Wednesday, December 10, 2014

Belajar Java 2 ( Pencarian & Edit / Update Data dengan Netbeans )

Salam NewGen, kali ini saya akan melanjutkan share belajar java 2 sekarang kita akan coba membuat pencarian dan edit / update data pada Netbeans dengan menggunakan database MySQL, Ok langsung saja...

Pertama kita buat terlebih dahalu database dan tabelnya pada Xampp/ MySQL, disini saya menggunakan database BelajarJava2 dan Tabel barang
Buat tabel dengan 3 field (kode, nama dan jenis) seperti gambar dibawah, kemudian Simpan


Kemudian kita isi tabel tersebut
Kode               Nama                           Jenis
S001                Software A                 SW
S002                Software B                 SW
H001               Hardware A                HW
H002               Hardware B                HW


Setelah selesai dengan database dan tabelnya selanjutnya kita buka NetBeansnya dan buat project baru, pilih File >> New Project >> Java >> Java Application kemudian Next


Berinama Project Java2 pilih lokasi penyimpanan kemudian hilangkan ceklis pada Create Main Class karna kita nanti hanya menggunakan 1 Jframe saja >> Finish


Setelah pembuatan project baru selesai kita tambah Jframe pada project, Klik kanan default package >> New >> Jframe berinama Cari_Edit kemudian Finish


Design JFrame seperti dibawah ini


Nama                          Properties                   Code
JLabel1                        text = Kode                 -
JLabel2                        text = Nama                -
JLabel3                        text = Jenis                  -
JTextField1                 text =                           Variable Name = txtkode
JTextField2                 text =                           Variable Name = txtnama
JTextField3                 text =                           Variable Name = txtjenis
JButton1                     text = Cari                   Variable Name = bcari
JButton12                   text = Update              Variable Name = bupdate

Setelah selesai design Jframenya selanjutnya ke source dan ketik listing dibawah ini diatas public class Cari_Edit

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.table.DefaultTableModel;


Ketikan listing dibawah setelah public class Cari_Edit yang digunakan untuk koneksi ke database

public Connection kon;
public String sql = "";
public Statement stat ;
public ResultSet rs;


Listing Button Cari ( bcari )

try {
            Class.forName("com.mysql.jdbc.Driver");
            kon = DriverManager.getConnection("jdbc:mysql://localhost:3306/BelajarJava2", "root", "");
            sql = "select * from barang where kode='" + txtkode.getText() + "'";
            stat = kon.createStatement();
            rs = stat.executeQuery(sql);
            while (rs.next()) {
                txtnama.setText(rs.getString("nama"));
                txtjenis.setText(rs.getString("jenis"));
                javax.swing.JOptionPane.showMessageDialog(null, "Data Ditemukan");
            }
        } catch (Exception e) {
        }


Listing Button Update ( bupdate )

try {
            Class.forName("com.mysql.jdbc.Driver");
            kon = DriverManager.getConnection("jdbc:mysql://localhost:3306/BelajarJava2", "root", "");
            sql = "update barang set nama='" + txtnama.getText() + "',"
                    + "jenis ='" + txtjenis.getText() + "' "
                    + "where kode ='" + txtkode.getText() + "'";
            stat = kon.createStatement();
            stat.execute(sql);
            txtkode.setText("");
            txtnama.setText("");
            txtjenis.setText("");
            txtkode.requestFocus();
            {
                javax.swing.JOptionPane.showMessageDialog(null, "Update Data Sukses");
            }
        } catch (Exception e) {
        }



Setelah listing sudah di ketikkan semua selanjutnya kita tambahkan Library koneksi database MySQL dengan cara klik kanan Libraries >> Add Library


Cari dan Pilih MySQL JDBC Driver >> Add Library


Selesai deh share kali ini sekarang tinggal running




Semoga dapat bermanfaat ya para NewGen, saya hanya sedikit berbagi apa yang saya dapatkan dalam pelajaran mata kuliah Java2 kalian bisa melakukan pengembangan dan mengexplorasi sendiri ya...


Salam NewGen...

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