Question

我在CentO上部署了.net core 2.2 api。在我的工作区中，在Windows上，该api运行良好，但是当我尝试在CentOS上运行它时，会得到一个Null异常。

我认为问题出在JWT身份验证上，因为如果我尝试注释掉该配置，则api运行正常。但是有了它我得到了例外：

我得到的错误：

    [root@localhost ~]# /bin/dotnet /var/www/vhosts/prueba.com/prueba.dll
Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at prueba.Startup.ConfigureServices(IServiceCollection services)
--- End of stack trace from previous location where exception was thrown     ---
   at     Microsoft.AspNetCore.Hosting.ConventionBasedStartup.ConfigureServices(IServic    eCollection services)
   at     Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureApplicationServices()
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.Initialize()
   at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
   at prueba.Program.Main(String[] args) in         C:\Users\user\source\repos\prueba\prueba\Program.cs:line 17

我的启动类：

using AutoMapper;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;
using System.Text;

namespace prueba
{
    public class Startup
    {
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddCors();
        services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);


        // Auto Mapper Configurations
        services.AddSingleton(typeof(Startup));

        //// configure strongly typed settings objects
        var appSettingsSection = Configuration.GetSection("AppSettings");
        services.Configure<AppSettings>(appSettingsSection);

        var appSettings = appSettingsSection.Get<AppSettings>();
        var key = Encoding.ASCII.GetBytes(appSettings.Secret);
        services.AddAuthentication(x =>
        {
            x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
            x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
        }).AddJwtBearer(x =>
        {
            x.RequireHttpsMetadata = false;
            x.TokenValidationParameters = new TokenValidationParameters
            {
                // The signing key must match!
                //ValidateIssuerSigningKey = true,
                //ValidateAudience = false,
                //ValidateIssuer = false,
                //IssuerSigningKeys = new List<SecurityKey> { signingKey },
                // Validate the token expiry
                ValidateLifetime = false,
                RequireExpirationTime = false
            };
            x.SaveToken = true;
            x.TokenValidationParameters = new TokenValidationParameters
            {
                ValidateIssuerSigningKey = true,
                IssuerSigningKey = new SymmetricSecurityKey(key),
                ValidateIssuer = false,
                ValidateAudience = false
            };
        });

        //// configure DI for application services
        //services.AddScoped<IUserService, UserService>();

    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        // global cors policy
        app.UseCors(x => x
            .AllowAnyOrigin()
            .AllowAnyMethod()
            .AllowAnyHeader());

        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }

        app.UseHttpsRedirection();
        app.UseAuthentication();
        app.UseMvc();
    }
}

}

我认为此配置应该很好，因为当我在Visual Studio中运行它时，我可以发出一个令牌并与其连接，但无法使其在CentO中工作。顺便说一下，我的CentOs版本是7，并且我已经安装了.net core 2.2 sdk。

非常感谢您！

---------编辑---------------------

这是我的appsettings.json：

{
  "AppSettings": {
    "Secret": "ESTA_ES_MI_SECRET"
  },
  "Logging": {
    "LogLevel": {
      "Default": "Warning"
    }
  },
  "AllowedHosts": "*"
}

我检查了在编译项目时始终复制的选项。

我称呼我的项目的方式是： / bin / dotnet /var/www/vhosts/exchange.com/prueba.dll

在CentOS上部署的.net核心应用中的空引用异常jwt

0 个答案: