1.过滤器代码
public class PageFilter : IHttpModule
{
public String ModuleName
{
get { return "PageFilter"; }
}
public void Dispose()
{
}
//在 Init 方法中注册HttpApplication
// 通过委托方式注册事件
public void Init(HttpApplication application)
{
application.BeginRequest += Application_BeginRequest;
application.Error += Application_Error;
application.AcquireRequestState += new EventHandler(Application_AcquireRequestState);
application.EndRequest += Application_EndRequest;
}
private void Application_BeginRequest(object sender, EventArgs e)
{
HttpApplication application = (HttpApplication)sender;
HttpContext context = application.Context;
HttpSessionState session = context.Session;
HttpRequest request = context.Request;
HttpResponse response = context.Response;
String contextPath = request.ApplicationPath;
var rawUrl = request.RawUrl;
if (rawUrl.Contains("/admin/Sys/SysDictTypeEdit.aspx") && rawUrl.Contains("_method=Save"))
{
System.Diagnostics.Debug.WriteLine("begin request");
}
}
private void Application_Error(object sender, EventArgs e)
{
HttpApplication application = (HttpApplication)sender;
HttpContext context = application.Context;
HttpSessionState session = context.Session;
HttpRequest request = context.Request;
HttpResponse response = context.Response;
String contextPath = request.ApplicationPath;
var rawUrl = request.RawUrl;
if (rawUrl.Contains("/admin/Sys/SysDictTypeEdit.aspx") && rawUrl.Contains("_method=Save"))
{
System.Diagnostics.Debug.WriteLine("error");
}
}
private void Application_EndRequest(object sender, EventArgs e)
{
HttpApplication application = (HttpApplication)sender;
HttpContext context = application.Context;
HttpSessionState session = context.Session;
HttpRequest request = context.Request;
HttpResponse response = context.Response;
String contextPath = request.ApplicationPath;
var rawUrl = request.RawUrl;
if (rawUrl.Contains("/admin/Sys/SysDictTypeEdit.aspx") && rawUrl.Contains("_method=Save"))
{
System.Diagnostics.Debug.WriteLine("end request");
}
}
private void Application_AcquireRequestState(Object source, EventArgs e)
{
try
{
HttpApplication application = (HttpApplication)source;
HttpContext context = application.Context;
HttpSessionState session = context.Session;
HttpRequest request = context.Request;
HttpResponse response = context.Response;
String contextPath = request.ApplicationPath;
if (application.Context.Handler is System.Web.UI.TemplateControl)
{
var path = ((System.Web.UI.TemplateControl)application.Context.Handler).AppRelativeVirtualPath;
if (path == "~/admin/Sys/SysDictTypeEdit.aspx" && request["_method"] == "Save")
{
Action action = () => System.Diagnostics.Debug.WriteLine("Save777");
//注意可以在这里往上下文的IDcitionary里放委托，将来可用于回调（可理解为注册）
context.Items.Add(request["_method"], action);
}
}
}
catch (Exception ex)
{
throw;
}
}
}
2.web.config配置
<system.web>
<httpModules>
<add name="pageModule" type="HraWeb.PageFilter,HraWeb"/>
</httpModules>
</system.web>
<system.webserver>
<modules>
<add name="pageModule" type="HraWeb.PageFilter,HraWeb"/>
</modules>
</system.webserver>
