先写一个类：

public class ResponseFilter : Stream

    {

        private Stream m_sink;

        private long m_position;

        private FileStream fs;

        public ResponseFilter(Stream sink)

        {

            m_sink = sink;

            fs = new FileStream(@"C:\FilterOutput\Products.htm", FileMode.OpenOrCreate, FileAccess.Write);

        }

        // The following members of Stream must be overriden.

        public override bool CanRead

        { get { return true; } }

        public override bool CanSeek

        { get { return false; } }

        public override bool CanWrite

        { get { return false; } }

        public override long Length

        { get { return 0; } }

        public override long Position

        {

            get { return m_position; }

            set { m_position = value; }

        }

        public override long Seek(long offset, System.IO.SeekOrigin direction)

        {

            return 0;

        }

        public override void SetLength(long length)

        {

            m_sink.SetLength(length);

        }

        public override void Close()

        {

            m_sink.Close();

            fs.Close();

        }

        public override void Flush()

        {

            m_sink.Flush();

        }

        public override int Read(byte[] buffer, int offset, int count)

        {

            return m_sink.Read(buffer, offset, count);

        }

        // Override the Write method to filter Response to a file.

        public override void Write(byte[] buffer, int offset, int count)

        {

            //Write out the response to the browser.

            m_sink.Write(buffer, 0, count);

            //Write out the response to the file.

            fs.Write(buffer, 0, count);

        }

    }

 //把类调用到OnInit方法中

        #region OnInit

        /// <summary>

        /// 生成静态页

        /// </summary>

        /// <param name="e"></param>

        protected override void OnInit(EventArgs e)

        {

           Response.Filter = new ResponseFilter(Response.Filter);

        }

        #endregion

 

 

来源于：   BadBoy网络安全小组  B.B.S.T信息安全团队