[TestMethod]

        public void TestMethod1()

        {

            string Token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJMb2dpblR5cGUiOiLlvq7kv6HnmbvlvZUiLCJJc09uZSI6IkZhbHNlIiwiSUQiOiIxMDc2NDYyODY4OTQzMjEyNTQzIiwiUGhvbmUiOiIxMSIsIkVtYWlsIjoiMzMyMSIsIk9wZW5pZCI6IkJCIiwiTmFtZSI6IjEyMyIsIm5iZiI6MTU0Njc1MDQxOSwiZXhwIjoxNTQ2NzUyMjE5LCJpc3MiOiJUZXN0SXNzdWVyIiwiYXVkIjoiVGVzdEF1ZGllbmNlIn0._g3rfr2P3YEFRgKlxv_7DtnxkLq4CrfXBdEUHUDl9jc";

            /// 密匙

            string IssuerSigningKey = "AAAAAAAAAAAAAAAABBBBBBBBBVCCCCC==";

            /// 发行

            string ValidIssuer = "TestIssuer";

            /// 观众

            string ValidAudience = "TestAudience";

            var secretKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(IssuerSigningKey));

            var tokenValidationParams = new TokenValidationParameters()

            {

                ValidateLifetime = true,

                ValidateAudience = true,

                ValidateIssuer = true,

                ValidateIssuerSigningKey = true,

                ValidIssuer = ValidIssuer,

                ValidAudience= ValidAudience,

                IssuerSigningKey = secretKey,

            };

            var jwtTokenHandler = new JwtSecurityTokenHandler();

            var a = jwtTokenHandler.ValidateToken(Token, tokenValidationParams, out SecurityToken validated);

        }