aps.net HttpModudel

使用HttpModudel  首先注册IHttpModudel  接口

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


public class ModuleDemo : IHttpModule {


	// 声明一个事件
	public event EventHandler ExposedEvent;
	

	// Init方法仅用于给期望的事件注册方法
	public void Init(HttpApplication context) {
		context.BeginRequest += new EventHandler(context_BeginRequest);
	}

	// 处理BeginRequest 事件的实际代码
	void context_BeginRequest(object sender, EventArgs e) {
		HttpApplication application = (HttpApplication)sender;
		HttpContext context = application.Context;
		context.Response.Write("<h3 style='color:#00f'>来自HttpModule的处理，请求到达</h3><hr>");
		
		OnExposedEvent(new EventArgs());
	}
	
	protected virtual void OnExposedEvent(EventArgs e) {
		if (ExposedEvent != null)	// 如果Global中有注册
			ExposedEvent(this, e);	// 调用注册了的方法
	}
	
	public void Dispose() {
	}
}

然后在webconfig 注册该HttpModule   注册如下:

<httpModules>
			<add name="MyModule" type="ModuleDemo"/>

获取查看  HttpModule 

ublic partial class RegisteredModules : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		 Response.Write(ShowModules());
    }


	private string ShowModules() {
		HttpApplication app = Context.ApplicationInstance; //获取当前上下文的HttpApplication环境
		HttpModuleCollection moduleCollection = app.Modules; //获取所有Module集合

		// 获取所有的 Module 名称
		string[] moduleNames = moduleCollection.AllKeys;

		System.Text.StringBuilder results = new System.Text.StringBuilder();


		//遍历结果集
		foreach (string name in moduleNames) {
			results.Append("<b style='color:#800800'>名称：" + name + "</b><br />");	// 获得Module名称
			results.Append("类型：" + moduleCollection[name].ToString() + "<br />");	// 获得Module类型
		}

		return results.ToString();
	}

}

本文代码引用: http://www.cnblogs.com/JimmyZhang/category/101697.html