'
// 引入交互进度条
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
// 从cookie中获取token，登录了就有cookie
import { getToken } from '@/utils/auth' // get token from cookie
// 得到页面的title
import getPageTitle from '@/utils/get-page-title'

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

// 白名单，不需要登录就能进入的路由
const whiteList = ['/login'] // no redirect whitelist

// 全局前置路由守卫
router.beforeEach(async(to, from, next) => {
  //开启进度条
  NProgress.start()

  //给页面的title赋值
  document.title = getPageTitle(to.meta.title)

  // 从cookie中拿到token，有的话就放行，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 {
      // 获取用户信息
      // const hasGetUserInfo = store.getters.name
      const hasRoles = store.getters.roles && store.getters.roles.length > 0// 权限控制
      console.log('roles:',store.getters.roles)
      // if (hasGetUserInfo) {
      if (hasRoles) {
        console.log('执行了1')
        next()
      } else {
        console.log('执行了2')
        try {
          // get user info 重新获取用户信息
          // await store.dispatch('user/getInfo')
          // 权限控制
          const { roles } = await store.dispatch('user/getInfo')
          // 在角色权限基础上生成动态路由表
          const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
          console.log('accessRoutes:',accessRoutes)
          router.options.routes = store.getters.permission_routes 
          // 动态添加可访问路由
          router.addRoutes(accessRoutes)
          console.log('输出的store：',store)
          next({...to, replace: true })
          
          // next()

        } 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}`)
      // 关闭进度条
      NProgress.done()
    }
  }
})

// 全局后置路由守卫
router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})

6.src/store/getters.js：

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,
  // 权限设置
  roles: state => state.user.roles,
  permission_routes: state => state.permission.routes
}
export default getters

经过上面的配置，应该就可以完成权限管理了。如果有问题的话留言评论