浅谈如何在ASP.NET Core中实现一个基础的身份认证
编程学习 2021-07-04 22:41www.dzhlxh.cn编程入门
这篇文章主要介绍了浅谈如何在ASP.NET Core中实现一个基础的身份认证,具有一定的参考价值，感兴趣的小伙伴们可以参考一下。
ASP.NET终于可以跨平台了，但是不是我们常用的ASP.NET, 而是叫一个ASP.NET Core的新平台，他可以跨Windows, Linux, OS X等平台来部署你的web应用程序，你可以理解为，这个框架就是ASP.NET的下一个版本，相对于传统ASP.NET程序，它还是有一些不同的地方的，比如很多类库在这两个平台之间是不通用的。
今天首先我们在ASP.NET Core中来实现一个基础的身份认证，既登陆功能。
前期准备：
1.推荐使用 VS 2015 Update3 作为你的IDE，下载地址：
2.你需要安装.NET Core的运行环境以及开发工具，这里提供VS版：
创建项目：
在VS中新建项目，项目类型选择ASP.NET Core Web Application (.NET Core), 输入项目名称为TestBasicAuthor。
接下来选择 Web Application, 右侧身份认证选择：No Authentication
打开Startup.cs
在ConfigureServices方法中加入如下代码：
services.AddAuthorization();
在Configure方法中加入如下代码：
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationScheme = "Cookie",
LoginPath = new PathString("/Account/Login"),
AccessDeniedPath = new PathString("/Account/Forbidden"),
AutomaticAuthenticate = true,
AutomaticChallenge = true
});
完整的代码应该是这样：
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
services.AddAuthorization();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationScheme = "Cookie",
LoginPath = new PathString("/Account/Login"),
AccessDeniedPath = new PathString("/Account/Forbidden"),
AutomaticAuthenticate = true,
AutomaticChallenge = true
});
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
你或许会发现贴进去的代码是报错的，这是因为还没有引入对应的包，进入报错的这一行，点击灯泡，加载对应的包就可以了。
在项目下创建一个文件夹命名为Model，并向里面添加一个类User.cs
代码应该是这样
public class User
{
public string UserName { get; set; }
public string Password { get; set; }
}
创建一个控制器，取名为：AccountController.cs
在类中贴入如下代码：
[HttpGet]
public IActionResult Login()
{
return View();
}
[HttpPost]
public async Task<IActionResult> Login(User userFromFore)
{
var userFromStorage = TestUserStorage.UserList
.FirstOrDefault(m => m.UserName == userFromFore.UserName && m.Password == userFromFore.Password);
if (userFromStorage != null)
{
//you can add all of ClaimTypes in this collection
var claims = new List<Claim>()
{
new Claim(ClaimTypes.Name,userFromStorage.UserName)
//,new Claim(ClaimTypes.Email,"emailaccount@microsoft.com")
};
//init the identity instances
var userPrincipal = new ClaimsPrincipal(new ClaimsIdentity(claims, "SuperSecureLogin"));
//signin
await HttpContext.Authentication.SignInAsync("Cookie", userPrincipal, new AuthenticationProperties
{
ExpiresUtc = DateTime.UtcNow.AddMinutes(20),
IsPersistent = false,
AllowRefresh = false
});
return RedirectToAction("Index", "Home");
}
else
{
ViewBag.ErrMsg = "UserName or Password is invalid";
return View();
}
}
public async Task<IActionResult> Logout()
{
await HttpContext.Authentication.SignOutAsync("Cookie");
return RedirectToAction("Index", "Home");
}
相同的文件里让我们来添加一个模拟用户存储的类
//for simple, I'm not using the database to store the user data, just using a static class to replace it.
public static class TestUserStorage
{
public static List<User> UserList { get; set; } = new List<User>() {
new User { UserName = "User1",Password = "112233"}
};
}
接下来修复好各种引用错误。
完整的代码应该是这样
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using TestBasicAuthor.Model;
using System.Security.Claims;
using Microsoft.AspNetCore.Http.Authentication;
// For more information on enabling MVC for empty projects, visit http://go.microsoft.com/fwlink/?LinkID=397860
namespace TestBasicAuthor.Controllers
{
public class AccountController : Controller
{
[HttpGet]
public IActionResult Login()
{
return View();
}
[HttpPost]
public async Task<IActionResult> Login(User userFromFore)
{
var userFromStorage = TestUserStorage.UserList
.FirstOrDefault(m => m.UserName == userFromFore.UserName && m.Password == userFromFore.Password);
if (userFromStorage != null)
{
//you can add all of ClaimTypes in this collection
var claims = new List<Claim>()
{
new Claim(ClaimTypes.Name,userFromStorage.UserName)
//,new Claim(ClaimTypes.Email,"emailaccount@microsoft.com")
};
//init the identity instances
var userPrincipal = new ClaimsPrincipal(new ClaimsIdentity(claims, "SuperSecureLogin"));
//signin
await HttpContext.Authentication.SignInAsync("Cookie", userPrincipal, new AuthenticationProperties
{
ExpiresUtc = DateTime.UtcNow.AddMinutes(20),
IsPersistent = false,
AllowRefresh = false
});
return RedirectToAction("Index", "Home");
}
else
{
ViewBag.ErrMsg = "UserName or Password is invalid";
return View();
}
}
public async Task<IActionResult> Logout()
{
await HttpContext.Authentication.SignOutAsync("Cookie");
return RedirectToAction("Index", "Home");
}
}
//for simple, I'm not using the database to store the user data, just using a static class to replace it.
public static class TestUserStorage
{
public static List<User> UserList { get; set; } = new List<User>() {
new User { UserName = "User1",Password = "112233"}
};
}
}
在Views文件夹中创建一个Account文件夹，在Account文件夹中创建一个名位index.cshtml的View文件。
贴入如下代码：
@model TestBasicAuthor.Model.User
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
@using (Html.BeginForm())
{
<table>
<tr>
<td></td>
<td>@ViewBag.ErrMsg</td>
</tr>
<tr>
<td>UserName</td>
<td>@Html.TextBoxFor(m => m.UserName)</td>
</tr>
<tr>
<td>Password</td>
<td>@Html.PasswordFor(m => m.Password)</td>
</tr>
<tr>
<td></td>
<td><button>Login</button></td>
</tr>
</table>
}
</body>
</html>
打开HomeController.cs
添加一个Action, AuthPage.
[Authorize]
[HttpGet]
public IActionResult AuthPage()
{
return View();
}
在Views/Home下添加一个视图，名为AuthPage.cshtml
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> </head> <body> <h1>Auth page</h1> <p>if you are not authorized, you can't visit this page.</p> </body> </html>
到此，一个基础的身份认证就完成了，核心登陆方法如下：
await HttpContext.Authentication.SignInAsync("Cookie", userPrincipal, new AuthenticationProperties
{
ExpiresUtc = DateTime.UtcNow.AddMinutes(20),
IsPersistent = false,
AllowRefresh = false
});
启用验证如下：
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationScheme = "Cookie",
LoginPath = new PathString("/Account/Login"),
AccessDeniedPath = new PathString("/Account/Forbidden"),
AutomaticAuthenticate = true,
AutomaticChallenge = true
});
}
在某个Controller或Action添加[Author]，即可配置位需要登陆验证的页面。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持狼蚁SEO。