( INTEGRASI PEMROGRAMAN JAVA DENGAN DATABASE MYSQL )Disusun Oleh
:Dosen STMIK SumedangATEP RUHIAT, M.KOM.Pemrograman Berorientasi
ObjekDosen : Atep Ruhiat, M.Kom.STMIK Sumedang1MODUL PRAKTIKUM
PEMROGRAMAN BERORIENTASI OBJEK( INTEGRASI PEMROGRAMAN JAVA DENGAN
DATABASE MYSQL )1. Membuat Database MySQL (http:/ / localhost/
phpmyadmin/ )1). 2).3).2. Membuat Project1). 2).3). 4).Pemrograman
Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK Sumedang23.
Menambahkan MySQL Connector Java1). 2).3).4. Membuat Paket dan
Filea. Keperluan Paket dan FileNo Paket File Keterangan1 koneksi
koneksi_database.java Java Java Aplication2 kelola
kelola_barang.java Java Java Aplication3 aplikasi
menu_manajemen_barang.java Swing GUI Forms JFrame
Forminput_barang.javaubah_barang.javahapus_barang.javatampil_barang.javab.
Hasil Pembuatan Paket dan FilePemrograman Berorientasi ObjekDosen :
Atep Ruhiat, M.Kom.STMIK Sumedang35. Kode Program Paket koneksi dan
kelolaa. koneksi_database.javapackage koneksi;import
com.mysql.jdbc.Driver;import java.sql.DriverManager;import
java.sql.Connection;import java.sql.SQLException;public class
koneksi_database {private static Connection koneksi;public static
Connection getkoneksi(){if (koneksi==null){try {Driver driver = new
Driver();DriverManager.registerDriver(driver);String
url="jdbc:mysql://localhost/dbmaster";String user="root";String
pass="";koneksi = DriverManager.getConnection(url, user,
pass);System.out.println("Koneksi berhasil");} catch (SQLException
e) {System.out.println("Pesan
:"+e.getMessage());System.out.println("Koneksi gagal");}}return
koneksi;}}b. kelola_barang.javapackage kelola;import
java.sql.Connection;import java.sql.Statement;import
java.sql.SQLException;import koneksi.koneksi_database;public class
kelola_barang{private Connection koneksi;public
kelola_barang(){koneksi=koneksi_database.getkoneksi();}public void
insert(String kd, String nm, int jml, long hrg){Statement statement
= null;try {statement = koneksi.createStatement();String url =
"INSERT INTO
barangVALUES('"+kd+"','"+nm+"',"+jml+","+hrg+")";statement.executeUpdate(url);Pemrograman
Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang4System.out.println("Penyimpanan berhasil");} catch
(SQLException e) {System.out.println("Penyimpanan
gagal");System.out.println("Pesan :"+e.getMessage());}finally{if
(statement!=null){try{statement.close();System.out.println("Statement
berhasil ditutup");}catch(SQLException
e){System.out.println("Statement gagal
ditutup");System.out.println("Pesan :"+e.getMessage());}}}}public
void update(Object kd, String nm, int jml, long hrg){Statement
statement = null;try {statement = koneksi.createStatement();String
url = "UPDATE barang SET nama_barang='"+nm+"',"+
"jumlah="+jml+",harga="+hrg+" WHERE
kode_barang='"+kd+"'";statement.executeUpdate(url);System.out.println("Perubahan
berhasil");} catch (SQLException e) {System.out.println("Perubahan
gagal");System.out.println("Pesan :"+e.getMessage());}finally{if
(statement!=null){try{statement.close();System.out.println("Statement
berhasil ditutup");}catch(SQLException
e){System.out.println("Statement gagal
ditutup");System.out.println("Pesan :"+e.getMessage());}}}}public
void delete(Object kd){Statement statement = null;try {statement =
koneksi.createStatement();String url = "DELETE FROM barang WHERE
kode_barang='"+kd+"'";statement.executeUpdate(url);Pemrograman
Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang5System.out.println("Penghapusan berhasil");} catch
(SQLException e) {System.out.println("Penghapusan
gagal");System.out.println("Pesan :"+e.getMessage());}finally{if
(statement!=null){try{statement.close();System.out.println("Statement
berhasil ditutup");}catch(SQLException
e){System.out.println("Statement gagal
ditutup");System.out.println("Pesan :"+e.getMessage());}}}}}6.
