.net5 mvc 项目使用 ResponseCache

1 在 Startup.cs 添加服务和配置中间件

在  Startup.cs 的 ConfigureServices 添加如下代码：

            services.AddResponseCaching(options =>
            {
                options.SizeLimit = 100 * 1024 * 1024; // 最大缓存尺寸，默认是 100 MB
            });

接着在 Startup.cs 的 Configure 方法中启用中间件

            app.UseResponseCaching();

2 使用 ResponseCache

在控制器动作方法中使用，并在 reture View() 代码处打上断点

        [ResponseCache(Duration = 600)] // 秒为单位
        public IActionResult Index()
        {
            return View();
        }

3 测试

在浏览器首次打开页面 https://localhost:44389/home/index ，命中断点；

然后在浏览器中 打开一个新标签页，重新访问 https://localhost:44389/home/index，不会命中断点(不走服务器，直接读取缓存内容)

4 Startup.cs 完整代码如下

    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddResponseCaching(options =>
            {
                options.SizeLimit = 100 * 1024 * 1024; // 最大缓存尺寸，默认是 100 MB
            });

            services.AddControllersWithViews();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            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.UseResponseCaching();

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