在Core2.1中启用Session

Startup.cs文件进行配置

ConfigureServices方法的配置

在 services.AddMvc(....);这句上面加上

services.AddSession(options =>
{
options.IdleTimeout = TimeSpan.FromMinutes(30);
});

这里面的30是指Session的生命周期为30分钟

 // This method gets called by the runtime. Use this method to add services to the container. public void ConfigureServices(IServiceCollection services) { services.Configure<CookiePolicyOptions>(options => { // This lambda determines whether user consent for non-essential cookies is needed for a given request. options.CheckConsentNeeded = context => true; options.MinimumSameSitePolicy = SameSiteMode.None; }); services.AddSession(options => { options.IdleTimeout = TimeSpan.FromMinutes(30); }); services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); }

Configure方法中的配置

在 app.UseMvc(...);的上面加上

app.UseSession();

 // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { app.UseExceptionHandler("/Home/Error"); app.UseHsts(); } app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseCookiePolicy(); app.UseSession(); app.UseMvc(routes => { routes.MapRoute( name: "areas", template: "{area:exists}/{controller=Home}/{action=Index}/{id?}" ); routes.MapRoute( name: "default", template: "{controller=Home}/{action=Index}/{id?}"); }); }

在使用Session的页面中添加using引用

using Microsoft.AspNetCore.Http;

Microsoft.AspNetCore.Http的方法

namespace Microsoft.AspNetCore.Http{ public static class SessionExtensions { public static byte[] Get(this ISession session, string key); public static int? GetInt32(this ISession session, string key); public static string GetString(this ISession session, string key); public static void SetInt32(this ISession session, string key, int value); public static void SetString(this ISession session, string key, string value); }}

Get为获取值

HttpContext.Session.GetString("username");

Set为设置

HttpContext.Session.SetString("username", "admin");