Desain Program Paket aplikasia. menu_manajemen_barang.javaKetentuan
:Komponen Properties KeteranganVariable Name TextjLabel1 jLabel1
MENU MANAJEMENBARANGFormat dan posisidisesuaikanjButton1 btninput
INPUT BARANGjButton2 btnubah UBAH BARANGjButton3 btnhapus HAPUS
BARANGJButton4 btntampil TAMPIL BARANGJButton5 btnkeluar
KELUARHasil :Pemrograman Berorientasi ObjekDosen : Atep Ruhiat,
M.Kom.STMIK Sumedang6b. input_barang.javaKetentuan :Komponen
Properties KeteranganVariable Name TextjLabel1 jLabel1 INPUT DATA
BARANG Format dan posisidisesuaikan jLabel2 jLabel2 KODE
BARANGjLabel3 jLabel3 NAMA BARANGjLabel4 jLabel4 JUMLAHjLabel5
jLabel5 HARGAjTextField1 txtkode jTextField2 txtnama jTextField3
txtjumlah jTextField4 txtharga jButton1 btnsimpan SIMPANJButton2
btnkeluar KELUARHasil :c. ubah_barang.javaKetentuan :Komponen
Properties KeteranganVariable Name TextjLabel1 jLabel1 UBAH DATA
BARANGFormat dan posisidisesuaikanjLabel2 jLabel2 KODE
BARANGjLabel3 jLabel3 NAMA BARANGjLabel4 jLabel4 JUMLAHjLabel5
jLabel5 HARGAjComboBox cmbkodeJTextField1 txtnama JTextField2
txtjumlah JTextField3 txtharga jButton1 btnubah UBAHJButton2
btnkeluar KELUARPemrograman Berorientasi ObjekDosen : Atep Ruhiat,
M.Kom.STMIK Sumedang7Hasil :d. hapus_barang.javaKetentuan :Komponen
Properties KeteranganVariable Name TextjLabel1 jLabel1 HAPUS DATA
BARANGFormat dan posisidisesuaikanjLabel2 jLabel2 KODE
BARANGjLabel3 jLabel3 NAMA BARANGjLabel4 jLabel4 JUMLAHjLabel5
jLabel5 HARGAjComboBox cmbkodeJTextField1 txtnama JTextField2
txtjumlah JTextField3 txtharga jButton1 btnhapus HAPUSJButton2
btnkeluar KELUARHasil :Pemrograman Berorientasi ObjekDosen : Atep
Ruhiat, M.Kom.STMIK Sumedang8e. tampil_barang.javaKetentuan
:Komponen Properties KeteranganVariable Name TextjScrollPane1
jScrollPane1 Format dan posisidisesuaikan jButton1 btnkeluar
KELUARHasil :7. Kode Program Tambahan Pada Paket aplikasia.
menu_manajemen_barang.javaprivate void
btninputActionPerformed(java.awt.event.ActionEvent evt)
{input_barang input = new
input_barang();input.setVisible(true);}private void
btnubahActionPerformed(java.awt.event.ActionEvent evt) {ubah_barang
ubah = new ubah_barang();ubah.setVisible(true);}private void
btnhapusActionPerformed(java.awt.event.ActionEvent evt)
{hapus_barang hapus = new
hapus_barang();hapus.setVisible(true);}private void
btntampilActionPerformed(java.awt.event.ActionEvent evt)
{tampil_barang tampil = new
tampil_barang();tampil.setVisible(true);}private void
btnkeluarActionPerformed(java.awt.event.ActionEvent evt)
{dispose();}Pemrograman Berorientasi ObjekDosen : Atep Ruhiat,
M.Kom.STMIK Sumedang9b. input_barang.javapackage aplikasi;import
javax.swing.JOptionPane;import
kelola.kelola_barang;................private void
btnsimpanActionPerformed(java.awt.event.ActionEvent evt)
{if("".equals(txtkode.getText())||"".equals(txtnama.getText())||"".equals(txtjumlah.getText())||"".equals(txtharga.getText())){JOptionPane.showMessageDialog(this,
"Data masih kosong","Perhatian",
JOptionPane.OK_CANCEL_OPTION);}else{String kd =
txtkode.getText();String nm = txtnama.getText();int jml =
Integer.parseInt(txtjumlah.getText());long hrg =
Long.parseLong(txtharga.getText());kelola_barang perintah = new
kelola_barang();perintah.insert(kd, nm, jml,
hrg);txtkode.setText("");txtnama.setText("");txtjumlah.setText("");txtharga.setText("");JOptionPane.showMessageDialog(this,
"Penyimpanan
berhasil","Informasi",JOptionPane.OK_CANCEL_OPTION);}}private void
btnkeluarActionPerformed(java.awt.event.ActionEvent evt)
{this.setVisible(false);}c. ubah_barang.javapackage aplikasi;import
java.awt.event.ItemEvent;import java.sql.ResultSet;import
java.sql.Statement;import java.sql.SQLException;import
javax.swing.JOptionPane;import kelola.kelola_barang;import
koneksi.koneksi_database;public void tampil(){try{Statement st =
koneksi_database.getkoneksi().createStatement();ResultSet rs =
st.executeQuery("Select*From
barang");cmbkode.removeAllItems();while(rs.next()){cmbkode.addItem(rs.getString(1));}Pemrograman
Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang10cmbkode.setSelectedIndex(-1);rs.close();st.close();}catch(SQLException
e){System.out.println(e.getMessage());}}private void
pilih(){cmbkode.addItemListener(new java.awt.event.ItemListener()
{@Overridepublic void itemStateChanged(ItemEvent e) {try{Statement
