Caros colegas.......sou novo no Forum e no Java e necessito a ajuda de voces............ estou desenvolvendo um programinha que tem 4 classes socket do tipo cliente/servidor. é uma classe servidor que fica escutando e qu…

Já tentou criar os objetos na inicialização do aplicativo ? Pelo que entendi você quer fazer alguma coisa do tipo : Dois clientes se comunicarem um envia uma mensagem e outro recebe , seria isso ?

Duvida em como chamar classe atraves de um botao

Ola…obrigado por responder…Sim e isso mesmo, mas a troca de mensagem ja funciona…o que nao consigo é fazer com que um botao de NewjApplet chame a clase ClienteCall, a classe serverChat consigo ativarla com:

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

new chatserver();

}

coloco abaixo as classes para possa me entender:

SERVERCHAT.JAVA

import java.awt.<em>;

import <a href="http://java.net">java.net</a>.</em>;

import <a href="http://java.io">java.io</a>.<em>;

import java.util.</em>;

public class chatserver extends Thread

{

int DEFAULT_PORT=4321;

protected int port;

protected ServerSocket server_port;

protected ThreadGroup CurrentConnections;

protected Vector connections;

protected ServerWriter writer;

private Calendar datatual;

//Crear un ServerSocket

public chatserver()

{

super(“Server”);

this.port=DEFAULT_PORT;

try

{

server_port=new ServerSocket(port);

}

catch (IOException e)

{

System.err.println(e+“Exception”);

}

//Crea un threadgroup para las conexiones

CurrentConnections=new ThreadGroup(“Server Connections”);

//Mensaje inicial en la ventana del servidor
System.out.println("=== &#65533;&#65533;&#65533; Conexiones Realizadas &#65533;&#65533;&#65533; ===");

//Un vetor para almacenar las conexiones
connections=new Vector();
writer=new ServerWriter(this);

//Inicia el servidor para oir las conexiones
this.start();

}

public void run()

{

try

{

while(true)

{

datatual = Calendar.getInstance();

Socket cliente_socket=server_port.accept();

//Exibe en la ventana del servidor los clientes que se conectan (mostra

//el host del cliente, el puerto y la fecha y hora de la conexion

System.out.println(“Host:”+cliente_socket.getInetAddress()+“� Porta:”+

cliente_socket.getPort()+"� "+datatual.getTime());

Connection c=new Connection(cliente_socket,CurrentConnections,3,writer);

//evita el acceso simultaneo

synchronized(connections)

{

//adiciona esta nueva conexion a la lista

connections.addElement©;

}

}

}

catch(IOException e)

{

System.err.println(e+“Exception”);

}

}

//Inicia el servidor

public static void main(String[] args)

{

new chatserver();

}

}

//----------------------------------------------------------------------------

class Connection extends Thread

{

static int numberOfConnections=0;

protected Socket client;

protected DataInputStream in;

protected PrintStream out;

protected ServerWriter writer;

public Connection(Socket cliente_socket, ThreadGroup CurrentConnections,

int priority, ServerWriter writer)

{

super(CurrentConnections,“Connection number”+numberOfConnections++);

//define la prioridad

this.setPriority(priority);

client=cliente_socket;

this.writer=writer;

try

{

//Atarraxa los streams a los streams de entrada y salida del socket del

//cliente y adiciona este outputstream al vetor que contiene todos

//los streams de salida, usados por el escritor writer

in=new DataInputStream(client.getInputStream());

out=new PrintStream(client.getOutputStream());

writer.OutputStreams.addElement(out);

}

catch(IOException e)

{

try

{

client.close();

}

catch (IOException e2)

{

System.err.println(“Exception while getting socket streams:”+e);

return;

}

}

//dispara Thread

this.start();

}

//El metodo run hace un lazo leyendo los mensajes recebidos

public void run()

{

String inline;

//Envia un mensaje de bienvenidao al cliente

out.println(“Bienvenido al MiniChat…”);

try

{

while(true)

{

//le una linea del mensaje

inline=in.readLine();

//La conexion es interrumpida si null

if (inline==null)

break;

//Pone la linea en el escritor writer

writer.setOutdata(inline);

synchronized(writer)

{

//llama el escritor synchronized() para evitar que dos lineas

//Connection o llamen a la vez. Esta es una forma de “bloqueo”.

writer.notify();

}

}

}

catch(IOException e)

{}

finally

{

try

{

client.close();

}

catch(IOException e2)

{}

}

}

}

//----------------------------------------------------------------------------

class ServerWriter extends Thread

{

protected chatserver server;

public Vector OutputStreams;

public String outdata;

private String outputline;

public ServerWriter(chatserver s)

{

super(s.CurrentConnections,“Server Writer”);

server=s;

OutputStreams=new Vector();

this.start();

}

public void setOutdata(String mensagem)

{

outdata=mensagem;

