使用 ASP.NET Core 封装的 JWT

一、用NuGet安装 ：Microsoft.AspNetCore.Authentication.JwtBearer

二、在appsetting中添加配置节点

"JWT": {
    "SigningKey": "",
    "ExpireSeconds": ""
  }

 public class JWTOptions
    {
        public string SigningKey { get; set; }
        public string ExpireSeconds { get; set; }
    }

　三、注册服务

//配置JWT
services.Configure<JWTOptions>(builder.Configuration.GetSection("JWT"));
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(x =>
    {
        var jwtOpt = builder.Configuration.GetSection("JWT").Get<JWTOptions>();
        byte[] keyBytes=Encoding.UTF8.GetBytes(jwtOpt.SigningKey);
        var secKey=new SymmetricSecurityKey(keyBytes);
        x.TokenValidationParameters = new()
        {
            ValidateIssuer = false,
            ValidateAudience = false,
            ValidateLifetime = false,
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = secKey
        };
    });

app.UseAuthentication();
app.UseAuthorization();