Java เก็บไฟล์ รูปไว้ใน Mysql และแสดงรูปออกมายังงัยครับ ใช้ netbean ครับ

import java.awt.Color;
import javax.swing.ImageIcon;
import javax.swing.JApplet;
import javax.swing.JButton;

public class yahoo extends JApplet {

	private JButton button,picture;

    public void init() {
    	setBackground(Color.PINK);
    	button = new JButton("clilck here");
    	ImageIcon pic = new ImageIcon("flower.jpg");
    	picture=new JButton(pic);
    	add(button);
    	add(picture);
    }
}

private transient java.sql.Blob psPic;

public void blob2file() {
		if (this.psPic==null) {
			return;
		}
		try {

			long size = this.psPic.length();
			byte[] buffer = this.psPic.getBytes(1, (int) size);
			String urlTemp = "C:/";
			String savedFilename = "temp.jpg";//image source in blob is jpg.
			String savedFullPathFilename = urlTemp + File.separatorChar
					+ savedFilename;

			File file = new File(savedFullPathFilename);
			if (file.exists()) {
				file.delete();
			}

			LogUtil.mainLog.debug("Start write with OutputStream.");
			OutputStream ost = new FileOutputStream(file);
			ost.write(buffer);
			ost.close();

		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}