初始化项目

Services/Tool/TokenHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using JWT;
+using JWT.Algorithms;
+using JWT.Serializers;
+using Newtonsoft.Json;
+
+namespace Services.Tool
+{
+    /// <summary>
+    /// Token辅助类
+    /// 需要引用jwt包
+    /// </summary>
+    public class TokenHelper
+    {
+        //私钥
+        static string Private_key = "CWLCJLWQZYY";
+        //创建一个世界协调时间提供对象 utc时间协调时间
+       static IDateTimeProvider provider = new UtcDateTimeProvider();
+        //时间戳起点时间 
+        static DateTime timeEpoch = new DateTime(1970,1,1,0,0,0,DateTimeKind.Utc);
+        //序列化对象
+       static IJsonSerializer serializer = new JsonNetSerializer();
+        //编码序列化对象
+        static IBase64UrlEncoder encoder = new JwtBase64UrlEncoder();
+        //编码算法
+        static IJwtAlgorithm algorithm = new HMACSHA384Algorithm();
+        //jwt编码
+        static JwtEncoder jwtEncoder= new JwtEncoder(algorithm,serializer,encoder);
+        //验证对象
+        static IJwtValidator validator = new JwtValidator(serializer,provider);
+        //jwt解码
+        static JwtDecoder decoder = new JwtDecoder(serializer, validator, encoder, algorithm);
+        /// <summary>
+        /// 加密的数据键值对传入
+        /// </summary>
+        /// <param name="keys"></param>
+        /// <returns></returns>
+        public static string GetToken(Dictionary<string,object> keys,float day)
+        {
+            //荷载，负载,最重要的信息,token中保存的信息 keys
+            var now = provider.GetNow();
+            //获取当前时间距离时间戳的差秒
+            var epochSecons = Math.Round((now-timeEpoch).TotalSeconds);
+            keys.Add("exp",(epochSecons+3600)*24*day);//设置过期时间
+            //jwt同一加密
+            var token = jwtEncoder.Encode(keys,Private_key);
+            return token;
+        }
+        public static string CheckToken(string token)
+        {
+            try
+            {
+                //解码 tonken 私钥 验证是否过期 
+                //过期时间验证  系统默认起始时间为1970,1,1,0,0,0 如果验证过期需要保证起始时间一致
+                //要么手动验证过期,现在时间与起始时间的差值如果大于设置exp则过期
+                return   JsonConvert.DeserializeObject<Datainfo>(decoder.Decode(token, Private_key,verify: true)).data.ToString();//str数据转成Dictionary<string,object>类型即可
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+           
+        }
+        public class Datainfo {
+           public dynamic data { get; set; }
+            public dynamic exp { get; set; }
+        }
+    }
+}