programmation réseau "client/serveur"

Question

je suis debutante en programmation réseau je veut faire un programme qui envoi des messages entre 1 client et 1 serveur j'ai le code :
 
code client

import java.io.*;
import java.net.*;
public class Client {
static final int port= 8081;
public static void main(String []argv)throws Exception{
String str="salut serveur",rec1;
Socket s1=new Socket("127.0.0.1",port);
BufferedReader in1=new BufferedReader(new InputStreamReader(s1.getInputStream()));
PrintWriter out1=new PrintWriter(new BufferedWriter(new OutputStreamWriter(s1.getOutputStream())),true);
out1.println(str);
rec1=in1.readLine();
System.out.println(rec1);
s1.close();
}
} 
le serveur va lire le message du client et lui envoie salut client

 code serveur  
import java.io.*;
import java.net.*;
public class Serveur {
static final int port =8081;
public static void main(String []argv) throws Exception
{String str;
ServerSocket serv = new ServerSocket(port);
System.out.println("serveur en attente de connexion sur lengthport:"+port);
Socket serr=serv.accept();
System.out.println("connexion acceptée pour le client");
BufferedReader in=new BufferedReader(new InputStreamReader(serr.getInputStream()));
PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(serr.getOutputStream())),true);
System.out.println("flux ouvert,serveur pret a recevoir");
str=in.readLine();
out.println("salut client");
serr.close();
serv.close();
}
}
je veux ajouter dans la partie serveur "quel est votre nom" (le serveur pose cet question) et le client répond "mon nom est nom_CLIENT"
pouvez vous m'aidez ?? 
merci pour votre collaboration

hosni83 · Answer

je suis treeeees faché
aloui hosni

chouchounoussa11 · Answer

chouou Salut, J'ai modifié, un petit peu,votre code et j'ai utilisé deux fenetre(Serveur/Client)avec deux champs de texte pour chacune afin de saisir le msg à envoyer et à recevoir: /////***********************Client: import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.Socket; /* * To change this template, choose Tools | Templates * and open the template in the editor. */ /* * Client.java * * Created on 2 avr. 2010, 22:28:44 */ /** * * */ public class Client extends javax.swing.JFrame { int port=8081; /** Creates new form Client */ public Client() { initComponents(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // private void initComponents() { jButton1 = new javax.swing.JButton(); jTextField1 = new javax.swing.JTextField(); jTextField2 = new javax.swing.JTextField(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("Client"); jButton1.setText("envoyer"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addContainerGap(47, Short.MAX_VALUE) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 138, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(115, 115, 115) .addComponent(jButton1) .addGap(27, 27, 27)) .addGroup(layout.createSequentialGroup() .addGap(102, 102, 102) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 175, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(123, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(48, 48, 48) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton1) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(74, 74, 74) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE) .addContainerGap(72, Short.MAX_VALUE)) ); pack(); }// private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: try { String rec1; Socket s1=new Socket("127.0.0.1",port); BufferedReader in1=new BufferedReader(new InputStreamReader(s1.getInputStream())); PrintWriter out1=new PrintWriter(new BufferedWriter(new OutputStreamWriter(s1.getOutputStream())),true); out1.println(jTextField1.getText()); rec1=in1.readLine(); jTextField2.setText(rec1); s1.close(); } catch(Exception e){} } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new Client().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2; // End of variables declaration /////////////*********************Serveur: import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; /* * To change this template, choose Tools | Templates * and open the template in the editor. */ /* * Serveur.java * * Created on 2 avr. 2010, 22:31:42 */ /** * * */ public class Serveur extends javax.swing.JFrame { int port=8081; /** Creates new form Serveur */ public Serveur() throws IOException { initComponents(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // private void initComponents() { jButton1 = new javax.swing.JButton(); jTextField1 = new javax.swing.JTextField(); jTextField2 = new javax.swing.JTextField(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jButton1.setText("envoyer"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setText("quitter"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jButton3.setText("cancel"); jButton3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton3ActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addGap(93, 93, 93) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 37, Short.MAX_VALUE) .addComponent(jButton1) .addGap(90, 90, 90)) .addGroup(layout.createSequentialGroup() .addGap(123, 123, 123) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 156, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jButton2)) .addGroup(layout.createSequentialGroup() .addGap(20, 20, 20) .addComponent(jButton3))) .addContainerGap(38, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(44, 44, 44) .addComponent(jButton1)) .addGroup(layout.createSequentialGroup() .addGap(55, 55, 55) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addGap(71, 71, 71) .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 96, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(layout.createSequentialGroup() .addGap(90, 90, 90) .addComponent(jButton2) .addGap(44, 44, 44) .addComponent(jButton3))) .addContainerGap(45, Short.MAX_VALUE)) ); pack(); }// private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: try { ServerSocket serv = new ServerSocket(port); Socket serr=serv.accept(); BufferedReader in=new BufferedReader(new InputStreamReader(serr.getInputStream())); PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(serr.getOutputStream())),true); jTextField2.setText(in.readLine()); out.println(jTextField1.getText()); serr.close(); serv.close(); } catch(Exception e){} } private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: jTextField2.setText(""); } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { try{ new Serveur().setVisible(true);} catch(IOException e){} } }); } // Variables declaration - do not modify private javax.swing.JButton jButton3; private javax.swing.JTextField jTextField1; private javax.swing.JTextField jTextField2; // End of variables declaration } ///**********vous pouvez amiliorer plus ce code

Programmation réseau "client/serveur"

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