（一）使用 JWT-Decode
jwt-decode是一个小的浏览器库，用于帮助解码Base64Url编码的JWTs令牌。
周下载量 3,586,702IMPORTANT: This library doesn't validate the token, any well formed JWT can be decoded. You should validate the token in your server-side logic by using something like express-jwt, koa-jwt, Owin Bearer JWT, etc.
只要，符合规范的JWT都能解码（二）使用DEMO
import jwt_decode from "jwt-decode";
var token = "eyJ0eXAiO.../// jwt token";
var decoded = jwt_decode(token);
console.log(decoded);
/* prints:
* { foo: "bar",
*exp: 1393286893,
*iat: 1393268893}
*/
// decode header by passing in options (useful for when you need `kid` to verify a JWT):
var decodedHeader = jwt_decode(token, { header: true });
console.log(decodedHeader);
/* prints:
* { typ: "JWT",
*alg: "HS256" }
*/参考链接 1、jwt-decode
https://www.npmjs.com/package...
2、token在线解压地址
https://www.box3.cn/tools/jwt...
写在最后的话
学习路上，常常会懈怠 【Day|Day 77/100 前端如何解析Token为可读的内容（）】《有想学技术需要监督的同学嘛~》
https://mp.weixin.qq.com/s/Fy...
