Thursday, September 27, 2018

Java And MySQL - How To display Image From Mysql Database to jlable with source code

In this video i show you how display image from mysql database using java application.last video I show you how insert image to mysql database.You can download all source code
 related this project.






Source code


package image;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import java.awt.Image;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

/**
 *
 * @author ccs
 */
public class Main extends javax.swing.JFrame {

    /**
     * Creates new form Main
     */
 
   private ImageIcon format=null;
String fname=null;
int s=0;
byte[] pimage=null;
Connection conn=null;
 
 
    public Main() {
        initComponents();
        conn=DBConnect.connect();
    }

    /**
     * This method is called from within the constructor 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">//GEN-BEGIN:initComponents
    private void initComponents() {

        jTabbedPane1 = new javax.swing.JTabbedPane();
        jPanel2 = new javax.swing.JPanel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        txtdisid = new javax.swing.JTextField();
        lbldisplay = new javax.swing.JLabel();
        Insert = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        txtid = new javax.swing.JTextField();
        lblimage = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel2.setBackground(new java.awt.Color(0, 255, 204));

        jLabel3.setFont(new java.awt.Font("Sitka Text", 3, 36)); // NOI18N
        jLabel3.setForeground(new java.awt.Color(255, 0, 51));
        jLabel3.setText("Image Display");

        jLabel4.setFont(new java.awt.Font("Sitka Text", 3, 14)); // NOI18N
        jLabel4.setText("Image ID");

        txtdisid.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyReleased(java.awt.event.KeyEvent evt) {
                txtdisidKeyReleased(evt);
            }
        });

        lbldisplay.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 2));

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGap(26, 26, 26)
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(txtdisid, javax.swing.GroupLayout.PREFERRED_SIZE, 155, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 263, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(41, 41, 41)
                .addComponent(lbldisplay, javax.swing.GroupLayout.PREFERRED_SIZE, 282, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 0, Short.MAX_VALUE))
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 47, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(63, 63, 63)
                        .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(txtdisid, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addGap(21, 21, 21)
                        .addComponent(lbldisplay, javax.swing.GroupLayout.PREFERRED_SIZE, 281, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(22, Short.MAX_VALUE))
        );

        jTabbedPane1.addTab("Display Image", jPanel2);

        Insert.setBackground(new java.awt.Color(255, 255, 102));

        jLabel1.setFont(new java.awt.Font("Tahoma", 3, 36)); // NOI18N
        jLabel1.setForeground(new java.awt.Color(255, 0, 102));
        jLabel1.setText("Image Insert");

        jLabel2.setFont(new java.awt.Font("Tahoma", 3, 14)); // NOI18N
        jLabel2.setText("Image ID");

        lblimage.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 2));

        jButton1.setBackground(new java.awt.Color(0, 255, 51));
        jButton1.setFont(new java.awt.Font("Sitka Text", 3, 18)); // NOI18N
        jButton1.setText("Choose Image");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setBackground(new java.awt.Color(0, 255, 51));
        jButton2.setFont(new java.awt.Font("Sitka Text", 3, 18)); // NOI18N
        jButton2.setText("Insert Image");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout InsertLayout = new javax.swing.GroupLayout(Insert);
        Insert.setLayout(InsertLayout);
        InsertLayout.setHorizontalGroup(
            InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(InsertLayout.createSequentialGroup()
                .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(InsertLayout.createSequentialGroup()
                        .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(txtid, javax.swing.GroupLayout.PREFERRED_SIZE, 149, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(InsertLayout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 251, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 251, javax.swing.GroupLayout.PREFERRED_SIZE))))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 96, Short.MAX_VALUE)
                .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(lblimage, javax.swing.GroupLayout.PREFERRED_SIZE, 245, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 245, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap())
        );
        InsertLayout.setVerticalGroup(
            InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(InsertLayout.createSequentialGroup()
                .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(InsertLayout.createSequentialGroup()
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel2)
                            .addComponent(txtid, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(InsertLayout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(lblimage, javax.swing.GroupLayout.PREFERRED_SIZE, 237, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(InsertLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(29, Short.MAX_VALUE))
        );

        jTabbedPane1.addTab("Insert Image", Insert);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jTabbedPane1)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jTabbedPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 352, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 0, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
   
         
JFileChooser fchoser=new JFileChooser();
        fchoser.showOpenDialog(null);
        File f=fchoser.getSelectedFile();
        fname=f.getAbsolutePath();
        ImageIcon micon=new ImageIcon(fname);      
        try {
            File image=new File(fname);
            FileInputStream fis=new FileInputStream(image);
            ByteArrayOutputStream baos=new ByteArrayOutputStream();
            byte[] buf=new byte[1024];
            for(int readnum; (readnum=fis.read(buf)) !=-1;)
            {          
                baos.write(buf,0,readnum);              
            }
            pimage=baos.toByteArray();
            lblimage.setIcon(resizeImage(fname, buf));
        } catch (Exception e) {
        }
     
     
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
   
        String id=txtid.getText();
        try {
             String q= "INSERT INTO `img`(`id`, `image`) VALUES (?,?)";            
               PreparedStatement pst=conn.prepareStatement(q);              
                pst.setString(1, id);
                pst.setBytes(2, pimage);              
                pst.execute();
        } catch (Exception e) {
        }
     
     
    }//GEN-LAST:event_jButton2ActionPerformed

    private void txtdisidKeyReleased(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_txtdisidKeyReleased
   
         try {
            String sql="SELECT `image` FROM `img` WHERE id='"+txtdisid.getText()+"'";        
           PreparedStatement pst=conn.prepareStatement(sql);
             ResultSet rs=pst.executeQuery();
           if(rs.next())
           {
     
           
             
               byte[] imagedata=rs.getBytes("image");
               format=new ImageIcon(imagedata);
               Image mm=format.getImage();
               Image img2=mm.getScaledInstance(lbldisplay.getWidth(), lbldisplay.getHeight(), Image.SCALE_SMOOTH);
               ImageIcon image=new ImageIcon(img2);
               lbldisplay.setIcon(image);
            }
           else
           {
       
           }
        } catch (Exception e) {
         
        }      
     
     
    }//GEN-LAST:event_txtdisidKeyReleased
//private ImageIcon format=null;
 
public ImageIcon resizeImage(String imagePath, byte[] pic){
       
        ImageIcon myImage=null;
        if(imagePath !=null)
        {
        myImage=new ImageIcon(imagePath);
     
        }else{
         myImage=new ImageIcon(pic);
        }
             
        Image img=myImage.getImage();
        Image img2=img.getScaledInstance(lblimage.getHeight(), lblimage.getWidth(),  Image.SCALE_SMOOTH);
        ImageIcon image=new ImageIcon(img2);
        return image;
    }
 
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Main().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPanel Insert;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JTabbedPane jTabbedPane1;
    private javax.swing.JLabel lbldisplay;
    private javax.swing.JLabel lblimage;
    private javax.swing.JTextField txtdisid;
    private javax.swing.JTextField txtid;
    // End of variables declaration//GEN-END:variables



}



Database Connection


package image;

import java.sql.Connection;
import java.sql.DriverManager;

/**
 *
 * @author ccs
 */
public class DBConnect {
 
 
     public static Connection connect()
    {
        Connection con=null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            con=DriverManager.getConnection("jdbc:mysql://localhost:3306/image?","root","");
           // JOptionPane.showConfirmDialog(null,"connect to data base");
         
        } catch (Exception e) {
            System.out.println("inter.DBConnect.connect()");
           // JOptionPane.showConfirmDialog(null,e);
        }
       return con;
    }
 
}

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