Slightly Harder Socket Programming

Ciwan

Hello Friends.

I have a Product class, and it is programmed to act as a data structure basically. Here is the code:

using System;
namespace OOSys
{
class Product
{
private int ProductNo { get; set; }
private string ProductName { get; set; }
private string ProductType { get; set; }
private double ProductPrice { get; set; }
private string ProductMaker { get; set; }
// Constructor
public Product(int number, string name, string type, double price, string maker)
{
ProductNo = number;
ProductName = name;
ProductType = type;
ProductPrice = price;
ProductMaker = maker;
}
}
}

What I want to do is serialize a product, and send it via socket to another running program. I've called my two programs Client and Server. Here is the code for my Client class:

using System;
using System.Net;
using System.Net.Sockets;
namespace OOSys
{
class Client
{
static void Main(string[] args)
{
try
{
Product p = new Product(1, "CoD", "Shooter", 39.99, "UbiSoft");
string userInputString;
Console.WriteLine("This program will transfer a product to a server. \n");
Console.WriteLine("Please type the number 1 followed by Enter to send the Product:");
userInputString = Console.ReadLine();
if (userInputString == "1")
{
Console.WriteLine("You Entered: " + userInputString);
Console.WriteLine("Status: Sending Product ... ...");
IPAddress[] ipAddress = Dns.GetHostAddresses("localhost");
IPEndPoint remoteEP = new IPEndPoint(ipAddress[0], 8221);
Socket socClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
socClient.Bind(remoteEP);
socClient.Connect(remoteEP);
 
byte[] ProductData = System.Text.Encoding.ASCII.GetBytes(userInputString);
socClient.Send(ProductData);
socClient.Close();
Console.ReadLine();
}
else
{
Console.WriteLine("Nothing will be sent !");
}

}
catch (SocketException se)
{
Console.WriteLine(se);
}
}
}
}

Ignoring the Server side program for now (I'll move onto that in a bit) ... do you see anything wrong with the above code ?

I have read the articles on the right, but they were just general info, I couldn't see anything about sending Objects to a Server program.

I would greatly appreciate any help with this.

Thank you.

2 Replies

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Ciwan15y ago
Hello Krishna

Thanks for that, I went ahead and corrected that. Here is what my Client code looks like now:

[code]public class Client {
static void Main(string[] args)
{
try
{
Product p = new Product(1, "CoD", "Shooter", 39.99, "UbiSoft");

string userInputString;
Console.WriteLine("This program will transfer a product to a server. \n");
Console.WriteLine("Please type the number 1 followed by Enter to send the Product:");
userInputString = Console.ReadLine();
if (userInputString == "1")
{
Console.WriteLine("You Entered: " + userInputString);
Console.WriteLine("Status: Sending Product ... ...");
IPAddress[] ipAddress = Dns.GetHostAddresses("localhost");
IPEndPoint remoteEP = new IPEndPoint(ipAddress[0], 8221);
Socket socClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
socClient.Bind(remoteEP);
socClient.Connect(remoteEP);

byte[] ProductData = p.Serialize(); //fills the buffer with data
socClient.Send(ProductData);

socClient.Close();
Console.ReadLine();

}
else
{
Console.WriteLine("Nothing will be sent !");
}

}
catch (SocketException se)
{
Console.WriteLine(se);
}

}
}[/code]

And here is the code for my Server class. All I want to do is send a Product object via a Socket between them. I can't believe how difficult this is (at least for me) :(

[code]using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using OOSys;

namespace OOSysServer
{
   class Server
   {
   static void Main(string[] args)
   {
   try
   {
   Console.WriteLine("This is the Server. It is waiting for a connection ...");
   IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 8221);
   Socket socServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);

   Product p = new Product();

   while (true)
   {
   socServer.Bind(remoteEP);
   socServer.Listen(100);
   Socket socClient = socServer.Accept();

   socClient.Close();
   Console.ReadLine();
   }

   p.TransmissionBuffer.Add(p.buffer[i]);

   } catch (SocketException se) {

   Console.WriteLine(se);
   }
   }
   }
}[/code]
krishna v15y ago
u r sending the user input string.not the product data.
byte[] ProductData = System.Text.Encoding.ASCII.GetBytes(userInputString);
override .Tostring() and try sending the string data and then implement a binary formatter.