ارتباط بین Qt و جاو

[tanzadeh7]

سلام من یه نرم افرار کیوت نوشتم که به سرور TCP که با جاوا ایجاد کردم وصل میشه و یه متن رو توش مینویسه.

Qt :


#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QString>
#include <QByteArray>
#include <QFile>
#include <QTextStream>
#include <QTcpSocket>


using namespace std;
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}


MainWindow::~MainWindow()
{
delete ui;


}
void MainWindow::on_pushButton_2_clicked()
{
QTcpSocket q;
q.connectToHost("127.0.0.1",9090);
q.write(QString(ui->msg->text()).toUtf8());
}




Java :



package server;


import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
public class Server extends javax.swing.JFrame implements KeyListener {


ServerSocket ss;
Socket s;
DataInputStream dis;
DataOutputStream dos;


public Server() {
initComponents();
jLabel2.setVisible(false);


KeyListener keyListener = this;
KeyListener keyListener1;
keyListener1 = new KeyListener() {


@Override
public void keyTyped(KeyEvent e) {


}


@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyText(e.getKeyCode()) == "Enter") {
if (jTextField1.getText() != "") {
try {
Start();
} catch (IOException ex) {
Logger.getLogger(Server.class.getName()).log(Level .SEVERE, null, ex);
}
}
}
}


@Override
public void keyReleased(KeyEvent e) {


}
};
jTextField1.addKeyListener(keyListener1);
jTextField2.addKeyListener(keyListener);
setFocusable(true);
}


public void get() throws IOException {
jTextArea1.append(dis.readUTF());


}


public void send(String s) throws IOException {
dos.writeUTF(s);
dos.flush();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {


jRadioButton1 = new javax.swing.JRadioButton();
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jTextField2 = new javax.swing.JTextField();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jLabel2 = new javax.swing.JLabel();


jRadioButton1.setText("jRadioButton1");


setDefaultCloseOperation(javax.swing.WindowConstan ts.EXIT_ON_CLOSE);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowOpened(java.awt.event.WindowEvent evt) {
formWindowOpened(evt);
}
});


jLabel1.setText("Port : ");


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


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


jTextArea1.setEditable(false);
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);


jLabel2.setText("Pleas wait");


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()
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 600, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addComponent(jTextField2)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 60, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(jTextField1)))
.addContainerGap())
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_S IZE, Short.MAX_VALUE)
.addComponent(jLabel2)
.addGap(26, 26, 26))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout .Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 369, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);


pack();
}// </editor-fold>
public void Start() throws IOException {
Thread t = new Thread(new Runnable() {


@Override
public void run() {


try {
jButton1.setEnabled(false);
jTextField1.setEnabled(false);
ss = new ServerSocket(Integer.parseInt(jTextField1.getText( )));
jLabel2.setVisible(true);
s = ss.accept();


dis = new DataInputStream(s.getInputStream());
dos = new DataOutputStream(s.getOutputStream());
jButton1.setEnabled(false);
Thread t1 = new Thread(new Runnable() {


@Override
public void run() {
while (true) {
try {
get();
} catch (IOException ex) {
Logger.getLogger(Server.class.getName()).log(Level .SEVERE, null, ex);
}
}
}
});
t1.start();
jLabel2.setVisible(false);


} catch (Exception ex) {
JOptionPane.showMessageDialog(rootPane, ex.getMessage());
jButton1.setEnabled(true);
jTextField1.setEnabled(true);


}
}
});
t.start();
}
private void formWindowOpened(java.awt.event.WindowEvent evt) {


}


private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
try {
Start();
} catch (IOException ex) {
Logger.getLogger(Server.class.getName()).log(Level .SEVERE, null, ex);
}


}


private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
try {
send("\nServer : " + jTextField2.getText());
jTextArea1.append("\nServer : " + jTextField2.getText());
jTextField2.setText(null);


} catch (IOException ex) {
Logger.getLogger(Server.class.getName()).log(Level .SEVERE, null, ex);
}
}


public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClass Name());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Server.class.ge tName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Server.class.ge tName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Server.class.ge tName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Server.class.ge tName()).log(java.util.logging.Level.SEVERE, null, ex);
}
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Server().setVisible(true);
}
});
}


@Override
public void keyTyped(KeyEvent e) {


}


@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyText(e.getKeyCode()) == "Enter") {
if (s != null) {
if (s.isConnected()) {


try {
send("\n Server : " + jTextField2.getText());
jTextArea1.append("\n Server : " + jTextField2.getText());
jTextField2.setText(null);


} catch (IOException ex) {
Logger.getLogger(Client.class.getName()).log(Level .SEVERE, null, ex);
}
}
}


}
}


@Override
public void keyReleased(KeyEvent e) {


}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JRadioButton jRadioButton1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
}



وقتی متن رو توی سرور مینویسم این خطا رو میده



SEVERE: null
java.io.EOFException
at java.io.DataInputStream.readUnsignedShort(DataInpu tStream.java:340)
at java.io.DataInputStream.readUTF(DataInputStream.ja va:589)
at java.io.DataInputStream.readUTF(DataInputStream.ja va:564)
at server.Server.get(Server.java:71)
at server.Server$5$1.run(Server.java:197)
at java.lang.Thread.run(Thread.java:745)

[stackprogramer]

سلام،کد جاوا را جدا کامپایل کردید،احساس،می کنم کد جاوا مشکل دارد،داخل یک اکلیپس جاوا ران کنید؟
علتش داخله،لینک زیر یک نگاه بینداز،
http://stackoverflow.com/questions/7666997/java-io-eofexception-when-trying-to-perform-java-socket-operations

[tanzadeh7]

سلام،کد جاوا را جدا کامپایل کردید،احساس،می کنم کد جاوا مشکل دارد،داخل یک اکلیپس جاوا ران کنید؟
علتش داخله،لینک زیر یک نگاه بینداز،
http://stackoverflow.com/questions/7666997/java-io-eofexception-when-trying-to-perform-java-socket-operations

مشکل خطا حل شد ولی یه مشکلی دیگه اینه که چیزی که Qt در سوکت مینویسه در JTextArea اضافه نمیشه

[stackprogramer]

سلام این یعنی پیام به درستی از کیوت به جاو نرسیده،اخر پیامی که می فرستی سعی کن،یک n\ اخر پیام یا گاهاr \ بگذاری،تا فرایند تمام شدن پیام،تعریف بشه،مثل داخل کد جاوا ت این تکه>>

send("\n Server : " + jTextField2.getText());