vue 登錄路由判斷

 

 router.beforeEach((to, from, next) => {
  // alert(sessionStorage.getItem('accessToken'))
  //    console.log(to);
     if ((to.path!='/login')&&(!sessionStorage.getItem('accessToken') || sessionStorage.getItem('accessToken')=='undefined')) {
         next({
             path: '/login',
             // query: { redirect: to.fullPath }
         })
     } else {
         next()
     }
 })