技术实践
《Ant Design Pro后台管理》权限控制
Ant Design Pro 是一个企业级中后台前端/设计解决方案,以下是我在看源代码看到的,可以学习下

Ant Design Pro 是一个企业级中后台前端/设计解决方案,
以下是我在看源代码看到的,可以学习下
登录拦截
js
import router from './router'
import store from './store'
import storage from 'store'
import NProgress from 'nprogress' // progress bar
import '@/components/NProgress/nprogress.less' // progress bar custom style
import notification from 'ant-design-vue/es/notification'
import { setDocumentTitle, domTitle } from '@/utils/domUtil'
import { ACCESS_TOKEN } from '@/store/mutation-types'
import { i18nRender } from '@/locales'
NProgress.configure({ showSpinner: false }) // NProgress Configuration
const allowList = ['login', 'register', 'registerResult'] // no redirect allowList
const loginRoutePath = '/user/login'
const defaultRoutePath = '/dashboard/workplace'
router.beforeEach((to, from, next) => {
NProgress.start() // start progress bar
to.meta && typeof to.meta.title !== 'undefined' && setDocumentTitle(`${i18nRender(to.meta.title)} - ${domTitle}`)
/* has token */
if (storage.get(ACCESS_TOKEN)) {
if (to.path === loginRoutePath) {
next({ path: defaultRoutePath })
NProgress.done()
} else {
// check login user.roles is null
if (store.getters.roles.length === 0) {
// request login userInfo
store
.dispatch('GetInfo')
.then(res => {
const roles = res.result && res.result.role
// generate dynamic router
store.dispatch('GenerateRoutes', { roles }).then(() => {
// 根据roles权限生成可访问的路由表
// 动态添加可访问路由表
// VueRouter@3.5.0+ New API
store.getters.addRouters.forEach(r => {
router.addRoute(r)
})
// 请求带有 redirect 重定向时,登录自动重定向到该地址
const redirect = decodeURIComponent(from.query.redirect || to.path)
if (to.path === redirect) {
// set the replace: true so the navigation will not leave a history record
next({ ...to, replace: true })
} else {
// 跳转到目的路由
next({ path: redirect })
}
})
})
.catch(() => {
notification.error({
message: '错误',
description: '请求用户信息失败,请重试'
})
// 失败时,获取用户信息失败时,调用登出,来清空历史保留信息
store.dispatch('Logout').then(() => {
next({ path: loginRoutePath, query: { redirect: to.fullPath } })
})
})
} else {
next()
}
}
} else {
if (allowList.includes(to.name)) {
// 在免登录名单,直接进入
next()
} else {
next({ path: loginRoutePath, query: { redirect: to.fullPath } })
NProgress.done() // if current page is login will not trigger afterEach hook, so manually handle it
}
}
})
router.afterEach(() => {
NProgress.done() // finish progress bar
})
指令权限
js
import Vue from 'vue'
import store from '@/store'
/**
* Action 权限指令
* 指令用法:
* - 在需要控制 action 级别权限的组件上使用 v-action:[method] , 如下:
* <i-button v-action:add >添加用户</a-button>
* <a-button v-action:delete>删除用户</a-button>
* <a v-action:edit @click="edit(record)">修改</a>
*
* - 当前用户没有权限时,组件上使用了该指令则会被隐藏
* - 当后台权限跟 pro 提供的模式不同时,只需要针对这里的权限过滤进行修改即可
*
* @see https://github.com/vueComponent/ant-design-vue-pro/pull/53
*/
const action = Vue.directive('action', {
inserted: function (el, binding, vnode) {
const actionName = binding.arg
const roles = store.getters.roles
const elVal = vnode.context.$route.meta.permission
const permissionId = elVal instanceof String && [elVal] || elVal
roles.permissions.forEach(p => {
if (!permissionId.includes(p.permissionId)) {
return
}
if (p.actionList && !p.actionList.includes(actionName)) {
el.parentNode && el.parentNode.removeChild(el) || (el.style.display = 'none')
}
})
}
})
export default action
v-if 级别的权限判断
js
export const PERMISSION_ENUM = {
'add': { key: 'add', label: '新增' },
'delete': { key: 'delete', label: '删除' },
'edit': { key: 'edit', label: '修改' },
'query': { key: 'query', label: '查询' },
'get': { key: 'get', label: '详情' },
'enable': { key: 'enable', label: '启用' },
'disable': { key: 'disable', label: '禁用' },
'import': { key: 'import', label: '导入' },
'export': { key: 'export', label: '导出' }
}
/**
* <a-button v-if="$auth('form.edit')">Button</a-button>
* @param Vue
*/
function plugin (Vue) {
if (plugin.installed) {
return
}
!Vue.prototype.$auth && Object.defineProperties(Vue.prototype, {
$auth: {
get () {
const _this = this
return (permissions) => {
const [permission, action] = permissions.split('.')
const permissionList = _this.$store.getters.roles.permissions
return permissionList.find((val) => {
return val.permissionId === permission
}).actionList.findIndex((val) => {
return val === action
}) > -1
}
}
}
})
!Vue.prototype.$enum && Object.defineProperties(Vue.prototype, {
$enum: {
get () {
// const _this = this;
return (val) => {
let result = PERMISSION_ENUM
val && val.split('.').forEach(v => {
result = result && result[v] || null
})
return result
}
}
}
})
}
export default plugin