VUE实现token登录验证

import Vue from 'vue';
import Vuex from 'vuex';
 
Vue.use(Vuex);
 
export default new Vuex.Store({
  state: {
    token: localStorage.getItem('token') ? localStorage.getItem('token') : ''
  },
  mutations: {
    setToken (state,token) {
      state.token =token;
      localStorage.setItem("token",token.token);     //存储token
    },
    delToken (state) {
      state.token = '';
      localStorage.removeItem("token");    //删除token
    }
  }
})

<input type="text" v-model="username" placeholder="用户名" />
<input type="password" v-model="password" placeholder="密码"/>

<script>
  import { mapMutations } from 'vuex';
  export default {
    name: "managerLogin",
    data() {
      return {
        username:'',      //用户名
        password:'',      //密码
      };
    },
    methods:{
      ...mapMutations(['setToken']),
      login:function() {
        if (this.username === '' || this.password === '') {
          alert("账号或密码不能为空！");
        }
        else {
          //根据api接口获取token
          this.$ajax.get('http:///api/wx/Public/login', {
            params: {      //传入参数
              username: this.username, password: this.password, device_type: "mobile"
            }
          }).then(
            res => {
              console.log(res.data);
              if(res.data.code===1) {    //若code=1则验证成功
                this.setToken({token: res.data.data.token});    //store中的为token赋值方法
                this.$router.push('/managerHome');
              }
              else{
                alert(res.data.msg);   //弹出错误信息
              }
            }).catch(error => {
            alert('接口连接错误');
            console.log(error);
          });
 
        }
      }
  }
</script>

<script>
    import {mapMutations} from "vuex";
    export default {
      name: "manager_infor",
      methods:{
        ...mapMutations(['delToken']),
        exit:function(){
          this.delToken({token:''});
          this.$router.push('/managerLogin');
        }
      }
    }
</script>

router.beforeEach((to, from, next) => {
  if (to.path === '/managerLogin') {    //若要跳转的页面是登录界面
    next();     //直接跳转
  }
  else if (to.path === '/managerHome'){   //若要跳转的页面是个人界面
    let token = localStorage.getItem('token');    //获取本地存储的token值
    if (token===null||token===''){    //若token为空则验证不成功，跳转到登录页面
      next('/managerLogin');
    }
    else{           //不为空则验证成功
      next();
    }
  }
  else{
    next();
  }
});
 
export default router;

import axios from "axios";
import store from './store/main';
Vue.prototype.$ajax = axios
 
new Vue({
  el: '#app',
  router,
  store,     //store要加进来
  components: { App },
  template: '<App/>'
})
 
//请求拦截器
axios.interceptors.request.use(config => {
//判断是否存在token，如果存在将每个页面的header都添加token
  if(store.state.token){
    
    config.headers.common['XX-Token']=store.state.token   //此处的XX-Token要根据登录接口中请求头的名字来写
  }
 
  return config;
}, error => {
// 请求错误
  return Promise.reject(error);
});
 
//respone拦截器
axios.interceptors.response.use(
  response => {
    return response;
  },
  
  error => {  //默认除了2XX之外都为错误
    if(error.response){
      switch(error.response.status){
        case 401:
          this.$store.commit('delToken');
          router.replace({ //跳转到登录页面
            path: '/managerLogin',
            query: { redirect: router.currentRoute.fullPath } // 将跳转的路由path作为参数，登录成功后跳转到该路由
          });
      }
    }
    return Promise.reject(error.response);
  }
);