在vue中如何获取token，并将token写进header

//根据api接口获取token
var 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('登录成功');
  let data = res.data;
  //根据store中set_token方法将token保存至localStorage/sessionStorage中，data["Authentication- 
  //Token"]，获取token的value值
  this.$store.commit('set_token', data["Authentication-Token"]);

if (this.$store.state.token) {
  this.$router.push('/')
} else {
  this.$router.replace('/login');
}

}).catch(error => {
  // this.$message.error(error.status)
  this.loading = false
  this.loginBtn = "登录"
  this.$message.error('账号或密码错误');
  // console.log(error)
})

 

 

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 = token        sessionStorage.token = token    },    del_token(state) {        state.token = ''        sessionStorage.removeItem('token')    }   }})

import Vue from 'vue'
import Router from 'vue-router'
import store from './store'

// 页面刷新时，重新赋值token
if (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)) {           //这里的requireAuth为路由中定义的                         
    meta:{requireAuth:true}，// 意思为：该路由添加该字段，表示进入该路由需要登陆的
    if (store.state.token) {
        next();
    } else {
        next({
            path: '/login',
            query: {redirect: to.fullPath}
        })
    }
  } else {
    next();
  }
})

 

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

import Vue from 'vue'
import Element from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
import store from './store'
import App from './App'
import router from './router'
import Axios from 'axios'

// 添加请求拦截器
Axios.interceptors.request.use(config => {
  // 在发送请求之前做些什么
  //判断是否存在token，如果存在将每个页面header都添加token
  if(store.state.token){
    config.headers.common['Authentication-Token']=store.state.token
  }

  return config;
}, error => {
  // 对请求错误做些什么
  return Promise.reject(error);
});

// http response 拦截器
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}//登录成功后跳入浏览的当前页面
    })
    break
  }
}
return Promise.reject(error.response.data)
});

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……………….完成以上步骤就可以了……………………..

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今天的文章在vue中如何获取token，并将token写进header分享到此就结束了，感谢您的阅读。