Example of Java socket byte stream transmission

Server-side servers:

 PackageCom.yuan.socket;ImportJava.io.*;ImportJava.net.ServerSocket;ImportJava.net.Socket;/*** Created by YUAN on 2016-09-17.*/ Public classTalkserver4byte {PrivateServerSocket server; Private intPort = 5020;  PublicTalkserver4byte () {Try{Server=NewServerSocket (port); } Catch(IOException e) {}} Public voidTalk () {System.out.println ("Monitoring port:" +port); Socket Socket=NULL;  while(true) {            Try {                //blocking waits, creating a new connection instance each request is receivedSocket =server.accept (); System.out.println ("Connect client Address:" +socket.getremotesocketaddress ()); //Decorative Flow BufferedReader encapsulated input stream (receiving client's stream)Bufferedinputstream bis =NewBufferedinputstream (Socket.getinputstream ()); DataInputStream Dis=NewDataInputStream (bis); byte[] bytes =New byte[1];//read one byte at a timeString ret = "";  while(Dis.read (bytes)! =-1) {ret+ = bytestohexstring (bytes) + ""; if(dis.available () = = 0) {//a requestdosomething (ret); }                }            } Catch(IOException e) {System.out.println (E.getmessage ()); } finally {                Try{socket.close (); } Catch(IOException e) {System.out.println (E.getmessage ()); }            }        }    }         Public Static voiddosomething (String ret) {System.out.println (ret); }     Public StaticString bytestohexstring (byte[] src) {StringBuilder StringBuilder=NewStringBuilder (""); if(src = =NULL|| Src.length <= 0) {            return NULL; }         for(inti = 0; i < src.length; i++) {            intv = src[i] & 0xFF; String HV=integer.tohexstring (v); if(Hv.length () < 2) {stringbuilder.append (0);        } stringbuilder.append (HV); }        returnstringbuilder.tostring (); }     Public StaticString byteshexstring (byte[] b) {String ret= "";  for(inti = 0; i < b.length; i++) {String hex= Integer.tohexstring (B[i] & 0xFF); if(hex.length () = = 1) {hex= ' 0 ' +Hex; } ret+=hex.touppercase (); }        returnret; }     Public Static voidMain (string[] args) {talkserver4byte server=NewTalkserver4byte ();    Server.talk (); }}

Client-side code:

 PackageCom.yuan.socket;ImportJava.io.DataInputStream;ImportJava.io.DataOutputStream;Importjava.io.IOException;ImportJava.io.InputStream;Importjava.net.InetSocketAddress;ImportJava.net.Socket;Importjava.net.SocketAddress;/*** Created by YUAN on 2016-09-17.*/ Public classTalkclient4byte {Privatesocket socket; Privatesocketaddress address;  PublicTalkclient4byte () {Try{Socket=NewSocket (); Address=NewInetsocketaddress ("127.0.0.1", 5020); Socket.connect (Address,1000); } Catch(IOException e) {e.printstacktrace (); }    }     Public voidTalk () {Try {            //using the DataInputStream package input streamInputStream OS =NewDataInputStream (system.in); byte[] B =New byte[1]; DataOutputStream dos=NewDataOutputStream (Socket.getoutputstream ());  while(-1! =Os.read (b)) {Dos.write (b);//Send to client} dos.flush ();        Dos.close (); } Catch(IOException e) {e.printstacktrace (); } finally {            Try{socket.close (); } Catch(IOException e) {}}}  Public Static voidMain (string[] args) {talkclient4byte client=NewTalkclient4byte ();    Client.talk (); }}

Example of Java socket byte stream transmission