vue路由权限和按钮权限的实现示例

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

<el-menu
  :default-active="activeMenu"
  :collapse="isCollapse"
  :unique-opened="false"
  :collapse-transition="false"
  mode="vertical"
>
 <sidebar-item
    v-for="(route,index) in productMenuList"
    :key="index"
    :item="route"
    :base-path="route.path"
  />
</el-menu>
 
//js部分
computed: {
  productMenuList() {
    if(this.$store.state.user.user.userMenu){
      return this.$store.state.user.user.userMenu;
    }     
  },
},

router.beforeEach((to, _from, next) => {
  document.title = "后台系统-" + to.meta.title // 动态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
        }
      })
    }
  }
})
//获取是否有当前跳转的菜单权限
function hasPermission(router, accessMenu) {
  let menu = getMenuByPath(router.path, accessMenu);
  if (menu.path) {
    return true;
  }
  return false;
}

export const getMenuByPath = function (path, accessMenu) {
    if (accessMenu) {
        let filter = accessMenu.filter(res => {
            return res.path == path;
        })
        return filter.length > 0 ? filter[0] : {}
    }
 
}

import router from '../../router'
import store from '../../store'
 
export default (Vue) => {
  /**自定义按钮权限指令 */
  Vue.directive('has', {
    mounted(el, binding) {
      //从配置获取用户按钮权限
      let path = router.currentRoute.value.path;
      let menu = getMenuByPath(path, store.state.user.user.menuTile);
      //获取按钮权限
      if (!Vue.config.globalProperties.$_has(binding.value, menu.btnPermissions)){
        //移除不匹配的元素
         el.parentNode.removeChild(el)
         // el.setAttribute("disabled",true)
       }
  },
})
 
//检查权限方法
Vue.config.globalProperties.$_has = function (value, btnPermissions) {
  let isExist = false
  //有权限的按钮集合；
   let btnPermsArr = []
    if (btnPermissions) {
      btnPermsArr = btnPermissions;
    }
    if (btnPermsArr.includes(value)) {
      isExist = true
    }
    return isExist
  }
}

//v-has可以使用在任何元素上，如div或者el-table-column标签
<el-button type="text" v-has="'env:account'">关联</el-button>