public class MyHttpModule : IHttpModule

{

private HttpApplication _contextApplication;

    private TextWriter tw_new, tw_old;

    private StringBuilder _content;

    private FieldInfo fileinfo;

    public void Dispose()

    {

        _contextApplication = null;

        _contextApplication.Dispose();

    }



    public void Init(HttpApplication context)

    {

        _contextApplication = context;

        _contextApplication.PreRequestHandlerExecute += new EventHandler(_contextApplication_PreRequestHandlerExecute);

    }

    private void _contextApplication_PreRequestHandlerExecute(object sender, EventArgs e)

    {

        HttpContext context = _contextApplication.Context;

        Page _page = context.Handler as Page;

        _page.Unload += new EventHandler(_page_Unload);

        _content = new StringBuilder();

        tw_old = context.Response.Output;//Response原来的OutPut

        tw_new = new StringWriter(_content);

        Type type_rp = context.Response.GetType();

        fileinfo = type_rp.GetField("_writer", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);

        fileinfo.SetValue(context.Response, tw_new);

    }

    void _page_Unload(object sender, EventArgs e)

    {

        fileinfo.SetValue(HttpContext.Current.Response, tw_old);

        _content.AppendLine("胡学成2B");

        HttpContext.Current.Response.Write(_content.ToString());

    }