}

public synchronized void run()
{
while(true)
{
//La linea hace un lazo para siempre, pero la vedad solo es ejecutada
//cuando la condicion wait for reinicializada por un notify. Eso en un
//bloque sincronizado para bloquear la linea y evitar el acceso multiplo.
try
{
this.wait();
}
catch (InterruptedException e)
{
System.out.println(“Caught an Interrupted Exception”);
}
outputline=outdata;
synchronized(server.connections)
{
for (int i=0 ; i<OutputStreams.size() ; i++)
{
//Es impreso el mensaje en cada OutputStreams.
PrintStream out;
out=(PrintStream)OutputStreams.elementAt(i);
out.println(outputline);
}
}
}
}
}

CLIENTECALL.JAVA

import <a href="http://java.io">java.io</a>.<em>;

import <a href="http://java.net">java.net</a>.</em>;

import java.awt.<em>;

import java.applet.</em>;

public class ClienteCall extends Applet

{

public static final int DEFAULT_PORT=4321;

public Socket clisoc;

private Thread reader;

public TextArea OutputArea;

public TextField InputArea, nomefield;

public PrintStream out;

public String Name;

//Crea las lineas de lectura y escritura y las inicia.

public void init()

{

OutputArea=new TextArea(20,45);

InputArea=new TextField(45);

nomefield=new TextField(10);

//Tela da Applet
add(new Label("                  Chat usando conexion (Socket TCP)" ));
add(new Label("Nombre del usuario"));
add(nomefield);
add(OutputArea);
add(new Label("Teclee el Mensaje y presione ENTER"));
add(InputArea);
resize(350,490);
try
{
  //Crea un socket cliente pasando la direccion y el puerto del servidor
  clisoc=new Socket("127.0.0.1",DEFAULT_PORT);
  reader=new Reader(this, OutputArea);
  out=new PrintStream(clisoc.getOutputStream());
  //Define prioridades desiguales para que la consola sea compartida
  //de forma efectiva.
  reader.setPriority(3);
  reader.start();
}
catch(IOException e)
{
  System.err.println(e);
}

}

public boolean handleEvent(Event evt)

{

if (evt.target==InputArea)

{

char c=(char)evt.key;

if (c==’\n’)

//Vigila si el usuario presiona la tecla ENTER.

//Eso permite saber si el mensaje esta listo para ser enviado!

{

String InLine=InputArea.getText();

Name=nomefield.getText();

out.println(Name+">"+InLine);

InputArea.setText("");

//Envia el mensaje, pero añade el nombre del usuario al mensaje para que

//los otros clientes sepan quien a envio.

return true;

}

}

return false;

}

}

//----------------------------------------------------------------------------

//La clase Reader le la entrada del socket y actualiza la OutputArea con los

//nuevos mensajes.

class Reader extends Thread

{

protected ClienteCall cliente;

private TextArea OutputArea;

public Reader(ClienteCall c, TextArea OutputArea)

{

super(“chatclient Reader”);

this.cliente=c;

this.OutputArea=OutputArea;

}

public void run()
{
DataInputStream in=null;
String line;
try
{
in=new DataInputStream(cliente.clisoc.getInputStream());
while(true)
{
line=in.readLine();
//Añade un nuevo mensaje a la OutputArea
OutputArea.appendText(line+"\r\n");
}
}
catch(IOException e)
{
System.out.println(“Reader:”+e);
}
}
}

NEWAPPLET.JAVA

public class NewJApplet extends javax.swing.JApplet {

/** Initializes the applet NewJApplet */
public void init() {
    resize(455,380);
    try {
        java.awt.EventQueue.invokeAndWait(new Runnable() {
            public void run() {
                initComponents();
            }
        });
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

/** This method is called from within the init() method to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {

    jButton1 = new javax.swing.JButton();
    jButton2 = new javax.swing.JButton();
    jButton3 = new javax.swing.JButton();
    jButton4 = new javax.swing.JButton();
    jSeparator1 = new javax.swing.JSeparator();
    jSeparator2 = new javax.swing.JSeparator();
    jSeparator3 = new javax.swing.JSeparator();
    jLabel1 = new javax.swing.JLabel();
    jLabel2 = new javax.swing.JLabel();
    jLabel3 = new javax.swing.JLabel();
    jLabel4 = new javax.swing.JLabel();
    jLabel5 = new javax.swing.JLabel();
    jLabel6 = new javax.swing.JLabel();
    jButton5 = new javax.swing.JButton();

    setBackground(new java.awt.Color(204, 204, 204));

    jButton1.setText("Activar Server Chat");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton1ActionPerformed(evt);
        }
    });

    jButton2.setText("Activar Cliente Chat");
    jButton2.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton2ActionPerformed(evt);
        }
    });

    jButton3.setText("Activar Cliente Transfer");
    jButton3.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton3ActionPerformed(evt);
        }
    });

