如何使用.net内核实现图片的缓存？

Question

我想缓存我的图像，然后找到类似这样的东西

<cache enabled="true"> Current Time Inside Cache Tag Helper: @DateTime.Now </cache>

https://docs.microsoft.com/en-us/aspnet/core/mvc/views/tag-helpers/built-in/cache-tag-helper?view=aspnetcore-3.1我如何在上面实现我的镜像？

Answer 1

图片缓存是客户端缓存，你应该像下面这样配置你的应用：

app.UseStaticFiles(new StaticFileOptions
            {
                ServeUnknownFileTypes = false,
                OnPrepareResponse = ctx =>
                {
                    const int durationInSeconds = 60 * 60 * 24;
                    ctx.Context.Response.Headers[HeaderNames.CacheControl] = "public,max-age=" + durationInSeconds;
                    ctx.Context.Response.Headers[HeaderNames.Expires] = new[] { DateTime.UtcNow.AddYears(1).ToString("R") }; // Format RFC1123
                }
            });