用HttpModule实现HTTP缓存协商不行吗？
0
悬赏园豆：5
[已解决问题]
解决于 2017-11-22 09:02
public class HttpCacheModule:IHttpModule { public void Init(HttpApplication context) { context.EndRequest += context_EndRequest; } void context_EndRequest(object sender, EventArgs e) { HttpApplication app = (HttpApplication)sender; IServiceProvider provider = (IServiceProvider)app.Context; HttpWorkerRequest worker = (HttpWorkerRequest)provider.GetService(typeof(HttpWorkerRequest)); //设置响应头 app.Context.Response.Cache.SetCacheability(HttpCacheability.Public); //worker.SendKnownResponseHeader(HttpWorkerRequest.HeaderCacheControl, "public"); worker.SendKnownResponseHeader(HttpWorkerRequest.HeaderExpires, Convert.ToDateTime(Common.Common.currDateTime).AddHours(1).ToUniversalTime().ToString("r")); worker.SendKnownResponseHeader(HttpWorkerRequest.HeaderLastModified, Convert.ToDateTime(Common.Common.currDateTime).ToUniversalTime().ToString("r")); app.Context.Response.Write("来自HttpModule的你。"); } }
请求页面总是返回200，这样实现HTTP缓存协商哪里不对呢？
第一次请求：
再次请求：
请高人帮我解惑，谢谢。
最佳答案
0
你想返回304？
收获园豆：5
其他回答(1)
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app.Context.Response.Cache.SetMaxAge(new TimeSpan(DateTime.Now.AddYears(1).Ticks));
app.Context.Response.Cache.SetExpires(DateTime.Now.AddYears(1));
app.Context.Response.AddHeader("Expires", DateTime.Now.AddYears(1).ToShortDateString());
