How to respond to a client's Http POST and How to read the server's HttpListener response

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I have setup a server's HTTPListener to listen for and read a client's HTTP POST. I'm not quite sure how to direct the response back to the client. I'm also not sure how the client reads the server's HttpListener response.

The below code is how I'm thinking the server's HttpListener should respond. This is some sample code from the msdn.microsoft.com library. How will the client be able to read this response?

C#

 // How to respond to a client's HTTP POST
// Obtain a response object.
HttpListenerResponse response = context.Response;
// Construct a response.
string responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer,0,buffer.Length);
// You must close the output stream.
output.Close();

Also, am I on the right track for the client reading the server's HttpListener response? See below code:

C#

public string GetResponseContent(HttpWebResponse response)
        {
            if (response == null)
            {
                throw new ArgumentNullException("response");
            }
            Stream dataStream = null;
            StreamReader reader = null;
            string responseFromServer = null;

            try
            {
                // Get the stream containing content returned by the server.
                dataStream = response.GetResponseStream();
                // Open the stream using a StreamReader for easy access.
                reader = new StreamReader(dataStream);
                // Read the content.
                responseFromServer = reader.ReadToEnd();
                // Cleanup the streams and the response.
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {                
                if (reader != null)
                {
                    reader.Close();
                }
                if (dataStream != null)
                {
                    dataStream.Close();
                }
                response.Close();
            }
            LastResponse = responseFromServer;
            return responseFromServer;
        }

Thanks for clarification anyone can share.

Posted 4-Dec-13 11:20am

oodobah

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