Bonjour,
Je suis entrain de réaliser un serveur socket , qui doit réceptionner les requests client et répondre à leurs demandes.
Mais mon serveur ne répond qu'au premier client , si je lance une deuxième socket client rien ne se passe.
Je suis vraiment bloqué
Voici mon code serveur :
Mon code client :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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154 package com.cit.xDR.test; import java.io.IOException; import java.net.InetSocketAddress; import java.nio.ByteBuffer; import java.nio.CharBuffer; import java.nio.channels.SelectionKey; import java.nio.channels.Selector; import java.nio.channels.ServerSocketChannel; import java.nio.channels.SocketChannel; import java.nio.charset.Charset; import java.util.HashMap; import java.util.Iterator; public class NIOEchoServer { private ServerSocketChannel serverchannel ; private Selector selector ; private HashMap<SocketChannel,ByteBuffer> queuedWrites = new HashMap<SocketChannel,ByteBuffer>() ; public static void main(String[] args) { NIOEchoServer n = new NIOEchoServer() ; n.run(); } public void run() { try { serverchannel = ServerSocketChannel.open() ; serverchannel.configureBlocking(false) ; serverchannel.socket().bind(new InetSocketAddress("localhost",10081)); selector = Selector.open(); serverchannel.register(selector, SelectionKey.OP_ACCEPT) ; while(true) { try { //System.out.println("Before Communicator"); //new Communicator(selector).start(); selector.select() ; Iterator<SelectionKey> keysIterator = selector.selectedKeys().iterator() ; while(keysIterator.hasNext()) { SelectionKey key = keysIterator.next(); keysIterator.remove(); if (key.isAcceptable()) { ServerSocketChannel ssc = (ServerSocketChannel)key.channel(); SocketChannel sc = ssc.accept(); sc.configureBlocking( false ); //Communicator com = new Communicator(key); sc.register( selector, SelectionKey.OP_READ); // com.start(); } else if (key.isReadable()) { SocketChannel sc = (SocketChannel)key.channel(); ByteBuffer readBuffer = ByteBuffer.allocate(8192); int numread ; while (true) { // readBuffer.clear(); numread = sc.read( readBuffer ); if (numread <=0) { break; } } if (numread == -1) { // Remote entity shut the socket down cleanly. Do the // same from our end and cancel the channel. key.channel().close(); key.cancel(); continue ; } System.out.println("Read :" + numread + " " + new String(readBuffer.array())) ; readBuffer.flip() ; queuedWrites.put(sc,readBuffer) ; key.interestOps(SelectionKey.OP_WRITE) ; } else if (key.isWritable()) { SocketChannel sc = (SocketChannel)key.channel(); ByteBuffer towrite = queuedWrites.get(sc) ; System.out.println("Echoing :" + new String(towrite.array())) ; ByteBuffer resp = ByteBuffer.wrap("ACK".getBytes()); while (true) { int n = sc.write(resp) ; if (n == 0 || resp.remaining() == 0) break ; } key.interestOps(SelectionKey.OP_READ) ; } } } catch (Exception e) { } } } catch(IOException e) { System.out.println(e) ; } } // private void waitForCalls() throws IOException { // new Communicator(selector).start(); // } }
Si quelqu'un peut m'aider , je serais vraiment reconnaissant !
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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164 package com.cit.xDR.test; import java.io.IOException; import java.net.InetSocketAddress; import java.nio.ByteBuffer; import java.nio.channels.SelectionKey; import java.nio.channels.Selector; import java.nio.channels.SocketChannel; import java.util.ArrayDeque; import java.util.Deque; import java.util.Iterator; public class NIOEchoClient { private SocketChannel clientChannel ; private Selector selector ; public Deque<String> writeQueue = new ArrayDeque<String>() ; private ByteBuffer readBuf = ByteBuffer.allocate(8192) ; public static void main(String[] args) { // TODO Auto-generated method stub NIOEchoClient nm = new NIOEchoClient() ; try { nm.init() ; nm.run(); } catch(IOException e) { System.out.println(e) ; } } public void init() throws IOException { selector = Selector.open() ; clientChannel = SocketChannel.open(); clientChannel.configureBlocking(false); // Kick off connection establishment clientChannel.connect(new InetSocketAddress("localhost", 10081)); clientChannel.register(selector, SelectionKey.OP_CONNECT) ; } public void run() { int i = 0 ; boolean done = false ; try { while(true) { writeQueue.add("This is line " + i) ; selector.select() ; Iterator<SelectionKey> skeys = selector.selectedKeys().iterator() ; while (skeys.hasNext()) { SelectionKey key = (SelectionKey) skeys.next(); skeys.remove(); if (!key.isValid()) { continue; } // Check what event is available and deal with it if (key.isConnectable()) { finishConnection(key); } else if (key.isReadable()) { read(key); // done = true ; } else if (key.isWritable()) { write(key); } } i++ ; if (i == 10) break ; } } catch(IOException e) { System.out.println(e) ; } } private void finishConnection(SelectionKey key) throws IOException { clientChannel.finishConnect() ; key.interestOps(SelectionKey.OP_WRITE) ; } private void write(SelectionKey key) throws IOException { String toWrite = writeQueue.pollFirst() ; System.out.println("writing :" + toWrite) ; if (toWrite != null) { ByteBuffer b ; b = ByteBuffer.wrap(toWrite.getBytes()) ; // b.flip(); while (true) { int n = clientChannel.write(b) ; if (n == 0 || b.remaining() == 0) break ; } } key.interestOps(SelectionKey.OP_READ) ; } public void read(SelectionKey key) throws IOException { readBuf.clear() ; while (true) { // readBuffer.clear(); int numread = clientChannel.read( readBuf ); if (numread <=0) { break; } } System.out.println("Read Echo from server:" + new String(readBuf.array())) ; key.interestOps(SelectionKey.OP_WRITE) ; } }
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