Question

我正在尝试使用ASP.NET Identity Core添加自定义配置文件详细信息。我尝试如下扩展IdentityUser类：

public class ApplicationUser : IdentityUser
{
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public int Age { get; set; }
}

这是我的ApplicationDbContext，它继承了IdentityDbContext：

public class ApplicationIdentityDbContext : IdentityDbContext
{
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseSqlServer("Data Source=.;Initial Catalog=TokenDatabase;Trusted_Connection=True;");
    }
}

这是我的startup.cs文件：

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)
        {
            // ===== Add our DbContext ========
            services.AddDbContext<ApplicationIdentityDbContext>();

            // ===== Add Identity ========
            services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddEntityFrameworkStores<ApplicationIdentityDbContext>()
                .AddDefaultTokenProviders();



            // ===== Add Jwt Authentication ========
            JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Clear(); // => remove default claims

            services
                .AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
                    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;

                })
                .AddJwtBearer(cfg =>
                {
                    cfg.RequireHttpsMetadata = false;
                    cfg.SaveToken = true;
                    cfg.TokenValidationParameters = new TokenValidationParameters
                    {
                        ValidIssuer = Configuration["JwtIssuer"],
                        ValidAudience = Configuration["JwtIssuer"],
                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["JwtKey"])),
                        ClockSkew = TimeSpan.Zero // remove delay of token when expire
                    };
                });

            services.AddSwaggerGen(x =>
            {
                x.SwaggerDoc("v1", new Info
                {
                    Title = "ASP NET .Identity Core Example"
                });

                var xmlFilePath = System.AppDomain.CurrentDomain.BaseDirectory + @"WebApiJwt.xml";
                x.IncludeXmlComments(xmlFilePath);
            });


            // ===== Add MVC ========
            services.AddMvc();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(
            IApplicationBuilder app, 
            IHostingEnvironment env,
            ApplicationIdentityDbContext dbContext
        )
        {
            // ===== Create tables ======
            dbContext.Database.Migrate();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }


            app.UseSwagger();
            app.UseSwaggerUI(x =>
            {
                x.SwaggerEndpoint("/swagger/v1/swagger.json", "Core API");
            });

            // ===== Use Authentication ======
            app.UseAuthentication();
            app.UseMvc();         
        }
   }

我在执行此操作时遇到2个问题：

首先，当我尝试添加迁移时，出现错误An error occurred while calling method 'BuildWebHost' on class 'Program'. Continuing without the application service provider. Error: There is already an object named 'AspNetRoles' in the database.

我无法使用自定义个人资料信息更新AspNetUsers，我尝试添加：

    // ===== Add Identity ========
    services.AddIdentity<ApplicationUser, IdentityRole>()
        .AddEntityFrameworkStores<ApplicationIdentityDbContext>()
        .AddDefaultTokenProviders();

类型为ApplicationUser的类型，但是AspNetUsers表不会更新这些多余的列。

Answer 1

简短地浏览，我注意到的第一件事是您应该使用Generic IdentityDbContext：

public class ApplicationIdentityDbContext : IdentityDbContext<ApplicationUser>

完全推荐的方案：

定义您的ApplicationUser类：

2.define上下文（我更喜欢这里不是硬编码连接字符串）：

public class ApplicationIdentityDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationIdentityDbContext (DbContextOptions<ApplicationIdentityDbContext> options): base(options)
    {
    }
}

在appsettings.json中定义连接字符串：

“ ConnectionStrings”：{ “ DefaultConnection”：“这里是您的连接字符串”}，

在ConfigureServices中，您应该添加：

    // ===== Add our DbContext ========
    services.AddDbContext<ApplicationIdentityDbContext>(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

    // ===== Add Identity ========
    services.AddIdentity<ApplicationUser, IdentityRole>()
        .AddEntityFrameworkStores<ApplicationIdentityDbContext>()
        .AddDefaultTokenProviders();

执行两个命令：

添加迁移NewMigrationName

更新数据库

为避免迁移错误，您可能会看到以下文章：

There is already an object named AspNetRoles in the database. (entity-framework-core)

There is already an object named 'AspNetRoles' in the database

https://github.com/aspnet/EntityFrameworkCore/issues/4649

Answer 2

如果数据库已初始化，则在使用迁移时注释掉Database.EnsureCreated();

迁移时出错-数据库中已经有一个名为“ AspNetRoles”的对象。（实体框架核心）

2 个答案:

迁移时出错-数据库中已经有一个名为“ AspNetRoles”的对象。 （实体框架核心）

2 个答案:

迁移时出错-数据库中已经有一个名为“ AspNetRoles”的对象。（实体框架核心）