需要準(zhǔn)備的東西：Vue+axios+Vuex+Vue-router

1.在login.vue中通過發(fā)送http請(qǐng)求獲取token

//根據(jù)api接口獲取tokenvar url = this.HOST + "/session";this.$axios.post(url, {username: this.loginForm.username,password: this.loginForm.pass}).then(res => {// console.log(res.data);this.$message.success('登錄成功');let data = res.data;//根據(jù)store中set_token方法將token保存至localStorage/sessionStorage中，data["Authentication-Token"]，獲取token的value值this.$store.commit('set_token', data["Authentication-Token"]); if (store.state.token) {this.$router.push('/')console.log(store.state.token)} else {this.$router.replace('/login');} }).catch(error => {// this.$message.error(error.status)this.loading = falsethis.loginBtn = "登錄"this.$message.error('賬號(hào)或密碼錯(cuò)誤');// console.log(error) })

2.在store.js中對(duì)token狀態(tài)進(jìn)行監(jiān)管

import Vue from 'vue'import Vuex from 'vuex'  Vue.use(Vuex) export default new Vuex.Store({state:{token:''},mutations:{set_token(state, token) {state.token = tokensessionStorage.token = token},del_token(state) {state.token = ''sessionStorage.removeItem('token')}}})

3.在router/index.js中

// 頁(yè)面刷新時(shí)，重新賦值tokenif (sessionStorage.getItem('token')) {store.commit('set_token', sessionStorage.getItem('token'))} const router = new Router({mode: "history",routes}); router.beforeEach((to, from, next) => {if (to.matched.some(r => r.meta.requireAuth)) {   //這里的requireAuth為路由中定義的 meta:{requireAuth:true}，意思為：該路由添加該字段，表示進(jìn)入該路由需要登陸的if (store.state.token) {next();}else {next({path: '/login',query: {redirect: to.fullPath}})}}else {next();}})

4.在main.js中定義全局默認(rèn)配置：

Axios.defaults.headers.common['Authentication-Token'] = store.state.token;

5.在src/main.js添加攔截器

// 添加請(qǐng)求攔截器Axios.interceptors.request.use(config => {// 在發(fā)送請(qǐng)求之前做些什么//判斷是否存在token，如果存在將每個(gè)頁(yè)面header都添加tokenif(store.state.token){config.headers.common['Authentication-Token']=store.state.token} return config;}, error => {// 對(duì)請(qǐng)求錯(cuò)誤做些什么return Promise.reject(error);}); // http response 攔截器Axios.interceptors.response.use(response => { return response;},error => { if (error.response) {switch (error.response.status) {case 401:this.$store.commit('del_token');router.replace({path: '/login',query: {redirect: router.currentRoute.fullPath}//登錄成功后跳入瀏覽的當(dāng)前頁(yè)面})}}return Promise.reject(error.response.data)});

以上這篇在vue中獲取token,并將token寫進(jìn)header的方法就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持錯(cuò)新站長(zhǎng)站。