JTable'da Database'den Veri Listeleme (How to JTable list)

Merhaba arkadaşlar ben Emrah DEDEOĞLU bugün ki dersimizde JTable’da  database’den çekilen verileri listelemeyi anlatacağım

Projemizin Adı: EclipseJTable

Databaseimizin adı:  ders1

Tablomuzun adı: personel

Sutunları: id, adi, soyadi

TestWorking.java;

package tr.org.eclipseturkiye.emrah.test;

import javax.swing.SwingUtilities;

import tr.org.eclipseturkiye.emrah.db.RecordDao;

import tr.org.eclipseturkiye.emrah.ui.MainFrame;

public class TestWorking {

     

      public static void main(String[] args) {

           

            SwingUtilities.invokeLater(new Runnable() {

                 

                 

                  public void run() {

                       

                        new MainFrame();

                        RecordDao.initTable();

                  }

            });

      }

}

MainFrameGui.java Arayüz Kısmı

package tr.org.eclipseturkiye.emrah.ui;

import java.awt.BorderLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.JTextField;

import javax.swing.table.DefaultTableModel;

import tr.org.eclipseturkiye.emrah.db.RecordDao;

import tr.org.eclipseturkiye.emrah.domain.PersonelDomain;

public class MainFrame extends JFrame {

      public MainFrame() {

            initFrame();

      }

      public void initFrame() {

            JPanel panel = initPanel();

            add(panel);

            setTitle("eclipseturkiye.blogspot.com");

            pack();

            setVisible(true);

            setLocationRelativeTo(null);

            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      }

      public JPanel initPanel() {

            JPanel panel = new JPanel(new BorderLayout());

            JPanel kayitPanel = new JPanel(new GridLayout(3, 2, 2, 2));

            JLabel adiJLabel = new JLabel("Adı:", JLabel.RIGHT);

            kayitPanel.add(adiJLabel);

            final JTextField adiField = new JTextField(10);

            kayitPanel.add(adiField);

            JLabel soyadiJLabel = new JLabel("Soyadı:", JLabel.RIGHT);

            kayitPanel.add(soyadiJLabel);

            final JTextField soyadiField = new JTextField(10);

            kayitPanel.add(soyadiField);

            JButton kaydetButton = new JButton("Kaydet");

            kayitPanel.add(kaydetButton);

            kaydetButton.addActionListener(new ActionListener() {

                 

                 

                  public void actionPerformed(ActionEvent arg0) {

                       

                        PersonelDomain kisiDomain = new PersonelDomain();

                       

                        kisiDomain.setAdi(adiField.getText());

                        kisiDomain.setSoyadi(soyadiField.getText());

                       

                        RecordDao.insertUser(kisiDomain);

                        System.out.println("Kayıt Başarılı");

                  }

            });

           

            String dizi[] = { "id", "adi", "soyadi" };

            DefaultTableModel model = new DefaultTableModel(dizi, 0);

            JTable table = new JTable(model);

            JScrollPane pane = new JScrollPane(table);

           

           

            /**LİSTELEME ALGORİTMASI**/

           

            for(PersonelDomain list : RecordDao.listele()){

                 

                  model.addRow(list.getObjects());

                 

            }

           

           

            panel.add(kayitPanel, BorderLayout.CENTER);

            panel.add(pane, BorderLayout.SOUTH);

            return panel;

      }

}

PersonelDomain.java

package tr.org.eclipseturkiye.emrah.domain;

public class PersonelDomain {

     

      private int id;

      private String adi;

      private String soyadi;

      public int getId() {

            return id;

      }

      public void setId(int id) {

            this.id = id;

      }

      public String getAdi() {

            return adi;

      }

      public void setAdi(String adi) {

            this.adi = adi;

      }

      public String getSoyadi() {

            return soyadi;

      }

      public void setSoyadi(String soyadi) {

            this.soyadi = soyadi;

      }

     

     

      /**Listelemeyi Sağlamak object dizi döndüren method belirledik**/

      public Object [] getObjects(){

           

            Object [] listveriler = {id,adi,soyadi};

           

            return listveriler;

      }

}

RecordDao.java

package tr.org.eclipseturkiye.emrah.db;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

import java.util.ArrayList;

import java.util.List;

import tr.org.eclipseturkiye.emrah.domain.PersonelDomain;

public class RecordDao {

      private static String url = "jdbc:mysql://localhost/ders1?useUnicode=true&characterEncoding=UTF-8";

      private static String user = "root";

      private static String pass = "";

      static {

            try {

                  Class.forName("com.mysql.jdbc.Driver");

