nuxt.js中间件实现拦截权限判断的方法

import Cookie from \'js-cookie\' //npm install js-cookie --save

data(){
  return{
   redirectURL:\'/\'
  }
},
mounted() {
   let rediretUrl = this.$route.query.ref;
   if (rediretUrl){
    this.redirectURL = rediretUrl
   }
  }

submitLogin(ev) {
    var _this = this;
    this.$refs.ruleForm2.validate((valid) => {
     if (valid) {
      _this.logining = true
      var sendData = {
       username: _this.ruleForm2.account,
       password: _this.ruleForm2.pass,
       is_remember: _this.isRemember
      };
      //登录操作
      _this.$https.post(\'login/index\', sendData).then(res => {
       if (res.status == 1) {
        //将服务端的token存入cookie当中
        Cookie.set(\'token\', res.data.token)
        //返回上一页
        _this.$router.push(_this.redirectURL)
       }else{
        _this.$message.warning(res.msg)
       }
      })
     } else {
      return false;
     }
    });
   },

import utils from \'~/utils/utils\'
 
export default function ({route, req, res, redirect}) {
 let isClient = process.client;
 let isServer = process.server;
 let redirectURL = \'/login\';
 var token, path
 //在服务端
 if (isServer) {
  let cookies = utils.getcookiesInServer(req)
  path = req.originalUrl;
  token = cookies.token ? cookies.token : \'\'
 }
 //在客户端判读是否需要登陆
 if (isClient) {
  token = utils.getcookiesInClient(\'token\')
  path = route.path;
 }
 if (path) {
  redirectURL = \'/login?ref=\' + encodeURIComponent(path)
 }
 //需要进行权限判断的页面开头
 if (!token) {
    redirect(redirectURL)
 }
}

import Cookie from \'js-cookie\'
export default {
 //获取服务端cookie
 getcookiesInServer:function (req) {
  let service_cookie = {};
  req && req.headers.cookie && req.headers.cookie.split(\';\').forEach(function (val) {
   let parts = val.split(\'=\');
   service_cookie[parts[0].trim()] = (parts[1] || \'\').trim();
  });
  return service_cookie;
 },
 //获取客户端cookie
 getcookiesInClient:function (key) {
  return Cookie.get(key) ? Cookie.get(key) : \'\'
 }
}

middleware: \'userAuth\',