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这篇文章主要介绍了c#中token怎么用，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

token的存在意义

这是我初略了解的token的存在意义

用户使用用户名密码来请求服务器

服务器进行验证用户的信息

服务器通过验证发送给用户一个token

客户端存储token，并在每次请求时附送上这个token值

服务端验证token值，并返回数据

使用方法

先安装一个JWT，注意NetFramework的版本

创建一个工具类TokenInfo.cs

using JWT;using JWT.Algorithms;using JWT.Serializers;using System;using System.Collections.Generic;using System.Web;using System.Web.Script.Serialization;namespace ProjectLYG.Common{ public class TokenInfo { public TokenInfo() { UserName = "j"; Pwd = "123456"; } public string UserName { get; set; } public string Pwd { get; set; } } public class TokenHelper { public static string SecretKey = "bqsid123k12s0h2d3uhf493fh02hdd102h9s3h48ff";//这个服务端加密秘钥 属于私钥 private static JavaScriptSerializer myJson = new JavaScriptSerializer(); /// /// 生成Token /// /// /// public static string GenToken(TokenInfo M) { var payload = new Dictionary { {"UserName", M.UserName},//用于存放当前登录人账户信息 {"UserPwd", M.Pwd}//用于存放当前登录人登录密码信息 }; IJwtAlgorithm algorithm = new HMACSHA256Algorithm(); IJsonSerializer serializer = new JsonNetSerializer(); IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder(); IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder); return encoder.Encode(payload, SecretKey); } /// /// 验证Token /// /// public static string DecodeToken() { //获取request中的token string token = HttpContext.Current.Request.Headers["Authorization"]; //去掉前面的Bearer if (token != null && token.StartsWith("Bearer")) token = token.Substring("Bearer ".Length).Trim(); try { var json = GetTokenJson(token); TokenInfo info = myJson.Deserialize(json); return "Token is true"; } catch (TokenExpiredException) { return "Token has expired"; } catch (SignatureVerificationException) { return "Token has invalid signature"; } } public static string GetTokenJson(string token) { try { IJsonSerializer serializer = new JsonNetSerializer(); IDateTimeProvider provider = new UtcDateTimeProvider(); IJwtValidator validator = new JwtValidator(serializer, provider); IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder(); IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder); var json = decoder.Decode(token, SecretKey, verify: true); return json; } catch (Exception) { throw; } } }}

使用方法

//生成Token TokenInfo tokenInfo = new TokenInfo(); tokenInfo.Pwd = password; tokenInfo.UserName = tel; string token = TokenHelper.GenToken(tokenInfo); ........ //token验证 string tokenInfo = TokenHelper.DecodeToken(); ........

工具类已将返回的Request的token值提取出，无须传值

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