1、store下新建一个js,或者直接使用user.js
代码语言:javascript复制import db from '@/utils/localstorage'
const state = {
permissions: db.get('PERMISSIONS') || [],
}
const mutations = {
SET_PERMISSION (state, val) {
db.save('PERMISSIONS', val)
state.permissions = val
},
}
export default {
namespaced: true,
state,
mutations,
actions
}
2、合适的位置接口获取权限信息,比如登录接口
代码语言:javascript复制####这里简化了代码######
function _queryPermissionList(to, next) {
return new Promise((resolve, reject) => {
queryPermissionList().then(res => {
let permissionsList = res.permissionList;
store.commit("user/SET_PERMISSION", permissionsList ? permissionsList : []);
resolve()
}).catch(err => {
reject(err)
})
})
}
3、定义按钮鉴权标签,这里采用插件的形式
代码语言:javascript复制// 定义一些和权限有关的 Vue指令
// 必须包含列出的所有权限,元素才显示
export const hasPermission = {
install(Vue) {
Vue.directive('hasPermission', {
bind(el, binding, vnode) {
const permissions = vnode.context.$store.state.user.permissions
const value = binding.value
let flag = true
for (const v of value) {
if (!permissions.includes(v)) {
flag = false
}
}
if (!flag) {
if (!el.parentNode) {
el.style.display = 'none'
} else {
el.parentNode.removeChild(el)
}
}
}
})
}
}
// 当不包含列出的权限时,渲染该元素
export const hasNoPermission = {
install(Vue) {
Vue.directive('hasNoPermission', {
bind(el, binding, vnode) {
const permissions = vnode.context.$store.state.user.permissions
const value = binding.value
let flag = true
for (const v of value) {
if (permissions.includes(v)) {
flag = false
}
}
if (!flag) {
if (!el.parentNode) {
el.style.display = 'none'
} else {
el.parentNode.removeChild(el)
}
}
}
})
}
}
// 只要包含列出的任意一个权限,元素就会显示
export const hasAnyPermission = {
install(Vue) {
Vue.directive('hasAnyPermission', {
bind(el, binding, vnode) {
const permissions = vnode.context.$store.state.user.permissions
const value = binding.value
let flag = false
for (const v of value) {
if (permissions.includes(v)) {
flag = true
}
}
if (!flag) {
if (!el.parentNode) {
el.style.display = 'none'
} else {
el.parentNode.removeChild(el)
}
}
}
})
}
}
4、安装插件,在main.js中
代码语言:javascript复制import { hasPermission, hasNoPermission, hasAnyPermission } from '@/utils/permissionDirect'
const Plugins = [
hasPermission,
hasNoPermission,
hasAnyPermission
]
Plugins.map((plugin) => {
Vue.use(plugin)
})
5、使用,如List.vue中
代码语言:javascript复制<el-button icon="el-icon-edit-outline" v-has-permission="['sys/user:edit']" title="编辑" size="mini" type="primary" plain @click="editItem(row)"/>
v-has-permission:是否含该权限 v-has-no-permission:是否不含该权限 v-has-any-permission:是否含该列出权限的任意一个