看看这个.我想这就是你要找的:

Take a look at this.I presume it's what you're looking for:

https://gist.github.com/stonetip/8745656

var tokenHandler = new JwtSecurityTokenHandler();

        var convertedSecret = EncodeSigningToken(ConfigurationManager.AppSettings["ClientSecret"]);

        // Set the expected properties of the JWT token in the TokenValidationParameters
        var validationParameters = new TokenValidationParameters()
        {
            AllowedAudience = ConfigurationManager.AppSettings["AllowedAudience"],
            ValidIssuer = ConfigurationManager.AppSettings["Issuer"],
            SigningToken = new BinarySecretSecurityToken(convertedSecret)
        };

        Thread.CurrentPrincipal = tokenHandler.ValidateToken(token, validationParameters);

        if (HttpContext.Current != null)
        {
            HttpContext.Current.User = Thread.CurrentPrincipal;
        }