Microsoft.AspNetCore.Session;
Microsoft.AspNetCore.DataProtection.Redis;
Microsoft.Extensions.Caching.Redis.Core;
Microsoft.Extensions.Caching.Redis
Microsoft.AspNetCore.Http;     //使用Session时有扩展方法

{"Logging": {"LogLevel": {"Default": "Warning"}},"WebConfig": {"Redis": {"Connection": "127.0.0.1:6379,defaultdatabase=1",//"Connection": "127.0.0.1:6379,allowAdmin=true,password=123456,defaultdatabase=5","InstanceName": "Core_Redis_Session_"},"SessionTimeOut": "30" //session过期时长，分钟},"AllowedHosts": "*"
}

// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);/**  Microsoft.AspNetCore.Session;*  Microsoft.AspNetCore.DataProtection.Redis;*  Microsoft.Extensions.Caching.Redis.Core;*  Microsoft.Extensions.Caching.Redis*  Microsoft.AspNetCore.Http;     //使用Session时有扩展方法*/#region 使用Redis保存Sessionvar redisConn = Configuration["WebConfig:Redis:Connection"];var redisInstanceName = Configuration["WebConfig:Redis:InstanceName"];//Session 过期时长分钟var sessionOutTime = Configuration.GetValue<int>("WebConfig:SessionTimeOut", 30);//var redis = StackExchange.Redis.ConnectionMultiplexer.Connect(redisConn);//services.AddDataProtection().PersistKeysToRedis(redis, "DataProtection-Test-Keys");services.AddDistributedRedisCache(option =>{//redis 连接字符串option.Configuration = redisConn;//redis 实例名option.InstanceName = redisInstanceName;});#endregion//添加Session并设置过期时长services.AddSession(options => { options.IdleTimeout = TimeSpan.FromMinutes(sessionOutTime); });}// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{app.UseSession();app.UseMvc(routes =>{routes.MapRoute(name: "default",template: "{controller=Home}/{action=Index}/{id?}");});
}

public class HomeController : Controller
{public IActionResult Index(){ViewData["UserName"] = this.HttpContext.Session.GetString("UserName");ViewData["PassWord"] = this.HttpContext.Session.GetString("PassWord");return View();}[HttpPost]public NoContentResult Add(string userName, string pwd){this.HttpContext.Session.SetString("UserName", userName);this.HttpContext.Session.SetString("PassWord", pwd);return NoContent();}
}

<form method="post" action="../Home/Add"><div><input name="username" id="username" type="text" value="@ViewData["UserName"]" /><input name="pwd" id="pwd" type="password" value="" /><input type="submit" value="更新" /><h1>提交用户名称为：@ViewData["UserName"]    密码：@ViewData["PassWord"]</h1><a href="javascript:void(0);" onclick="window.location.reload();">刷新显示最新值</a></div>
</form>