.Core中使用Session

.Core中使用Session

1.首先你需要安装NuGet包：Microsoft.AspNetCore.Session

2.在Startup.cs文件中添加代码。

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSession();

            services.AddControllersWithViews();
            services.Configure<CookiePolicyOptions>(options => {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => false;//默认为true，改为false
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });
        }

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            app.UseSession();
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }
            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
            });
        }

Session写入

HttpContext.Session.SetString("key", "value");

Session读取

HttpContext.Session.GetString("key")