/**
* 初始化
*/
private void init() {
try {
fileName.setText(file.toString());
RandomAccessFile ra = new RandomAccessFile(file, "r");
byte[] buffer = new byte[128];
ra.seek(ra.length() - 128);
ra.read(buffer);
info = new SongInfo(buffer);
valid = info.isValid();
title.setText(info.getSongName());
artist.setText(info.getArtist());
album.setText(info.getAlbum());
year.setText(info.getYear());
comment.setText(info.getComment());
r2.setText("" + info.getR2());
r3.setText("" + info.getR3());
ra.close();
} catch (Exception ex) {
Logger.getLogger(SongInfoDialog.class.getName()).log(Level.SEVERE, null, ex);
}
}

/** 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.
*/
//
private void initComponents() {

jLabel5 = new javax.swing.JLabel();
fileName = new javax.swing.JTextField();
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
title = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
artist = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
album = new javax.swing.JTextField();
jLabel6 = new javax.swing.JLabel();
r2 = new javax.swing.JTextField();
year = new javax.swing.JTextField();
jLabel7 = new javax.swing.JLabel();
r3 = new javax.swing.JTextField();
jLabel8 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
comment = new javax.swing.JTextArea();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jLabel9 = new javax.swing.JLabel();

setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

jLabel5.setText("文件名:");

(编辑:aniston)