    jButton4.setText("Activar Server TransferChat");
    jButton4.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton4ActionPerformed(evt);
        }
    });

    jLabel1.setFont(new java.awt.Font("Bookman Old Style", 3, 14));
    jLabel1.setText("Mensajería");

    jLabel2.setFont(new java.awt.Font("Bookman Old Style", 3, 14));
    jLabel2.setText("Transferencia Ficheros");

    jLabel3.setFont(new java.awt.Font("Serif", 3, 18));
    jLabel3.setText("Práctica de Ingeníeria de Protocolos de Comunicación");

    jLabel4.setFont(new java.awt.Font("Serif", 3, 18));
    jLabel4.setText("2007/2008");

    jLabel5.setFont(new java.awt.Font("Arial", 0, 14));
    jLabel5.setText("Leandro C. Fumega");

    jLabel6.setFont(new java.awt.Font("Serif", 3, 18));
    jLabel6.setText("Facultad de Informática - UPM");

    jButton5.setText("Finalizar Aplicación");
    jButton5.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton5ActionPerformed(evt);
        }
    });

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jSeparator2, javax.swing.GroupLayout.DEFAULT_SIZE, 420, Short.MAX_VALUE)
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addGap(181, 181, 181)
            .addComponent(jLabel1)
            .addContainerGap(177, Short.MAX_VALUE))
        .addGroup(layout.createSequentialGroup()
            .addGap(36, 36, 36)
            .addComponent(jButton1)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 110, Short.MAX_VALUE)
            .addComponent(jButton2)
            .addGap(38, 38, 38))
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jSeparator1, javax.swing.GroupLayout.DEFAULT_SIZE, 420, Short.MAX_VALUE)
            .addContainerGap())
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap(131, Short.MAX_VALUE)
            .addComponent(jLabel2)
            .addGap(134, 134, 134))
        .addGroup(layout.createSequentialGroup()
            .addGap(19, 19, 19)
            .addComponent(jButton4)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 81, Short.MAX_VALUE)
            .addComponent(jButton3)
            .addGap(24, 24, 24))
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jSeparator3, javax.swing.GroupLayout.DEFAULT_SIZE, 420, Short.MAX_VALUE)
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addGap(98, 98, 98)
            .addComponent(jLabel6)
            .addContainerGap(102, Short.MAX_VALUE))
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jLabel3)
            .addGap(20, 20, 20))
        .addGroup(layout.createSequentialGroup()
            .addGap(177, 177, 177)
            .addComponent(jLabel4)
            .addContainerGap(186, Short.MAX_VALUE))
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap(313, Short.MAX_VALUE)
            .addComponent(jLabel5))
        .addGroup(layout.createSequentialGroup()
            .addGap(183, 183, 183)
            .addComponent(jButton5)
            .addContainerGap(136, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLabel6)
            .addGap(8, 8, 8)
            .addComponent(jLabel3)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
            .addComponent(jLabel4)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(jSeparator2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
            .addComponent(jLabel1)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jButton1)
                .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .addGap(18, 18, 18)
            .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(18, 18, 18)
            .addComponent(jLabel2)
            .addGap(18, 18, 18)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jButton4)
                .addComponent(jButton3))
            .addGap(18, 18, 18)
            .addComponent(jSeparator3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(18, 18, 18)
            .addComponent(jButton5)
            .addGap(11, 11, 11)
            .addComponent(jLabel5))
    );
}// </editor-fold>

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {

System.exit(0);

// TODO add your handling code here:

}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

// TODO add your handling code here:

new chatserver();

}

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:

AQUI QUERO CHAMARA CLASSE CLIENTE E QUE SE ABRA O SEU APPLET
AQUI QUERO CHAMARA CLASSE CLIENTE E QUE SE ABRA O SEU APPLET
AQUI QUERO CHAMARA CLASSE CLIENTE E QUE SE ABRA O SEU APPLET
}

private void jButton4ActionPerformed(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:

}

// Variables declaration - do not modify                     
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JSeparator jSeparator2;
private javax.swing.JSeparator jSeparator3;
// End of variables declaration

}

Duvida em como chamar classe atraves de um botao

Runtime.getRuntime().exec(“java clienteCall.java”);

ClienteCAll();

ClienteCall C = new ClienteCall();
C.start();

ClienteCall Cliente = new ClienteCall();
Cliente.setVisible(true);

ClienteCall C = new ClienteCall();
C.show();

2 Respostas

Runtime.getRuntime().exec(“java clienteCall.java”);

ClienteCAll();

ClienteCall C = new ClienteCall(); C.start();

ClienteCall Cliente = new ClienteCall(); Cliente.setVisible(true);

ClienteCall C = new ClienteCall(); C.show();

2 Respostas

Topicos relacionados

ClienteCall C = new ClienteCall();
C.start();

ClienteCall Cliente = new ClienteCall();
Cliente.setVisible(true);

ClienteCall C = new ClienteCall();
C.show();