阻止路由跳转，以及路由重定向

在main.js 文件中
 1 import router from './router'
 2 router.beforeEach((to, from, next) => {
 3   // 阻止路由跳转
 4   if (满足阻止条件时) {
 5       next(false)
 6       return false
 7   }
 8   // 如果传入的url中有token，则不必跳转登录页
 9   if (window.location.href.indexOf('token') > -1 && window.location.href.indexOf('?') > -1 && (router.mode === 'hash' || router.mode === 'history')) {
10       let params = ''
11       if (router.mode === 'hash') {
12         params = window.location.href.split('#')[1]
13         params = params.split('?')[1]
14       } else {
15         params = window.location.href.split('?')[1]
16       }
17       let paramsArray = params.split('&')
18       let query = Object.create(null)
19       paramsArray.forEach(elem => {
20         let e = elem.split('=')
21         query[e[0]] = e[1]
22       })
23       store.commit('userInfo', query)
24       $axios.defaults.headers.Authorization = 'Bearer ' + query.token // 防止登录成功token还是undefined
25       next()
26   } else if (to.path === '/login' || store.state.userInfo.token) {
27     next()
28   } else {
29     next('/login')
30   }
31   return false
32 })