multiple client server chat program in java using swing

" "Client" " fromSocketImport*Host='localhost' #Local server addressPort = 12345#client port (ensure that the port is consistent with the serverBufsiz = 2048#Cache SizeADDC = (host, port)#address + PortUdpclisock= Socket (af_inet, SOCK_DGRAM)#Create a socket type for UDP. whiletrue:msg= Input ('The client says:')#inp

) {// TODO Auto-generated catch block e. printStackTrace ();}}} Demo process Problem: Java.net. SocketException: Socket is closed If you do not close the stream Delete this sentence bw. close (); Yes, the program will not go wrong, but it will always be closed. You can execute this sentence when the client window is closed. You can still send only one message but no error message. Why? Check the

");/*** the server sends a confirmation message */scannerscan=newscanner ( system.in); Stringsendmsg=sCan.next ();p w.println (sendmsg);p W.flush ();}} /*** client * @throws IOException* @throws unknownhostexception */publicstaticvoidclient () throwsUnknownHostException, IOEXCEPTION{//uses the socket to make a request to the specified machine and port socketsocket=newsocket ("192.168.1.101", 9999);/***2. Th

O (≧ mouth ≦) o just hit a lot of content, the results forget the network disconnected, unable to automatically save the draft. The results of the release of the contents have been lost. The air died, and did not write.Today is about the Java EE, speak quickly, mainly on the focus or is not the same as SE, just a bit, almost jumped over, let us see ppt ... (content not dropped) ...I made a simple chat room

This example for you to share the Java Chat Room code, for your reference, the specific contents are as follows Mainly involved in knowledge · Java GUI program writing, including event monitoring mechanism.· Java network communication Programming, the use of serversocket,s

Java online chat project version 0.8 provides the function of returning the information received by the server to each client window. The iterator will cause locking. The server adds the function of sending messages to each client

(); }; } @Override Public voidrun () {Try{//Note: to include a while loop, a socket closed exception occurs if the try is in the while loop while(connected) {String str=Dis.readutf (); System.out.println (str); for(intI=0;i) {Client C=Clients.get (i); C.send (str); } //For (iterator//Client C=it.next ();//method Two, not advis

", and the username is "Root Password" is "123456 ". 4. Start the server, execute the BAT file, and start the server in the following order: globalserver, recordserver, sessionserver, gatewayserver, and accountserver. it must be in this order. No error is allowed. Otherwise, restart is disabled. The default IP address of the demo program is 127.0.0.1, and the p

client program*/ Public classClientdemo { Public Static voidMain (string[] args)throwsioexception{//Create a Client socket object (ip/host name, port number)Socket S0 =NewSocket ("172.31.150.27", 12347); System.out.println ("Connection to server succeeded"); Scanner input=NewScanner (system.in); BooleanFlag =true; Pri

{thread.sleep (+);} catch (Interruptedexception e) {//TODO auto-generated catch Blocke.printstacktrace ();}}} catch (IOException e) {//TODO auto-generated catch Blocke.printstacktrace ();}}} public class MulclientSocketdemo {public static void main (string[] args) throws IOException {//TODO auto-generated method Stubint counter = 4;w Hile ((counter--) >0) {New Thread (new Threadclientsocket ()). Start ();;} Client.settcpnodelay (True);}}This implementation still has a lot of shortcomings, bette

slave serverIf (msg. Equals ("bye") // if the message sent by the customer is "bye", the communication ends.Break;}} Catch (ioexception e ){E. printstacktrace ();} Finally {Try {If (socket! = NULL) socket. Close (); // disconnect} Catch (ioexception e) {e. printstacktrace ();}}}Public static void main (string ARGs []) throws ioexception {New echoclient (). Talk ();}} Create an echoserver Package com. sockettest; Import java. Io. bufferedreader;I

fact, Java and the browser has already encapsulated, programmers just focus on the implementation of the business logic is OK, these do not have to care!!To understand the interaction principle, we look back at the original question, in fact, this question is not difficult to answer: JSP is ultimately compiled by the Java Web server into a servlet to execute, th

Recently wrote on the MyEclipse online chess code, including server side and client, let a friend to run the client after downloading, not even on the server I opened, but I shut down his firewall before he connected, I tried to set the program as a firewall credit procedure