"JWT": { "Secret": "~!@#$%^&*()_+qwertyuiopasldkh[o51485421ajshk^%*)kasd", // 密钥 "Issuer": "kfjdhf", // 颁发者 "Audience": "kfjdhf", // 接收者 //"Expired": 30 // 过期时间(30min) }三、ConfigureServices注入jwt
#region 注册JWT //获取配置文件 var JWTConfig = Configuration.GetSection("JWT"); //生成密钥 var symmetricKeyAsbase64 = JWTConfig.GetValue("Secret"); var keyByteArray = Encoding.ASCII.GetBytes(symmetricKeyAsbase64); var signingKey = new SymmetricSecurityKey(keyByteArray); //认证参数 services.AddAuthentication("Bearer") .AddJwtBearer(o => { o.TokenValidationParameters = new TokenValidationParameters { ValidateIssuerSigningKey = true,//是否验证签名,不验证的画可以篡改数据,不安全 IssuerSigningKey = signingKey,//解密的密钥 ValidateIssuer = true,//是否验证发行人,就是验证载荷中的Iss是否对应ValidIssuer参数 ValidIssuer = JWTConfig.GetValue ("Iss"),//发行人 ValidateAudience = true,//是否验证订阅人,就是验证载荷中的Aud是否对应ValidAudience参数 ValidAudience = JWTConfig.GetValue ("Aud"),//订阅人 ValidateLifetime = true,//是否验证过期时间,过期了就拒绝访问 ClockSkew = TimeSpan.Zero,//这个是缓冲过期时间,也就是说,即使我们配置了过期时间,这里也要考虑进去,过期时间+缓冲,默认好像是7分钟,你可以直接设置为0 RequireExpirationTime = true, }; }); #endregion
(2).Configure启用
app.UseAuthentication();//jwt四、创建jwt帮助类
using Microsoft.Extensions.Configuration; using Microsoft.IdentityModel.Tokens; using System; using System.Collections.Generic; using System.IdentityModel.Tokens.Jwt; using System.Linq; using System.Security.Claims; using System.Text; namespace SystemAPi.JWT { public class JwtHelper { public JwtHelper(IConfiguration configuration) { Configuration = configuration; } ////// 配置属性 /// public IConfiguration Configuration { get; } ////// 生成Token /// ///public string GenerateToken(List claims) { var jwtConfig = Configuration.GetSection("Jwt"); //秘钥,就是标头,这里用Hmacsha256算法,需要256bit的密钥 var securityKey = new SigningCredentials(new SymmetricSecurityKey(Encoding.ASCII.GetBytes(jwtConfig.GetValue ("Secret"))), SecurityAlgorithms.HmacSha256); //Claim,JwtRegisteredClaimNames中预定义了好多种默认的参数名,也可以像下面的Guid一样自己定义键名. //ClaimTypes也预定义了好多类型如role、email、name。Role用于赋予权限,不同的角色可以访问不同的接口 //相当于有效载荷 List baseClaims = new List { new Claim(JwtRegisteredClaimNames.Iss,jwtConfig.GetValue ("Issuer")), new Claim(JwtRegisteredClaimNames.Aud,jwtConfig.GetValue ("Audience")), new Claim("Guid",Guid.NewGuid().ToString("D")), new Claim(ClaimTypes.Role,"admin"), }; claims = claims.Union (baseClaims).ToList ();//合并Claim,删除重复项目 SecurityToken securityToken = new JwtSecurityToken( signingCredentials: securityKey, expires: DateTime.Now.AddDays(1),//过期时间 claims: claims ); //生成jwt令牌 return new JwtSecurityTokenHandler().WriteToken(securityToken); } } }
五、测试登录成功把账户信息存进token
/// 登录 /// ///登录 [HttpGet] public ReturnJson login(string name, string pwd) { User data = bll.login(name, pwd); if (data!=null) { if (data.name == name && data.password == pwd) { Listclaims = new List () { new Claim(ClaimTypes.NameIdentifier, data.name), new Claim(ClaimTypes.Role,data.AdminId.ToString()), new Claim("AdminRole",data.AdminId.ToString()) }; string token=jwtHelper.GenerateToken(claims); return new ReturnJson ().Success(token); }; } return new ReturnJson().Fail(); }
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