简单的C# Socket编程

简单的C# Socket编程2011-03-12 cnblogs Server,服务器代码。
使用Socket套接字连接。
1 using System;
2 using System.Net;
3 using System.Net.Sockets;
4 using System.IO ;
5
6 public class Echoserver
7 {
8  //entry point of main method.
9  public static void Main（）
10  {
11    //TcpListener is listening on the given port
12    Int32 port = 1234;
13
14    //IPAddress is connetct ip address
15    //IPAddress addr = IPAddress.Parse（"127.0.0.1"）;
16    IPAddress ipAddress = Dns.Resolve（"localhost"）.AddressList[0];
17
18    TcpListener tcpListener = new TcpListener（ipAddress,port）;
19    tcpListener.Start（）;
20    Console.WriteLine（"Server Started"） ;
21    //Accepts a new connection
22    Socket socketForClient = tcpListener.AcceptSocket（）;
23    //StreamWriter and StreamReader Classes for reading and writing the data to and from.
24    //The server reads the meassage sent by the Client ,converts it to upper case and sends it back to the client.
25    //Lastly close all the streams.
26    try
27    {
28      if （socketForClient.Connected）
29      {
30        while（true）
31        {
32          Console.WriteLine（"Client connected"）;
33          NetworkStream networkStream = new NetworkStream（socketForClient）;
34          StreamWriter streamWriter = new StreamWriter（networkStream）;
35          StreamReader streamReader = new StreamReader（networkStream）;
36          string line = streamReader.ReadLine（）;
37          Console.WriteLine（"Read:" +line）;
38          line=line.ToUpper（）+ "！";
39          streamWriter.WriteLine（line）;
40          Console.WriteLine（"Wrote:"+line）;
41          streamWriter.Flush（） ;
42        }
43      }
44      socketForClient.Close（）;
45      Console.WriteLine（"Exiting"）;
46    }
47    catch（Exception e）
48    {
49      Console.WriteLine（e.ToString（）） ;
50    }
51  }
52}
53
54