任务36:应用Jwtbearer Authentication

任务36:应用Jwtbearer Authentication

 D:\MyDemos\jesse

 

新建项目:dotnet new webapi --name JwtAuthSample

 

 

VS2017运行项目:http://localhost:5429/api/values

 

 

 

using Microsoft.AspNetCore.Authorization;

[Authorize]

 

 

因为我本机安装的是asp.net core 2.2的项目,所以用VScode去dotnet run的方式运行不行,默认创建的api项目是https的

于是我改用VS2017去打开创建的项目:项目的属性 取消SSL

然后用VS运行项目:

加上authorize以后返回 500:

 

 

 

 

 

引入

using Microsoft.AspNetCore.Authentication.JwtBearer;
 

 

Startup.cs内加上这个middleware

 

新建文件夹Models并在里面创建类:

JwtSettings.cs

 

namespace JwtAuthSample{
    public class JwtSettings
    {
        //token是谁颁发的
        public string Issuer{get;set;}
        //token可以给哪些客户端使用
        public string Audience{get;set;}
        //加密的密钥
        public string SecretKey{get;set;}

    }
}

 

 

 

需要给jwt设置一些配置信息:

 

 "JwtSettings": {
    "Audience": "http://localhost:5000",
    "Issuer": "http://localhost:5000",
    "SecretKey": "Hello-Key"
  }

 

 

 

 services.Configure<JwtSettings>(Configuration);
 var jwtSettings=new JwtSettings();
 Configuration.Bind("JwtSettings",jwtSettings);

 

 

Challenge是验证的时候

 

上面是认证middleware的配置

 

 

下面是认证jwt middleware的配置

 

在这个命名空间内:using Microsoft.IdentityModel.Tokens; 有对称加密的一种方式:SymmetricSecurityKey

IssuerSigningKey=new SymmetricSecurityKey(这里的参数要用utf-8),所以要引入命名空间system.Text;

这样就完成了jwt的配置

    public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<JwtSettings>(Configuration.GetSection("JwtSettings"));

            var jwtSettings = new JwtSettings();
            Configuration.Bind("JwtSettings", jwtSettings);
            services.AddAuthentication(Options =>
            {
                Options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                Options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
            })
            .AddJwtBearer(o =>
            {
                o.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
                {
                    ValidIssuer = jwtSettings.Issuer,
                    ValidAudience = jwtSettings.Audience,
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtSettings.SecretKey))
                };
            });

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
        }

 

 

posted @ 2019-02-13 21:45  高山-景行  阅读(404)  评论(0编辑  收藏  举报