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This article "vue routing permissions and button permissions how to achieve" most people do not understand, so the editor summarized the following content, detailed, clear steps, with a certain reference value, I hope you can get something after reading this article, let's take a look at this "vue routing permissions and button permissions how to achieve" article.

One menu routing permission

1.1 Front-end routing configuration table

1.2 backend data return

1.3 get the data and save it to vuex

1.4 the purpose of flattening is to compare permissions when routing is skipped

/ / flattening method flatten (data) {return data.reduce ((arr, {name,id,resourceType,dimensionTypeCode,btnPermissions,path,children = [],}) = > arr.concat ([{name,id,resourceType,dimensionTypeCode,btnPermissions,path,},], this.flatten (children)), []);}

1.5 in el-menu, the code of the sidebar-item component that directly gets the data from vuex for rendering will not be posted.

/ / js part computed: {productMenuList () {if (this.$store.state.user.user.userMenu) {return this.$store.state.user.user.userMenu;}},}

1.6 router Jump Intercept judgment

Router.beforeEach ((to, _ from, next) = > {document.title = "background system -" + to.meta.title / / dynamic title if (whiteList.includes (to.path)) {next ();} else {if (storageLocal.getItem ("token")) {if (hasPermission (to, store.state.user.user.menuTile)) {next () } else {next ('/ error/404')}} else {next ({path: "/ login", query: {redirect: to.fullPath}) / / get whether there is a menu permission function hasPermission (router, accessMenu) {let menu = getMenuByPath (router.path, accessMenu) If (menu.path) {return true;} return false;}

1.7 getMenuBypath method

Here I compare path or name, as long as it is the only one in the route.

Export const getMenuByPath = function (path, accessMenu) {if (accessMenu) {let filter = accessMenu.filter (res = > {return res.path = = path;}) return filter.length > 0? Realization of two Button permissions in filter [0]: {}

2.1 the data returned by the backend or? That one.

2.2 encapsulate custom instructions and create a new hasPermissionbtn.js

Import router from'.. /.. / router'import store from'.. /.. / store' export default (Vue) = > {/ * * Custom button permissions instruction * / Vue.directive ('has', {mounted (el, binding) {/ / get user button permissions from configuration let path = router.currentRoute.value.path; let menu = getMenuByPath (path, store.state.user.user.menuTile) / / get button permission if (! Vue.config.globalProperties.$_has (binding.value, menu.btnPermissions)) {/ / remove mismatched elements el [XSS _ clean] .removeChild (el) / / el.setAttribute ("disabled", true)}},}) / / check permission method Vue.config.globalProperties.$_has = function (value) BtnPermissions) {let isExist = false / / A collection of buttons with permissions Let btnPermsArr = [] if (btnPermissions) {btnPermsArr = btnPermissions;} if (btnPermsArr.includes (value)) {isExist = true} return isExist}}

2.3 use of the permissions button

/ / v-has can be used on any element, such as div or el-table-column tag association. The above is about "how to achieve vue routing permissions and button permissions". I believe you all have some understanding. I hope the content shared by the editor will be helpful to you. If you want to learn more about the relevant knowledge, please follow the industry information channel.

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