asp.net core2 mvc 基础教程--ASP.NET Core Identity 入门

ASP.NET Core Identity

• 身份认证和授权系统
• 成员管理
• 默认使用 MSSQL
• 支持外部的 Provider

ASP.NET Core Identity 重点类

• UserManager<IdentityUser>：用户管理
• SignInManager<IdentityUser>：身份认证

 

 

public void ConfigureServices(IServiceCollection services)

{

    ...

    // 注册 IdentityDbContext

    services.AddDbContext<IdentityDbContext>(options =>

        options.UseSqlServer(_configuration.GetConnectionString("DefaultConnection"),

            b => b.MigrationsAssembly("Tutorial.Web")));


    // 注册 Identity 服务

    services.AddDefaultIdentity<IdentityUser>()

        .AddEntityFrameworkStores<IdentityDbContext>();


    // 配置 Identity

    services.Configure<IdentityOptions>(options =>

    {

        // Password settings.

        options.Password.RequireDigit = false; //需要数值

        options.Password.RequireLowercase = false;//需要小写字母

        options.Password.RequireNonAlphanumeric = false;//需要非数值类型

         options.Password.RequireUppercase = true; // 需要大写
         options.Password.RequiredLength = 6; //长度
         options.Password.RequiredUniqueChars = 1;//唯一字符

    });

}


public void Configure(

    IApplicationBuilder app,

    IHostingEnvironment env,

    ILogger<Startup> logger)

{

    ...

    app.UseAuthentication();


    app.UseMvc(builder =>

    {

        builder.MapRoute("Default", "{controller=Home}/{action=Index}/{id?}");

    });

}

注册：

[HttpPost]
public async Task<IActionResult> Register(RegisterViewModel registerViewModel)
{

    if (ModelState.IsValid)
    {
        var user = new IdentityUser
        {
            UserName = registerViewModel.UserName
        };


        var result = await _userManager.CreateAsync(user, registerViewModel.PassWord);
        if (result.Succeeded)
        {
            return RedirectToAction("Index", "Home");
        }
        return View(registerViewModel);
    }

    return View(registerViewModel);
}

通过 Authorize 特性，限定只有登录用户才能添加学生：

[Authorize]
[HttpGet]
public IActionResult Create()
{
    return View();
}

更多用法请参考https://docs.microsoft.com/zh-cn/aspnet/core/security/authentication/identity?view=aspnetcore-3.1&tabs=visual-studio