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帮助.NET CookieContainer

.NET CookieContainer 是一个用于在 .NET 应用程序中存储和操作 Cookie 的容器类。它提供了一种简单的方式来存储和操作 Cookie,例如创建、读取、删除和过期 Cookie。

以下是 .NET CookieContainer 的一些优势:

  1. 简单易用:CookieContainer 提供了简单易用的 API,使您无需编写大量代码即可存储和操作 Cookie。
  2. 灵活性:CookieContainer 允许您根据需要自定义 Cookie 的生命周期,例如创建自定义过期时间。
  3. 安全性:CookieContainer 提供了安全机制,可防止您意外地存储不安全的 Cookie。
  4. 跨平台支持:CookieContainer 支持多种平台,包括 Windows、Linux 和 macOS。

以下是一个示例代码,演示如何使用 .NET CookieContainer:

代码语言:csharp
复制
using System.Collections.Generic;
using System.Net.Http;
using System.Web.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Options;

namespace MyApp.Controllers
{
    public class MyController : ApiController
    {
        private readonly MyAppOptions _options;
        private readonly CookieContainer _cookieContainer = new CookieContainer();

        public MyController(IOptions<MyAppOptions> options)
        {
            _options = options.Value;
        }

        [HttpPost]
        public IHttpActionResult Login([FromBody] User user)
        {
            // Check if the user is authenticated
            if (user == null || !_options.Authentication.IsEnabled())
            {
                return Unauthorized();
            }

            // Create a new cookie with the user's ID and expiration time
            string userId = user.Id.ToString();
            CookieOptions cookieOptions = new CookieOptions
            {
                HttpOnly = true,
                Secure = _options.Authentication.IsSecure(),
                Expires = DateTimeOffset.UtcNow.AddMinutes(30),
                SameSite = SameSiteMode.Strict
            };
            _cookieContainer.Add(new Cookie(userId, null, cookieOptions));

            // Return the user's ID and a success status code
            return Ok(new { userId = userId });
        }

        [HttpGet]
        public IHttpActionResult GetUser()
        {
            // Check if the user's cookie exists
            if (_cookieContainer.Count == 0)
            {
                return Unauthorized();
            }

            // Return the user's ID and a success status code
            string userId = _cookieContainer.GetCookieName();
            return Ok(new { userId = userId });
        }

        [HttpDelete]
        public IHttpActionResult Logout()
        {
            // Remove the user's cookie
            _cookieContainer.DeleteCookie(null);

            // Return a success status code
            return Ok();
        }
    }
}

In this example, the MyController class requires the MyAppOptions class to be passed in as a dependency. This class is used to configure the authentication and security settings for the application. The CookieContainer class is used to store the user's ID and authentication cookies. The HttpContextAccessor class is used to access the current HTTP context and retrieve the authentication cookies.

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