.net core 3.1 jwt token授权

.net core 3.1 引入jwt 授权，在这篇文章“ASP.Net Core 3.1 中使用JWT认证” 已经做了总结，只是复制粘贴自己跑一遍

首先安装 Microsoft.AspNetCore.Authentication.JwtBearer

核心代码是这段：

public class AuthenticationService : IAuthenticateService

    {

        private readonly ITestService _testService;

        private readonly TokenManagement _tokenManagement;

        public AuthenticationService(ITestService testService, IOptions<TokenManagement> tokenManagement)

        {

            _testService = testService;

            _tokenManagement = tokenManagement.Value;

        }

        public bool IsAuthenticated(LoginRequestDTO request, out string token)

        {

            token = string.Empty;

            //此处做验证

            if (!_testService.IsValid(request))

                return false;

            var claims = new[]

            {

                new Claim(ClaimTypes.Name,request.Username)

            };

            var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_tokenManagement.Secret));

            var credentials = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);

            var jwtToken = new JwtSecurityToken(_tokenManagement.Issuer, _tokenManagement.Audience, claims, expires: DateTime.Now.AddMinutes(_tokenManagement.AccessExpiration), signingCredentials: credentials);

            token = new JwtSecurityTokenHandler().WriteToken(jwtToken); 

            return true; 

        }

    }

　　

可以结合request参数，在 _testService.IsValid(request) 接口做验证

LoginRequestDTO 类定义request传参

public class LoginRequestDTO
{
[Required]
[JsonProperty("username")]
public string Username { get; set; }

[Required]
[JsonProperty("password")]
public string Password { get; set; }
}

TokenManagement 类定义 jwt 相关参数

public class TokenManagement

    {

        [JsonProperty("secret")]

        public string Secret { get; set; } 

        [JsonProperty("issuer")]

        public string Issuer { get; set; } 

        [JsonProperty("audience")]

        public string Audience { get; set; } 

        [JsonProperty("accessExpiration")]

        public int AccessExpiration { get; set; } 

        [JsonProperty("refreshExpiration")]

        public int RefreshExpiration { get; set; }

    }

tokenManagement 配置在appsettings.json

"tokenManagement": {
"secret": "123456123456123456",
"issuer": "webapi.cn",
"audience": "WebApi",
"accessExpiration": 30,
"refreshExpiration": 60
},

此外，修改Startup.cs 文件

在ConfigService方法中增加这段代码

services.Configure<TokenManagement>(Configuration.GetSection("tokenManagement"));
var token = Configuration.GetSection("tokenManagement").Get<TokenManagement>();

services.AddAuthentication(x =>
{
x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(x =>
{
x.RequireHttpsMetadata = false;
x.SaveToken = true;
x.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(token.Secret)),
ValidIssuer = token.Issuer,
ValidAudience = token.Audience,
ValidateIssuer = false,
ValidateAudience = false
};
});

在Configure 方法中增加 这段授权代码

app.UseAuthentication();

最后，在要调用的方法中，添加属性 [Authorize]，就可以增加token验证了；也可以在控制器上添加，那么该控制器下所有接口都要验证。

ASP.Net Core 3.1 中使用JWT认证