st =koneksi_database.getkoneksi().createStatement();ResultSet rs =
st.executeQuery("Selectnama_barang,jumlah,harga from barang where
kode_barang='"+cmbkode.getSelectedItem().toString() +"'");if
(rs.next()){txtnama.setText(rs.getString(1));txtjumlah.setText(rs.getString(2));txtharga.setText(rs.getString(3));}rs.close();st.close();}catch(SQLException
ex){System.out.println(ex.getMessage());}}});}public ubah_barang()
{initComponents();tampil();pilih();}private void
btnubahActionPerformed(java.awt.event.ActionEvent evt)
{if("".equals(txtnama.getText())||"".equals(txtjumlah.getText())||"".equals(txtharga.getText())){JOptionPane.showMessageDialog(this,
"Data masih kosong","Perhatian",
JOptionPane.OK_CANCEL_OPTION);}else{Object kd =
cmbkode.getSelectedItem();String nm = txtnama.getText();int jml =
Integer.parseInt(txtjumlah.getText());long hrg =
Long.parseLong(txtharga.getText());kelola_barang perintah = new
kelola_barang();perintah.update(kd, nm, jml,
hrg);JOptionPane.showMessageDialog(this, "Perubahan
berhasil","Informasi",JOptionPane.OK_CANCEL_OPTION);this.setVisible(false);Pemrograman
Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang11}}private void
btnkeluarActionPerformed(java.awt.event.ActionEvent evt)
{this.setVisible(false);}d. hapus_barang.javapackage
aplikasi;import java.awt.event.ItemEvent;import
java.sql.ResultSet;import java.sql.Statement;import
java.sql.SQLException;import javax.swing.JOptionPane;import
kelola.kelola_barang;import koneksi.koneksi_database;public void
tampil(){try{Statement st =
koneksi_database.getkoneksi().createStatement();ResultSet rs =
st.executeQuery("Select*From
barang");cmbkode.removeAllItems();while(rs.next()){cmbkode.addItem(rs.getString(1));}cmbkode.setSelectedIndex(-1);rs.close();st.close();}catch(SQLException
e){System.out.println(e.getMessage());}}private void
pilih(){cmbkode.addItemListener(new java.awt.event.ItemListener()
{@Overridepublic void itemStateChanged(ItemEvent e) {try{Statement
st =koneksi_database.getkoneksi().createStatement();ResultSet rs =
st.executeQuery("Selectnama_barang,jumlah,harga from barang where
kode_barang='"+cmbkode.getSelectedItem().toString() +"'");if
(rs.next()){txtnama.setText(rs.getString(1));txtjumlah.setText(rs.getString(2));txtharga.setText(rs.getString(3));}rs.close();st.close();}catch(SQLException
ex){Pemrograman Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang12System.out.println(ex.getMessage());}}});}private void
btnhapusActionPerformed(java.awt.event.ActionEvent evt) {Object kd
= cmbkode.getSelectedItem();kelola_barang perintah = new
kelola_barang();perintah.delete(kd);JOptionPane.showMessageDialog(this,
"Penghapusan berhasil","Informasi",
JOptionPane.OK_CANCEL_OPTION);this.setVisible(false);}private void
btnkeluarActionPerformed(java.awt.event.ActionEvent evt)
{this.setVisible(false);}e. tampil_barang.javapackage
aplikasi;import java.sql.*;import javax.swing.JTable;import
koneksi.koneksi_database;private Object[][] ambil_data(){Object[][]
data=null;try{Statement st =
koneksi_database.getkoneksi().createStatement();ResultSet rs =
st.executeQuery("Selectkode_barang,nama_barang,jumlah,harga from
barang");rs.last();int jumlah=rs.getRow();rs.beforeFirst();data=new
Object[jumlah][4];int
no=-1;while(rs.next()){no=no+1;data[no][0]=rs.getString(1);data[no][1]=rs.getString(2);data[no][2]=rs.getString(3);data[no][3]=rs.getString(4);}st.close();}catch(SQLException
e){System.out.println(e.getMessage());}return data;}private void
tampil_data(){String [] nama_kolom ={"KODE BARANG","NAMA
BARANG","JUMLAH","HARGA"};Pemrograman Berorientasi ObjekDosen :
Atep Ruhiat, M.Kom.STMIK Sumedang13JTable tabel = new
JTable(ambil_data(),
nama_kolom);jScrollPane1.setViewportView(tabel);}public
tampil_barang() {initComponents();tampil_data();}private void
btnkeluarActionPerformed(java.awt.event.ActionEvent evt)
{this.setVisible(false);}8. Impelementasi Programa.
Menu_manajemen_barang.java (Shift+F6)b. Klik tombol INPUT BARANG.1.
2.Pemrograman Berorientasi ObjekDosen : Atep Ruhiat, M.Kom.STMIK
Sumedang14c. Klik tombol UBAH BARANG.1. 2.3. 4.d. Klik tombol HAPUS
BARANG.1. 2.3.Pemrograman Berorientasi ObjekDosen : Atep Ruhiat,
M.Kom.STMIK Sumedang153. 4.e. Klik tombol TAMPIL BARANG.9.
Pendistribusian Program1). 2).Pemrograman Berorientasi ObjekDosen :
Atep Ruhiat, M.Kom.STMIK Sumedang163).4).5).6).
