vue动态设置路由权限的主要思路

之前看到网上有些动态设置路由的，但是跟目前的项目不是很匹配，就自己动手实现了一种。主要思路就是：

1.配置路由的时候绑定好id，可后端开发完成后，与后端同步id就行，这id唯一不变，根据此id可找到路由地址及icon。

const routerArr = [
 {
 path: \'\',
 name: \'\',
 component: () => import( /* webpackChunkName: \"strategiesMaintain\" */ \'@/components/Layout/Index\'),
 meta: {
 requireAuth: true,
 id: 1,
 icon: \'iconzhanghuguanli\',
 title: \'路由1\'
 },
 children: [{ 
 path: \'/verificationLog\',
 name: \'VerificationLog\',
 component: () => import( /* webpackChunkName: \"verificationLog\" */ \'@/views/auditManage/verificationLog\'),
 meta: {
 requireAuth: true,
 id: 101,
 icon: \'icon-disanfangyanzhengrizhi\',
 title: \'路由11\'
 }
 }, {
 path: \'/systemLog\',
 name: \'SystemLog\',
 component: () => import( /* webpackChunkName: \"systemLog\" */ \'@/views/auditManage/systemLog\'),
 meta: {
 requireAuth: true,
 id: 102,
 icon: \'icon-xitongcaozuorizhi\',
 title: \'路由12\'
 }
 }]
 }
];

export default routerArr;

2.设置本地路由与后端传来的路由的联系，主要是根据id绑定路由地址及iconClass

import routerModules from \"@/router/modules\";
import {http} from \'@/utils/http\'
import store from \'@/store\';
import { Message } from \'element-ui\'

const formateResData = (val) =>{ // 格式化路由数据
 const obj = {};
 const fn = (arr)=>{
  for(let i = 0,item;item = arr[i++];){
  obj[item[\'meta\'][\'id\']] = {
   path: item[\'path\'],
   iconClass: item[\'meta\'][\'icon\']
  };
  if(item.children && item.children.length > 0){
   fn(item.children);
  }
  }
 }
 fn(val);
 return obj;
};

const MAPOBJ = formateResData(routerModules);
const dealWithData = (navData) => { // 处理菜单数据
 let firstLink = \"\";
 const navIdArr = [];
 const fn = (arr) => {
  for (let i = 0,item;item = arr[i++];) {
  item[\'iconClass\'] = MAPOBJ[item.id].iconClass;
  item[\'linkAction\'] = MAPOBJ[item.id].path;
  navIdArr.push(item.id);
  if (!firstLink && !item.subMenu) { // 设置默认跳转
   firstLink = item[\'linkAction\'];
  }
  if (item.subMenu && item.subMenu.length > 0) {
   fn(item.subMenu);
  }
  }
 }
 fn(navData);
 return {navData,navIdArr,firstLink};
};

let navIds = [];

const getNav = async (to={},from={},next=()=>{})=>{ // 获取导航数据
 const {code,data} = await http(\"/menu/list\", {}, \"GET\"); // 获取菜单数据
 // const data = require(\"@/mock/api/menuData\"); // 使用mock数据
 const {navData,navIdArr,firstLink} = dealWithData(data);
 store.commit(\'setNavData\', navData);
 navIds = navIdArr;
 if(to.fullPath == \'/index\'){ // 从登录过来 或者是回首页
 next(firstLink);
 }else { // 刷新
 if(navIds.indexOf(to.meta.id) == -1){ // 后端没有返回该菜单
  Message.error(\'菜单不存在或者没有权限\');
  return;
 }
 next();
 }
}

export const setGuard = (to={},from={},next=()=>{}) =>{ // 设置权限
 if(navIds.length === 0){ // 还没有获取菜单数据
 getNav(to,from,next);
 }else { // 获取到菜单数据
 if(navIds.indexOf(to.meta.id) == -1){ // 后端没有返回该菜单
  Message.error(\'菜单不存在或者没有权限\');
  return;
 }
 next();
 }
}

3.在mainjs中引入配置

router.beforeEach((to, from, next) => {
 let token = wlhStorage.get(\"authorization\");
 if (to.path == \"/login\") {
 storage.clear();// 清空缓存
 next();
 } else {
 if (to.meta.requireAuth && token) { // 登陆
  setGuard(to,from,next);
 } else { // 没有登录
  next(\"/login\");
 }
 }
})

总结