Socket (Java)

Client. Java

Public class client <br/>{< br/> Socket socket; <br/> bufferedreader in; <br/> printwriter out; <br/> Public client () <br/>{< br/> try {<br/> system. out. println ("try to connect to 127.0.0.1: 10000"); <br/> socket = new socket ("127.0.0.1", 10000); <br/> system. out. println ("the server connected! "); <Br/> system. out. println ("Please enter some character:"); <br/> bufferedreader line = new bufferedreader (New inputstreamreader (system. in); <br/> out = new printwriter (socket. getoutputstream (), true); <br/> out. println (line. readline (); <br/> In = new bufferedreader (New inputstreamreader (socket. getinputstream (); <br/> system. out. println (in. readline (); <br/> out. close (); <br/> in. close (); <br/> socket. close (); <br/>}< br/> catch (ioexception e) <br/>{< br/> out. println ("wrong"); <br/>}</P> <p> Public static void main (string [] ARGs) <br/>{< br/> new client (); <br/>}< br/>}

 

Server. Java

Public class server <br/>{< br/> private serversocket SS; <br/> private Socket socket; <br/> private bufferedreader in; <br/> private printwriter out; <br/> public server () <br/> {<br/> try {<br/> SS = new serversocket (10000); <br/> while (true) {<br/> socket = ss. accept (); <br/> string remoteip = socket. getinetaddress (). gethostaddress (); <br/> string remoteport = ":" + socket. getlocalport (); <br/> S Ystem. Out. println ("a client come in! IP: "+ remoteip + remoteport); <br/> In = new bufferedreader (New inputstreamreader (socket. getinputstream (); <br/> string line = in. readline (); <br/> system. out. println ("client send is:" + line); <br/> out = new printwriter (socket. getoutputstream (), true); <br/> out. println ("Your Message received ed! "); <Br/> out. println (""); <br/> out. close (); <br/> in. close (); <br/> socket. close (); <br/>}< br/> catch (ioexception e) {<br/> out. println ("wrong"); <br/>}</P> <p> Public static void main (string [] ARGs) <br/>{< br/> new server (); <br/>}< br/>}

 

After the server program is started, the client transmits strings