C # Socket Thread

The original version was this: Click to open the link. But has not been adjusted well, so I consulted a colleague Xiang elder brother, the final preliminary fix!

Client code:

Using system;using system.collections.generic;using system.componentmodel;using system.data;using System.Drawing; Using system.linq;using system.text;using system.windows.forms;using system.net.sockets;using System.Threading; Using system.net;using system.diagnostics;namespace socketclient{public partial class Client:form {so        Cket Vsserversocket;        Thread Vsclientthread;        String StrIP = "127.0.0.1";        public delegate void Passstring (string strMsg);        int nport = 9001;        Public Client () {InitializeComponent ();            public void Setsenddata (string strMsg) {if (tboxclientsend.invokerequired = = True)                {passstring d = new passstring (setsenddata); This.            Invoke (d, new object[] {STRMSG});            } else {tboxclientsend.text = STRMSG; }} public void Setrecvdata (string strMsg) {iF (tboxclientreceive.invokerequired = = True) {passstring d = new passstring (setrecvdata); This.            Invoke (d, new object[] {STRMSG});            } else {tboxclientreceive.text = STRMSG; }} private void Clienthandle () {string strrecv = string.            Empty;            IPEndPoint is actually an IP address and port binding, can represent a service, used for socket communication. There is a Parse () method in the IPAddress class that converts the dotted decimal IP representation to the IPAddress class IPEndPoint Ipep = new IPEndPoint (Ipaddress.parse (StrIP),            Nport); Create a socket instance//when created here, use PROTOCOLTYPE.TCP to create a connection-oriented (TCP) socket vsserversocket = new Socket (addressfamil            Y.internetwork, SocketType.Stream, protocoltype.tcp);            try {//binds the created socket to the IPEndPoint vsserversocket.bind (IPEP); } catch (SocketException ex) {MessageBox.Show ("Connect Error:" + ex.    Message);            Return            } byte[] buffer = new byte[1024];            Set socket to listen mode Vsserversocket.listen (10);                               Loop listen while (true) {//Receive server information int buflen = 0;                    try {Socket vsclientsocket = vsserversocket.accept ();                    buflen=vsclientsocket.receive (buffer);                                  Vsclientsocket.send (Encoding.ASCII.GetBytes ("AAAAA"), 5, Socketflags.none); } catch (Exception ex) {MessageBox.Show ("Receive Error:" + ex.)                                   Message);                } STRRECV = Encoding.ASCII.GetString (buffer, 0, Buflen);                                Setrecvdata (STRRECV);                Vsclientsocket.shutdown (Socketshutdown.both);            Vsclientsocket.close (); }}//Send data private void BTNsend_click (object sender, EventArgs e) {byte[] data = new byte[1024];            string ss = Tboxclientsend.text;            Socket centerclient = new socket (addressfamily.internetwork, SocketType.Stream, protocoltype.tcp);            IPEndPoint gsserver = new IPEndPoint (Ipaddress.parse ("127.0.0.1"), 9002);            Centerclient.connect (Gsserver);            Centerclient.send (Encoding.ASCII.GetBytes (ss));        Centerclient.close (); private void Client_load (object sender, EventArgs e) {///connection server//through ThreadStart delegate to tell the child line            What method vsclientthread = new Thread (new ThreadStart (Clienthandle));        Vsclientthread.start ();            }//When the form is closed kill client process private void Client_formclosing (object sender, FormClosingEventArgs e) {        KillProcess (); }//Kill client process private void KillProcess () {process[] processes = Process.getprocessesbyname (   "Socketclient");         foreach (process process in processes) {process.                Kill ();            Break }        }    }}

Service-Side code:

Using system;using system.collections.generic;using system.componentmodel;using system.data;using System.Drawing; Using system.linq;using system.text;using system.windows.forms;using system.threading;using System.Net.Sockets;  Using system.net;using system.diagnostics;namespace socketserver{public partial class Server:form {Thread        Vsserverthread;              Socket Vsserversocket;        String StrIP = "127.0.0.1";             public delegate void Passstring (string strMsg);        int nport = 9002;        Public Server () {InitializeComponent (); private void Seversenddata (string strMsg) {//control.invokerequired property, namespace: system.windows.f            Orms//Gets a value that indicates whether the caller must call the Invoke method when making a method call to the control, because the call is in a thread other than the one on which the control is created. if (tboxserversend.invokerequired = = True) {//control.invoke method (Delegate)//in the owning                Executes the specified delegate on the thread of this control's underlying window handle. Passstring d = new Passstring (SeVersenddata); This.            Invoke (d, new object[] {STRMSG});            } else {tboxserversend.text = STRMSG; }} private void Severrecvdata (string strMsg) {if (tboxserverreceive.invokerequired = = TR                UE) {passstring d = new passstring (severrecvdata); This.            Invoke (d, new object[] {STRMSG});            } else {tboxserverreceive.text = STRMSG; }} private void ServerStart () {string strrecv = string.            Empty;            Create IPEndPoint instance IPEndPoint Ipep = new IPEndPoint (Ipaddress.parse (StrIP), nport);            Create a socket Vsserversocket = new socket (addressfamily.internetwork, SocketType.Stream, protocoltype.tcp);            Binds the created socket to IPEndPoint with the try {vsserversocket.bind (IPEP); } catch (ExceptIon ee) {MessageBox.Show (EE).                ToString ());            Return            }//Set socket for listening mode Vsserversocket.listen (10);            int buflen = 0; Loop listen while (true) {//Receive access connections on sockets socket Vsclientsocket = Vsserve                     Rsocket.accept ();                    try {byte[] buffer = new byte[1024];                    Receive the information sent by the client on the socket Buflen = vsclientsocket.receive (buffer);                    Vsclientsocket.send (Encoding.ASCII.GetBytes ("AAAAA"), 5, Socketflags.none);                       if (Buflen = = 0) continue;                    Decodes a sequence of bytes from a specified byte array into a string.                    STRRECV = Encoding.ASCII.GetString (buffer, 0, Buflen);                Severrecvdata (Strrecv.tostring ()); } catch (Exception ex) {MesSagebox.show ("Listening Error:" + ex.)                    Message);                    Vsclientsocket.close ();                Vsserversocket.close (); }}} private void Btnsend_click (object sender, EventArgs e) {byte[] data = NE            W byte[1024];            string ss = Tboxserversend.text;            Socket centerclient = new socket (addressfamily.internetwork, SocketType.Stream, protocoltype.tcp);            IPEndPoint gsserver = new IPEndPoint (Ipaddress.parse ("127.0.0.1"), 9001);            Centerclient.connect (Gsserver);            Centerclient.send (Encoding.ASCII.GetBytes (ss));            Centerclient.send (Encoding.ASCII.GetBytes (ss));            Thread.Sleep (100);        Centerclient.close (); } private void Server_load (object sender, EventArgs e) {vsserverthread = new Thread (New THREADST            Art (ServerStart));        Vsserverthread.start (); }//Kill client process when form closes private void Server_formcloSing (object sender, FormClosingEventArgs e) {killprocess (); }//Kill client process private void KillProcess () {process[] processes = Process.getprocessesbyname (            "Server"); foreach (process process in processes) {process.                Kill ();            Break }        }    }}

The effect is as follows:

The client can send a message to the server, and the server can send a message to the client.

Disadvantages:

Now the server can only connect to one client

The above is the content of the C # Socket thread, more relevant content please pay attention to topic.alibabacloud.com (www.php.cn)!

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