mainframe.java.bak

JAVA读取JPEG图象

package jdbcblob;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.io.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class mainFrame extends JFrame {
  private JPanel contentPane;
  private JMenuBar jMenuBar1 = new JMenuBar();
  private JMenu jMenuFile = new JMenu();
  private JMenuItem jMenuFileExit = new JMenuItem();
  private JMenu jMenuHelp = new JMenu();
  private JMenuItem jMenuHelpAbout = new JMenuItem();
  private JToolBar jToolBar = new JToolBar();
  private JButton jButton1 = new JButton();
  private JButton jButton2 = new JButton();
  private JButton jButton3 = new JButton();
  private ImageIcon image1;
  private ImageIcon image2;
  private ImageIcon image3;
  private JLabel statusBar = new JLabel();
  private BorderLayout borderLayout1 = new BorderLayout();
  private JMenuItem jMenuItem1 = new JMenuItem();
  private JMenuItem jMenuItem2 = new JMenuItem();
  private JPanel displaypanel = new JPanel();
  private JTextArea messages = new JTextArea();
  private JPanel graphicpanel = new JPanel();
  private XYLayout xYLayout1 = new XYLayout();
  private BoxLayout2 boxLayout21 = new BoxLayout2();

  //Construct the frame
  public mainFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    image1 = new ImageIcon(jdbcblob.mainFrame.class.getResource("openFile.gif"));
    image2 = new ImageIcon(jdbcblob.mainFrame.class.getResource("closeFile.gif"));
    image3 = new ImageIcon(jdbcblob.mainFrame.class.getResource("help.gif"));
    //setIconImage(Toolkit.getDefaultToolkit().createImage(mainFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(592, 421));
    this.setTitle("主程序窗口");
    statusBar.setBorder(BorderFactory.createEtchedBorder());
    statusBar.setText(" ");
    jMenuFile.setText("File");
    jMenuFileExit.setText("Exit");
    jMenuFileExit.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuFileExit_actionPerformed(e);
      }
    });
    jMenuHelp.setText("Help");
    jMenuHelpAbout.setText("About");
    jMenuHelpAbout.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuHelpAbout_actionPerformed(e);
      }
    });
    jButton1.setIcon(image1);
    jButton1.setToolTipText("Open File");
    jButton2.setIcon(image2);
    jButton2.setToolTipText("Close File");
    jButton3.setIcon(image3);
    jButton3.setToolTipText("Help");
    jMenuItem1.setText("写BLOB");
    jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuItem1_actionPerformed(e);
      }
    });
    jMenuItem2.setText("读BLOB");
    jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jMenuItem2_actionPerformed(e);
      }
    });
    graphicpanel.setBorder(BorderFactory.createLoweredBevelBorder());
    graphicpanel.setLayout(xYLayout1);
    displaypanel.setLayout(boxLayout21);
    jToolBar.add(jButton1);
    jToolBar.add(jButton2);
    jToolBar.add(jButton3);
    contentPane.add(displaypanel,  BorderLayout.CENTER);
    jMenuFile.add(jMenuItem1);
    jMenuFile.add(jMenuItem2);
    jMenuFile.addSeparator();
    jMenuFile.add(jMenuFileExit);
    jMenuHelp.add(jMenuHelpAbout);
    jMenuBar1.add(jMenuFile);
    jMenuBar1.add(jMenuHelp);
    this.setJMenuBar(jMenuBar1);
    contentPane.add(statusBar, BorderLayout.SOUTH);
    contentPane.add(jToolBar, BorderLayout.NORTH);
    displaypanel.add(messages, null);
    displaypanel.add(graphicpanel, null);
  }
  //File | Exit action performed
  public void jMenuFileExit_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
  //Help | About action performed
  public void jMenuHelpAbout_actionPerformed(ActionEvent e) {
    mainFrame_AboutBox dlg = new mainFrame_AboutBox(this);
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y);
    dlg.setModal(true);
    dlg.pack();
    dlg.show();
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      jMenuFileExit_actionPerformed(null);
    }
  }

 /*some procedures used for write blob*/
  void jMenuItem1_actionPerformed(ActionEvent e) {

    try {
      WriteBlobToDb w=new WriteBlobToDb();
      w.sendToDb() ;

    }
    catch (Exception ex) {
      ex.printStackTrace() ;
    }
    finally {
      System.out.print("Can not process any longer!") ;
    }
  }

  /*end of writing blob*/

  void jMenuItem2_actionPerformed(ActionEvent e) {
    try {
      ReadBlobFromDb w=new ReadBlobFromDb();
      w.readFromDb() ;

    }
    catch (Exception ex) {
      ex.printStackTrace() ;
    }
    finally {
      System.out.print("Write OK!") ;
    }

  }
}