vue中使用router全局守卫实现页面拦截的示例

//全局守卫
router.beforeEach((to, from, next)=> {
 let userId = store.state.loginInfo.id;
 //这里是对登录后的值进行判断，也可对token的值进行判断
 if (userId === '') {
  if (to.meta.requireAuth || to.name == null) {
  next({path: '/'})
  } else {
  next();
  }
 } else {
  //初始化动态路由方法
  initRouter(router, store); 
  next();
 }
 }
);

import axios from 'axios'
export const initRouter = (router,store)=>{
 if (store.state.routerList.length > 0) {
 return;
 }
 axios.get(' URL')
  .then((rest)=>{
  let routerList = [];
  if(rest.data.success){
  let routers = rest.data.body;
  routers.forEach(router=>{
   let {
    path,
    component,
    name,
   } = router
   let routerObj = {
    path:path,
    name:name,
    component(resolve){
    if (component.startsWith("index")) {
     require(['../components/' + component + '.vue'], resolve)
    }  
    
    },
    meta:{requireAuth:true} //是否是登录权限控制
   };
   routerList.push(routerObj);
   });
  //add到router中
  router.addRoutes(routerList); 
  //存储到vuex中
  store.commit('routerList', routerList); 

  }else{
   console.log(rest.data.error);
  }
 }).catch((error)=>{
  console.log(error);
 })
}