Global.asax和IHttpModule

兩者都能處理HttpApplication中的事件。

IHttpModule 的方式可以用來建立多個 Module ，并編譯為程式集，友善部署和在多個項目中使用。 

而 Global.asax 方式比較直接，友善在程式中一次性的處理。

Global.asax是繼承了HttpApplication。而IHttpModule的Init方法中，傳入的參數必須是HttpApplication。

HttpModule可以編譯成dll，但是global隻能在一個應用程式中。

在Global.asax中，如果要實作HttpApplication中暴露的事件，必須采用專用的命名規則。Application_EventName(AppropriateEventArgumentSignature)

protected void Application_AcquireRequestState(object sender, EventArgs e) 

        { 

            Response.Write("1Application_AcquireRequestState" + "<br>"); 

        } 

        protected void Application_AuthenticateRequest(object sender, EventArgs e) 

            Response.Write("2Application_AuthenticateRequest" + "<br>"); 

        protected void Application_AuthorizeRequest(object sender, EventArgs e) 

            Response.Write("3Application_AuthorizeRequest" + "<br>"); 

        protected void Application_BeginRequest(object sender, EventArgs e) 

            Response.Write("4Application_BeginRequest" + "<br>"); 

        protected void Application_Disposed(object sender, EventArgs e) 

            Response.Write("5Application_Disposed" + "<br>"); 

        protected void Application_EndRequest(object sender, EventArgs e) 

            Response.Write("6Application_EndRequest" + "<br>"); 

        protected void Application_Error(object sender, EventArgs e) 

            Response.Write("7Application_Error" + "<br>"); 

        protected void Application_LogRequest(object sender, EventArgs e) 

            Response.Write("8Application_LogRequest" + "<br>"); 

        protected void Application_MapRequestHandler(object sender, EventArgs e) 

            Response.Write("9Application_MapRequestHandler" + "<br>"); 

        protected void Application_PostAcquireRequestState(object sender, EventArgs e) 

            Response.Write("10Application_PostAcquireRequestState" + "<br>"); 

        protected void Application_PostAuthenticateRequest(object sender, EventArgs e) 

            Response.Write("11Application_PostAuthenticateRequest" + "<br>"); 

        protected void Application_PostAuthorizeRequest(object sender, EventArgs e) 

            Response.Write("12Application_PostAuthorizeRequest" + "<br>"); 

        protected void Application_PostLogRequest(object sender, EventArgs e) 

            Response.Write("13Application_PostLogRequest" + "<br>"); 

        protected void Application_PostMapRequestHandler(object sender, EventArgs e) 

            Response.Write("14Application_PostMapRequestHandler" + "<br>"); 

        protected void Application_PostReleaseRequestState(object sender, EventArgs e) 

            Response.Write("15Application_PostReleaseRequestState" + "<br>"); 

        protected void Application_PostRequestHandlerExecute(object sender, EventArgs e) 

            Response.Write("16Application_PostRequestHandlerExecute" + "<br>"); 

        protected void Application_PostResolveRequestCache(object sender, EventArgs e) 

            Response.Write("17Application_PostResolveRequestCache" + "<br>"); 

        protected void Application_PostUpdateRequestCache(object sender, EventArgs e) 

            Response.Write("18Application_PostUpdateRequestCache" + "<br>"); 

        protected void Application_PreRequestHandlerExecute(object sender, EventArgs e) 

            Response.Write("19Application_PreRequestHandlerExecute" + "<br>"); 

        protected void Application_PreSendRequestContent(object sender, EventArgs e) 

            Response.Write("20Application_PreSendRequestContent" + "<br>"); 

        protected void Application_PreSendRequestHeaders(object sender, EventArgs e) 

            Response.Write("21Application_PreSendRequestHeaders" + "<br>"); 

        protected void Application_ReleaseRequestState(object sender, EventArgs e) 

            Response.Write("22Application_ReleaseRequestState" + "<br>"); 

        protected void Application_ResolveRequestCache(object sender, EventArgs e) 

            Response.Write("23Application_ResolveRequestCache" + "<br>"); 

        protected void Application_UpdateRequestCache(object sender, EventArgs e) 

            Response.Write("24Application_UpdateRequestCache" + "<br>"); 

        }

本文轉自cnn23711151CTO部落格，原文連結： http://blog.51cto.com/cnn237111/592261，如需轉載請自行聯系原作者