asp.net2.0URL重写以及urlMappings问题(2)

　　由于一旦进行了URL重写，原先的WEBFORM中的Action会发生改变，容易造成：请求的资源不存在问题
   
  具体怎么样？各位DX看看就清楚了！！！
   
  所有才有了这个ResponseFilter了，实现如下，
   
  public class ResponseFilter:System.IO.Stream
  {
   public ResponseFilter(System.IO.Stream sink,string _str)
   {
   _sink = sink;
   //
   // TODO: 在此处添加构造函数逻辑
   //
   this.str = _str;
   }
   private string str = "";
   private System.IO.Stream _sink;
   private long _position;
   private System.Text.Encoding end=System.Text.Encoding.GetEncoding("GB18030");
   private System.Text.StringBuilder oOutput = new System.Text.StringBuilder();
   // The following members of Stream must be overriden.
   public override bool CanRead
   {
   get { return true; }
   }
   
   public override bool CanSeek
   {
   get { return true; }
   }
   
   public override bool CanWrite
   {
   get { return true; }
   }
   
   public override long Length
   {
   get { return 0; }
   }
   
   public override long Position
   {
   get { return _position; }
   set { _position = value; }
   }
   
   public override long Seek(long offset, System.IO.SeekOrigin direction)
   {
   return _sink.Seek(offset, direction);
   }
   
   public override void SetLength(long length)
   {
   _sink.SetLength(length);
   }
   
   public override void Close()
   {
   _sink.Close();
   }
   
   public override void Flush()
   {
   _sink.Flush();
   }
   
   public override int Read(byte[] buffer, int offset, int count)
   {
   return _sink.Read(buffer, offset, count);
   }
   
   // The Write method actually does the filtering.
   public override void Write(byte[] buffer, int offset, int count)
   {
   string szBuffer = System.Text.UTF8Encoding.UTF8.GetString(buffer, offset, count);
   string ap="action=\"";
   int pos=-1;
   if ((pos=szBuffer.IndexOf(ap) )!= -1)
   {
   int epos = szBuffer.IndexOf("\"", pos   ap.Length 1);
   if (epos != -1)
   {
   szBuffer= szBuffer.Remove(pos   ap.Length, epos - pos - ap.Length);
   }
   
   szBuffer = szBuffer.Insert(pos   ap.Length, this.str);
   
   byte[] data = System.Text.UTF8Encoding.UTF8.GetBytes(szBuffer);
   _sink.Write(data, 0, data.Length);
   
   }
   else
   {
   oOutput.Append(szBuffer);
   }
   
   //下面的这一段可以用来修改之间的内容；
   //Regex oEndFile = new Regex("", RegexOptions.IgnoreCase|RegexOptions.Compiled);
   //if (oEndFile.IsMatch(szBuffer))
   //{
   // //Append the last buffer of data
   // //附加上缓冲区中的最后一部分数据
   // oOutput.Append(szBuffer);
   // //Get back the complete response for the client
   // //传回完整的客户端返回数据
   // string szCompleteBuffer = oOutput.ToString().ToLower();
   // int ipos = szCompleteBuffer.IndexOf("",ipos 7);
   // string sp = szCompleteBuffer.Substring(ipos 7, epos - ipos );
   // szCompleteBuffer = szCompleteBuffer.Remove(ipos 7,sp.Length-7);
   // szCompleteBuffer = szCompleteBuffer.Insert(ipos   7, "dhz");
   // // szCompleteBuffer = szCompleteBuffer.Replace(sp, "dhz");
   // //No match, so write out original data
   // //没有匹配，因此写入源代码
   // byte[] data = System.Text.UTF8Encoding.UTF8.GetBytes(szCompleteBuffer);
   // _sink.Write(data, 0, data.Length);
   //}
   //else
   //{
   // oOutput.Append(szBuffer);
   //}
   }
  }
   
  //////而重候规则呢则是用xml文件配置如下；
   
  当然在web.config通过自定义配置节做也可以的
   
   
   
   
   
   ~/(\d{4})/(\d{2})\.html
   ~/(\d{4})/(\d{2})/
   ~/(\d{4})/(\d{2})
   ~/(\d{4})/(\d{2})/index.html
   
   ~/Pro.aspx?year=$1