            } catch (ClassNotFoundException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

            }

      }

      public static Connection getConnection() {

            Connection conn = null;

            try {

                  conn = DriverManager.getConnection(url, user, pass);

            } catch (SQLException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

            }

            return conn;

      }

      public static void initTable() {

            try {

                  Connection conn = getConnection();

                  Statement sorgu = conn.createStatement();

                  sorgu.executeUpdate("CREATE TABLE personel(id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, adi VARCHAR (50) NOT NULL, soyadi VARCHAR(50) NOT NULL) ENGINE = MYISAM CHARACTER SET utf8 COLLATE utf8_turkish_ci");

                  sorgu.close();

                  conn.close();

            } catch (SQLException e) {

                  // TODO Auto-generated catch block

                  // e.printStackTrace();

            }

      }

      public static void insertUser(PersonelDomain kayit) {

            try {

                  Connection conn = getConnection();

                  Statement stmt = conn.createStatement();

                  stmt.executeUpdate("INSERT INTO personel (adi, soyadi) VALUES ('"

                             + kayit.getAdi() + "','" + kayit.getSoyadi() + "')");

                  stmt.close();

                  conn.close();

            } catch (SQLException e) {

                  // TODO Auto-generated catch block

                  // e.printStackTrace();

            }

      }

      public static List<PersonelDomain> listele() {

            List<PersonelDomain> liste = new ArrayList<PersonelDomain>();

            try {

                  Connection conn = getConnection();

                  Statement stmt = conn.createStatement();

                  ResultSet rs = stmt.executeQuery("SELECT * FROM personel");

                  while (rs.next()) {

                        PersonelDomain siradakiKisiDomain = new PersonelDomain();

                        siradakiKisiDomain.setId(rs.getInt("id"));

                        siradakiKisiDomain.setAdi(rs.getString("adi"));

                        siradakiKisiDomain.setSoyadi(rs.getString("soyadi"));

                        liste.add(siradakiKisiDomain);

                  }

                  stmt.close();

                  conn.close();

            } catch (SQLException e) {

                 

                  System.out.println(e);

            }

            return liste;

      }

}

Arkadaşlar kısaca projenin tüm kaynak kodları bu şekilde… bizim için önemli olan Üç kısım var.

Biri arayüz de listelemeyi sağlayan döngü, 2 Domainde object olarak verileri çekmeyi sağlayan Object dizi diğeri ise RecordDao da listeleme yapan kod;

Şimdi bu önemli yerleri sizinle paylaşıyorum;

Database Kısmı

public static List<PersonelDomain> listele() {

            List<PersonelDomain> liste = new ArrayList<PersonelDomain>();

            try {

                  Connection conn = getConnection();

                  Statement stmt = conn.createStatement();

                  ResultSet rs = stmt.executeQuery("SELECT * FROM personel");

                  while (rs.next()) {

                        PersonelDomain siradakiKisiDomain = new PersonelDomain();

                        siradakiKisiDomain.setId(rs.getInt("id"));

                        siradakiKisiDomain.setAdi(rs.getString("adi"));

                        siradakiKisiDomain.setSoyadi(rs.getString("soyadi"));

                        liste.add(siradakiKisiDomain);

                  }

                  stmt.close();

                  conn.close();

            } catch (SQLException e) {

                 

                  System.out.println(e);

            }

            return liste;

      }

}

Domain Kısmı;

/**Listelemeyi Sağlamak için object dizi döndüren method belirledik**/

      public Object [] getObjects(){

           

            Object [] listveriler = {id,adi,soyadi};

           

            return listveriler;

      }

}

Arayüz Kısmı;

/**LİSTELEME ALGORİTMASI

*for ile RecordDao class’ın da bulunan  listele methodunda ki veriler DefaultTable model içerisine atılıyor.

**/

           

            for(PersonelDomain list : RecordDao.listele()){

                 

                  model.addRow(list.getObjects());

                 

            }

Bu üç durumu gerçekleştirdikten sonra JTable da veriler listelenecektir.

Kısaca JTable’da listeleme bu şekilde gerçekleşmektedir.

Not: Bu Ders Emrah DEDEOĞLU tarafından yazılmıştır içerisinde kullanılan örnekler denenmiş ve olumlu sonuç alınmıştır.

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