token失效解决办法

import jwt from "jsonwebtoken";
export const secure = 'abcd123xxxxxxxxxxxx'

// 解密获取用户信息
export const checkLogin = () => {
   const token = getToken();
   if (!token) return null;
   return jwt.decode(token, secure);
}
export const getToken = () => {
   return window.sessionStorage.getItem('token');
}
return window.sessionStorage.getItem('token');

结论：好用！