request 请求拦截器，有token值则配置上token值

axios.interceptors.request.use(
config=>{
   if(token && config.url != "/login"){
      config.headers['Authentication'] = token
   }
   return config;
},
error=>{
   console.log(error);
   Promise.reject(error);
}

response 服务器响应拦截器，这里拦截401错误，并重新跳入登页重新获取token

axios.interceptors.response.use(
  response=>{
    const res=response.data;
    if(res.code != 200){
      return;
    }
    return response.data;
  },
  error=>{
    if(error.response && error.response.status === 401){
      const match = /.+[#]/g.exec(location.href);
      if(process.env.NODE_ENV === 'production'){
        location.href = '' //url
      } else {
        const url = match[0] + '/login';
        location.href = url;
      }
      return false;
    }
    return Promise.reject(error.response.data);
  }
)