uploading a text file into a database

import java.io.*;
import java.sql.*;
import javax.swing.*;
import java.awt.event.*;

public class UploadTextFile {
     static File file;
        public static void main(String[] args) throws Exception {

               JLabel label=new JLabel("Choose File: ");
               final JTextField text=new JTextField(20);
               JButton b1=new JButton("Browse");
               JButton b2=new JButton("Upload");
               b1.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent e){
                   JFileChooser chooser=new  JFileChooser();
               int returnVal = chooser.showOpenDialog(null);
               if(returnVal == JFileChooser.APPROVE_OPTION) {
                file = chooser.getSelectedFile();
                text.setText(file.getPath());
                   }
                   }
               });

               b2.addActionListener(new ActionListener(){
                   public void actionPerformed(ActionEvent e){
                       try{
                FileInputStream fis = new FileInputStream(file);
                Class.forName("com.mysql.jdbc.Driver");
                Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
                PreparedStatement pstmt = conn.prepareStatement("insert into myfile( file_name, file_data) values ( ?, ?)");
                pstmt.setString(1, file.getName());
                pstmt.setBinaryStream(2, fis, (int) file.length());
                pstmt.executeUpdate();
                JOptionPane.showMessageDialog(null,"Uploaded successfully to database");
                pstmt.close();
                conn.close();
                       }
                       catch(Exception ex){
                       System.out.println(ex);
                       }
                   }
               });
               JFrame f=new JFrame();
               f.setLayout(null);
               label.setBounds(10,10,100,20);
               text.setBounds(110,10,100,20);
               b1.setBounds(220,10,80,20);
               b2.setBounds(310,10,80,20);
               f.add(label);
               f.add(text);
               f.add(b1);
               f.add(b2);
               f.setVisible(true);
               f.setSize(450,200);               
        }
}