如何解码 JWT 令牌?

问题描述

我不明白这个库是如何工作的.你能帮我吗?

I don't understand how this library works. Could you help me please ?

这是我的简单代码:

public void TestJwtSecurityTokenHandler()
    {
        var stream =
            "eyJhbGciOiJSUzI1NiJ9.eyJpc3MiOiJJU1MiLCJzY29wZSI6Imh0dHBzOi8vbGFyaW0uZG5zY2UuZG91YW5lL2NpZWxzZXJ2aWNlL3dzIiwiYXVkIjoiaHR0cHM6Ly9kb3VhbmUuZmluYW5jZXMuZ291di5mci9vYXV0aDIvdjEiLCJpYXQiOiJcL0RhdGUoMTQ2ODM2MjU5Mzc4NClcLyJ9";
        var handler = new JwtSecurityTokenHandler();

        var jsonToken = handler.ReadToken(stream);
    }

这是错误:

字符串需要采用紧凑的 JSON 格式，格式为:Base64UrlEncodedHeader.Base64UrlEndcodedPayload.OPTIONAL,Base64UrlEncodedSignature'.

The string needs to be in compact JSON format, which is of the form: Base64UrlEncodedHeader.Base64UrlEndcodedPayload.OPTIONAL,Base64UrlEncodedSignature'.

如果您将流复制到 jwt.io 网站，它可以正常工作:)

If you copy the stream in jwt.io website, it works fine :)

推荐答案

我找到了解决方案，我只是忘记投射结果了:

I found the solution, I just forgot to Cast the result:

var stream = "[encoded jwt]";  
var handler = new JwtSecurityTokenHandler();
var jsonToken = handler.ReadToken(stream);
var tokenS = jsonToken as JwtSecurityToken;

或者，没有演员表:

var token = "[encoded jwt]";  
var handler = new JwtSecurityTokenHandler();
var jwtSecurityToken = handler.ReadJwtToken(token);

我可以通过以下方式获得索赔:

I can get Claims using:

var jti = tokenS.Claims.First(claim => claim.Type == "jti").Value;

这篇关于如何解码 JWT 令牌?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！