技術棧:vuex + axios + localStorage + vue-router前端
// router.js { path: "/index", name: "index", component: resolve => require(['./index.vue'], resolve), meta: { requiresAuth: true } }
router.beforeEach((to, from, next) => { // matched的數組中包含$route對象的檢查元字段 // arr.some() 表示判斷該數組是否有元素符合相應的條件, 返回布爾值 if (to.matched.some(record => record.meta.requiresAuth)) { // 判斷當前是否有登陸的權限 if (!auth.loggedIn()) { next({ path: '/login', query: { redirect: to.fullPath } }) } else { next() } } else { next() // 確保必定要調用 next() } })
// http request 攔截器 axios.interceptors.request.use( config => { if (store.state.token) { // 判斷是否存在token,若是存在的話,則每一個http header都加上token config.headers.Authorization = `token ${store.state.token}`; } return config; }, err => { return Promise.reject(err); }); // http response 攔截器 axios.interceptors.response.use( response => { return response; }, error => { if (error.response) { switch (error.response.status) { case 401: // 返回 401 清除token信息並跳轉到登陸頁面 store.commit(types.LOGOUT); router.replace({ path: 'login', query: {redirect: router.currentRoute.fullPath} }) } } return Promise.reject(error.response.data) // 返回接口返回的錯誤信息 });
//login.vue methods: { login(){ if (this.token) { // 存儲在本地的localStograge中,可使用cookies/local/sessionStograge this.$store.commit(types.LOGIN, this.token) // 跳轉至其餘頁面 let redirect = decodeURIComponent(this.$route.query.redirect || '/'); this.$router.push({ path: redirect }) } } }
import Vuex from 'vuex'; import Vue from 'vue'; import * as types from './types' Vue.use(Vuex); export default new Vuex.Store({ state: { user: {}, token: null, title: '' }, mutations: { // 登陸成功將, token保存在localStorage中 [types.LOGIN]: (state, data) => { localStorage.token = data; state.token = data; }, // 退出登陸將, token清空 [types.LOGOUT]: (state) => { localStorage.removeItem('token'); state.token = null } } });
三者區別:vue