TCP Client Persistent Conection

[SakthiSurya]

Hi, I am using TCPClient for requesting web pages. ex: string Ahost = "http://www.Google.co.in"; Uri lastURI=new Uri(Ahost); TcpClient client = new TcpClient(); string host = lastURI.Host; string temp = lastURI.PathAndQuery; client.Connect(host, lastURI.Port); NetworkStream stream = client.GetStream(); string str = @"GET " + temp + " HTTP/1.1" + "\r\n" + @"Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*" + " \r\n" + @"Accept-Language: en-us" + "\r\n" + @"Accept-Encoding: gzip, deflate" + "\r\n" + @"User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" + "\r\n" + @"Host: " +host+ "\r\n" + @"Connection: Keep-Alive" + "\r\n\r\n"; byte[] send = Encoding.ASCII.GetBytes(str); try { if (stream.CanWrite) { stream.Write(send, 0, send.Length); } } catch (System.IO.IOException ioe) { Console.WriteLine(ioe.Message); } byte[] bytesToRead = new byte[client.ReceiveBufferSize]; MemoryStream ms = new MemoryStream(); StringBuilder sbuild = new StringBuilder(); do { try { int numBytesRead = stream.Read(bytesToRead, 0, client.ReceiveBufferSize); Console.WriteLine(numBytesRead.ToString()); ms.Write(bytesToRead, 0, numBytesRead); Console.WriteLine(ms.Length); } catch (Exception e) { Console.WriteLine("No Data Found"); } }while(stream.DataAvailable); ms.Seek(0, 0); StreamReader sr = new StreamReader(ms,Encoding.ASCII); string Result = sr.ReadToEnd(); sr.Close(); ms.Close(); stream.Close(); client.Close(); Console.WriteLine(Result); } } In the above case How can i use the same TCPClient object for more than one request provided the host is same.(in case of requests like http://www.google.co.in/ http://www.google.co.in/intl/en\_com/images/logo\_plain.png http://www.google.co.in/images/nav\_logo3.png ) Please H

[subrata jana]

string[] str1 = new string[3] { "http://www.google.co.in/", "http://www.google.co.in/intl/en\_com/images/logo\_plain.png", "http://www.google.co.in/images/nav\_logo3.png" }; string Ahost = "http://www.Google.co.in"; Uri lastURI=new Uri(Ahost); TcpClient client = new TcpClient(); string host = lastURI.Host; client.Connect(host, lastURI.Port); NetworkStream stream = client.GetStream(); for (int i = 0; i < str1.Length; i++) { string temp = new Uri(str1[i]).PathAndQuery; string str = @"GET " + temp + " HTTP/1.1" + "\r\n" + @"Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*" + " \r\n" + @"Accept-Language: en-us" + "\r\n" + @"Accept-Encoding: gzip, deflate" + "\r\n" + @"User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" + "\r\n" + @"Host: " + host + "\r\n" + @"Connection: Keep-Alive" + "\r\n\r\n"; byte[] send = Encoding.ASCII.GetBytes(str); try { if (stream.CanWrite) { stream.Write(send, 0, send.Length); } } catch (System.IO.IOException ioe) { Console.WriteLine(ioe.Message); } byte[] bytesToRead = new byte[client.ReceiveBufferSize]; MemoryStream ms = new MemoryStream(); StringBuilder sbuild = new StringBuilder(); do { try { int numBytesRead = stream.Read(bytesToRead, 0, client.ReceiveBufferSize); Console.WriteLine(numBytesRead.ToString()); ms.Write(bytesToRead, 0, numBytesRead); Console.WriteLine(ms.Length); } catch (Exception e1) { Console.WriteLine("No Data Found"); } } while (stream.DataAvailable); ms.Seek(0, 0); StreamReader sr = new StreamReader(ms, Encoding.ASCII); string Result = sr.ReadToEnd(); sr.Close(); ms.Close(); //stream.Close(); stream.Flush(); Console.WriteLine(Result); } client.Close();

[SakthiSurya]

Hi Subrata, Actually in my case i may not know the URLs in advance. If the host of requested url is same as the host of Previous Url I should be able to use the same connection. I tried the same without closing the underlying connection. While reading for the next request,i am getting an exception as Connection closed. Is it possible set the connection timeout. Sakthi.