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--- |
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title: 导航守卫 |
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title: 路由守卫 |
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lang: zn-CN |
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--- |
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# 导航守卫 |
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# 路由守卫 |
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Vue Antd Admin 使用 vue-router 实现路由导航功能,因此可以为路由配置一些守卫。 |
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我们统一把导航守卫配置在 router/guards.js 文件中。 |
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|
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## 前置守卫 |
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Vue Antd Admin 为每个前置导航守卫函数注入 to,from,next,options 四个参数: |
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* `to: Route`: 即将要进入的目标[路由对象](https://router.vuejs.org/zh/api/#%E8%B7%AF%E7%94%B1%E5%AF%B9%E8%B1%A1) |
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* `from: Route`: 当前导航正要离开的路由对象 |
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* `next: Function`: 一定要调用该方法来 resolve 这个钩子。执行效果依赖 next 方法的调用参数。详情查看 [Vue Router #导航守卫](https://router.vuejs.org/zh/guide/advanced/navigation-guards.html) |
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* `options: Object`: 应用配置,包含: {router, i18n, store, message},可根据需要扩展。 |
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如下,是登录拦截导航守卫的定义 |
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```js |
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const loginGuard = (to, from, next, options) => { |
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const {message} = options |
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if (!loginIgnore.includes(to) && !checkAuthorization()) { |
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message.warning('登录已失效,请重新登录') |
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next({path: '/login'}) |
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} else { |
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next() |
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} |
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} |
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``` |
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|
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## 后置守卫 |
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你也可以定义后置导航守卫,Vue Antd Admin 为每个后置导航函数注入 to,from,options 三个参数: |
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* `to: Route`: 即将要进入的目标[路由对象](https://router.vuejs.org/zh/api/#%E8%B7%AF%E7%94%B1%E5%AF%B9%E8%B1%A1) |
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* `from: Route`: 当前导航正要离开的路由对象 |
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* `options: Object`: 应用配置,包含: {router, i18n, store, message},可根据需要扩展。 |
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如下,是一个后置导航守卫的定义 |
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```js |
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const afterGuard = (to, from, options) => { |
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const {store, message} = options |
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// 做些什么 |
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message.info('do something') |
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} |
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``` |
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|
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## 导出守卫配置 |
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定义好导航守卫后,只需按照类别在 guard.js 中导出即可。分为两类,`前置守卫`和`后置守卫`。如下: |
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```js |
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export default { |
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beforeEach: [loginGuard, authorityGuard], |
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afterEach: [afterGuard] |
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} |
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``` |
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|
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:::details 点击查看完整的导航守卫配置 |
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```js |
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import {loginIgnore} from '@/router/index' |
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import {checkAuthorization} from '@/utils/request' |
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|
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/** |
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* 登录守卫 |
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* @param to |
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* @param form |
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* @param next |
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* @param options |
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*/ |
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const loginGuard = (to, from, next, options) => { |
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const {message} = options |
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if (!loginIgnore.includes(to) && !checkAuthorization()) { |
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message.warning('登录已失效,请重新登录') |
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next({path: '/login'}) |
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} else { |
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next() |
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} |
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} |
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|
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/** |
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* 权限守卫 |
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* @param to |
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* @param form |
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* @param next |
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* @param options |
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*/ |
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const authorityGuard = (to, from, next, options) => { |
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const {store, message} = options |
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const permissions = store.getters['account/permissions'] |
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const roles = store.getters['account/roles'] |
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if (!hasAuthority(to, permissions, roles)) { |
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message.warning(`对不起,您无权访问页面: ${to.fullPath},请联系管理员`) |
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next({path: '/403'}) |
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} else { |
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next() |
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} |
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} |
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|
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/** |
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* 后置守卫 |
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* @param to |
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* @param form |
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* @param options |
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*/ |
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const afterGuard = (to, from, options) => { |
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const {store, message} = options |
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// 做些什么 |
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message.info('do something') |
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} |
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|
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export default { |
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beforeEach: [loginGuard, authorityGuard], |
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afterEach: [afterGuard] |
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} |
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``` |
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::: |
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