computed: {
      ...mapState({
        token: state => state.login.token,
        username: state => state.login.username,
        avatarUrl: state => state.login.avatarUrl,
        birthday: state => state.login.birthday,
        gender: state => state.login.gender,
        id: state => state.login.id,
        mobile: state => state.login.mobile,
      })
    },
    
    
store/login.js

const state = {
  username:getCookie("username"),
  avatarUrl:getCookie("avatarUrl"),
  birthday:getCookie("birthday"),
  gender:getCookie("gender"),
  id:getCookie("id"),
  mobile:getCookie("mobile"),
  token:getCookie("token"),
};
const mutations = {
  LOGIN(state,res){
    window.localStorage.clear();
    setCookie("token",res.data.token);
    setCookie("username",res.data.user.username);
    setCookie("avatarUrl",res.data.user.avatarUrl);
    setCookie("birthday",res.data.user.birthday);
    setCookie("gender",res.data.user.gender);
    setCookie("id",res.data.user.id);
    setCookie("mobile",res.data.user.mobile);
  },
}

如上，登录的时候我把返回的值存为cookie，可是我登录之后跳转的个人中心页面依然显示的是未登录的样子，只有刷新一下才可以显示登录之后的，该怎么监听？