Using UDP communication instances in C #

The UDP communication in the network communication protocol is non-connected communication, the client does not need to establish a connection with the server before sending the data, even if the server is not online, it can not guarantee that the server can receive the data. This example is a C # implementation-based UDP communication. The specific function code is as follows:

The server-side code is as follows:

static void Main (string[] args) {  udpclient client = null;  string receivestring = null;  byte[] receivedata = null;  Instantiate a remote endpoint, IP and port can be arbitrarily specified, and so on call client. Receive (ref Remotepoint) changes the endpoint to a true send end endpoint  ipendpoint remotepoint = new IPEndPoint (ipaddress.any, 0);  while (true)  {client = new UdpClient (11000); receivedata = client. Receive (ref Remotepoint);//received Data Receivestring = Encoding.Default.GetString (Receivedata); Console.WriteLine (receivestring); Client. Close ();//Closed Connection  }}

The client code is as follows:

static void Main (string[] args) {  string sendstring = null;//string to send  byte[] senddata = null;//byte array  to send UdpClient client = null;  IPAddress Remoteip = Ipaddress.parse ("127.0.0.1");  int remoteport = 11000;  IPEndPoint remotepoint = new IPEndPoint (REMOTEIP, remoteport);//Instantiate a remote endpoint while  (true)  {sendstring = Console.ReadLine (); SendData = Encoding.Default.GetBytes (sendstring); Client = new UdpClient (); Client. Send (SendData, senddata.length, remotepoint);//Sends data to the remote endpoint client. Close ();//Closed Connection  }}

The final operation of the program is as follows:

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Using UDP communication instances in C #

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Using UDP communication instances in C #