Example of Java socket byte stream transmission, using ocket

Example of Java socket byte stream transmission, using ocket

Server side:

 

Package com. yuan. socket; import java. io. *; import java.net. serverSocket; import java.net. socket;/*** Created by YUAN on 2016-09-17. */public class TalkServer4Byte {private ServerSocket server; private int port = 5020; public TalkServer4Byte () {try {server = new ServerSocket (port);} catch (IOException e) {}} public void talk () {System. out. println ("Monitoring port:" + port); Socket socket = null; while (tr Ue) {try {// blocking wait. A new connection instance socket = server is created every time a request is received. accept (); System. out. println ("Connect client address:" + socket. getRemoteSocketAddress (); // The decoration stream BufferedReader encapsulates the input stream (receives the stream from the client) BufferedInputStream bis = new BufferedInputStream (socket. getInputStream (); DataInputStream dis = new DataInputStream (bis); byte [] bytes = new byte [1]; // read a byte String ret = ""; while (dis. read (bytes )! =-1) {ret + = bytesToHexString (bytes) + ""; if (dis. available () = 0) {// one request doSomething (ret) ;}} catch (IOException e) {System. out. println (e. getMessage ();} finally {try {socket. close ();} catch (IOException e) {System. out. println (e. getMessage () ;}}} public static void doSomething (String ret) {System. out. println (ret);} public static String bytesToHexString (byte [] src) {StringBuilder stringBuilder = new StringBuilder (""); if (src = null | src. length <= 0) {return null;} for (int I = 0; I <src. length; I ++) {int v = src [I] & 0xFF; String hv = Integer. toHexString (v); if (hv. length () <2) {stringBuilder. append (0);} stringBuilder. append (hv);} return stringBuilder. toString ();} public static String BytesHexString (byte [] B) {String ret = ""; for (int I = 0; I <B. length; I ++) {String hex = Integer. toHexString (B [I] & 0xFF); if (hex. length () = 1) {hex = '0' + hex;} ret + = hex. toUpperCase ();} return ret;} public static void main (String [] args) {TalkServer4Byte server = new TalkServer4Byte (); server. talk ();}}

 

 

 

Client code:

 

Package com. yuan. socket; import java. io. dataInputStream; import java. io. dataOutputStream; import java. io. IOException; import java. io. inputStream; import java.net. inetSocketAddress; import java.net. socket; import java.net. socketAddress;/*** Created by YUAN on 2016-09-17. */public class TalkClient4Byte {private Socket socket; private SocketAddress address; public TalkClient4Byte () {try {socket = new Soc Ket (); address = new InetSocketAddress ("127.0.0.1", 5020); socket. connect (address, 1000);} catch (IOException e) {e. printStackTrace () ;}} public void talk () {try {// use DataInputStream to encapsulate the input stream InputStream OS = new DataInputStream (System. in); byte [] B = new byte [1]; DataOutputStream dos = new DataOutputStream (socket. getOutputStream (); while (-1! = OS. read (B) {dos. write (B); // send it to the client} dos. flush (); dos. close ();} catch (IOException e) {e. printStackTrace ();} finally {try {socket. close () ;}catch (IOException e) {}} public static void main (String [] args) {TalkClient4Byte client = new TalkClient4Byte (); client. talk ();}}