C# FrameworkAPI之Socket通訊
阿新 • • 發佈:2018-11-10
服務端:
1:建立一個socket的物件
Socket socketserver=new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
第一個引數是指定socket物件使用的定址方案,即IPV4或IPV6;
第二個引數socket物件的套接字的型別,此處stream是表示流式套接字
第三個引數socket物件支援的協議,TCP協議或UDP協議。
這三個引數一般初期使用上面的就OK了,到了後期對socket通訊熟悉了再來看其它引數的功能及作用。
2:使用指定的埠號和伺服器的ip地址初始化System.Net.IPEndPoint類的例項
IPEndPoint endpoint=new IPEndPoint(ipaddress, port);
3:用socket對像socketserver的Bind()方法繫結IPEndPoint;
socketserver.Bind(endpoint);
4:用socket對像socketserver的Listen()方法開始監聽;
socketwatch.Listen(20);//此處是讓伺服器可以監聽20個客戶端的連線。
5:接受到客戶端的連線,用socket對像的Accept()方法建立新的socket對像用於和請求的客戶端進行通訊;
SocketsocConnection = socketwatch.Accept();//socConnection 就是伺服器監聽到的客戶端連線的套接字,伺服器就可以通過socConnection 和該連線的客戶端進行通訊。
6;此處就可以使用socConnection 進行通訊Receive()和Send();
7:通訊結束後一定記得關閉socket,close()方法;
程式碼如下:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; //-------------------------------- using System.Net; using System.Net.Sockets; using System.Threading; namespace SocketTestServer { class Program { private static byte[] result = new byte[1024]; private static int myProt = 2000;//埠 static Socket serverSocket; static void Main(string[] args) { //伺服器IP地址 IPAddress ip = IPAddress.Parse("127.0.0.1"); serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); ; serverSocket.Bind(new IPEndPoint(ip, myProt));//繫結IP地址:埠 serverSocket.Listen(10);//設定最多10個排隊連線請求 Console.WriteLine("啟動監聽{0}成功", serverSocket.LocalEndPoint.ToString()); //通過clientsocket傳送資料 Thread myThread = new Thread(ListenClientConnect); myThread.Start(); Console.ReadLine(); } //監聽客戶端連線 private static void ListenClientConnect() { while (true) { Socket clientsocket = serverSocket.Accept(); clientsocket.Send(Encoding.ASCII.GetBytes("server say hello")); Thread receiveThread = new Thread(ReceiveMessage); receiveThread.Start(clientsocket); } } //接收訊息 private static void ReceiveMessage(object clientSocket) { Socket myClientSocket = (Socket)clientSocket; while (true) { try { //通過clientsocket接收資料 int num = myClientSocket.Receive(result); Console.WriteLine("接收客戶端{0}訊息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, num)); } catch (Exception ex) { Console.WriteLine(ex.Message); myClientSocket.Shutdown(SocketShutdown.Both); myClientSocket.Close(); break; } } } } }
客戶端:
1:建立一個socket的物件socketclient(和伺服器一樣)
2:使用指定的埠號和伺服器的ip地址初始化System.Net.IPEndPoint類的例項(和伺服器一樣)
3:用socket對像socketclient的Connect()方法以上面建立的IPEndPoint對像做為引數,向伺服器發出連線請求;其中Connect的引數就是第二步IPEndPoint的例項
4:連線成功後,就可以進行通訊(Receive()和Send())
5:通訊結束後一定記得關閉socket,close()方法;
程式碼如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//--------------------------------
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace SocketTestClient
{
class Program
{
private static byte[] result = new byte[1024];
static void Main(string[] args)
{
//繫結伺服器IP地址
IPAddress ip = IPAddress.Parse("127.0.0.1");
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
clientSocket.Connect(new IPEndPoint(ip, 2000));
Console.WriteLine("連線伺服器成功");
}
catch
{
Console.WriteLine("連線伺服器失敗,請按回車鍵退出");
return;
}
//通過clientSocket接受資料
int num = clientSocket.Receive(result);
Console.WriteLine("接收伺服器訊息:{0}", Encoding.ASCII.GetString(result, 0, num));
//通過 clientSocket 傳送資料
for (int i = 0; i < 10; i++)
{
try
{
Thread.Sleep(1000); //等待1秒鐘
string sendMessage = "client send Message Hellp" + DateTime.Now;
clientSocket.Send(Encoding.ASCII.GetBytes(sendMessage));
Console.WriteLine("向伺服器傳送訊息:{0}" + sendMessage);
}
catch
{
clientSocket.Shutdown(SocketShutdown.Both);
clientSocket.Close();
break;
}
}
Console.WriteLine("傳送完畢,按回車鍵退出");
Console.ReadLine();
}
}
}
這只是通訊時伺服器和客戶端的最簡單的流程。