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java midi音乐文件播放器
java midi音乐文件播放器
import javax.swing.*;
import javax.sound.midi.*;
import java.awt.GridLayout;
import java.io.File;
public class MidiPlayer extends JFrame {
@SuppressWarnings("deprecation")
MidiPlayer(String song) {
super(song);
setSize(300, 150);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MidiPanel midi = new MidiPanel(song);
JPanel pane = new JPanel();
pane.add(midi);
setContentPane(pane);
show();
}
public static void main(String[] arguments) {
MidiPlayer pm = new MidiPlayer("c:\\1.midi"); // midi文件
}
}
class MidiPanel extends JPanel implements Runnable {
Thread runner;
JProgressBar progress = new JProgressBar();
Sequence currentSound;// 音序
Sequencer player;// 默认音序器
String songFile;// 歌曲
MidiPanel(String song) {
super();
songFile = song;
JLabel label = new JLabel("Playing file...");
setLayout(new GridLayout(2, 1));
add(label);
add(progress);
if (runner == null) {
runner = new Thread(this);
runner.start();
}
}
public void run() {
try {
System.out.println(songFile);
File file = new File(songFile);
currentSound = MidiSystem.getSequence(file);// 获取音序文件
player = MidiSystem.getSequencer();// 获取音序器
player.open();
player.setSequence(currentSound);// 设置音序器播放指定音乐文件
progress.setMinimum(0);
progress.setMaximum((int) player.getMicrosecondLength());// 设置最大位歌曲时间
player.start();
while (player.isRunning()) {
progress.setValue((int) player.getMicrosecondPosition());// 设置播放文件显示当前播放进度
try {
Thread.sleep(1000);
} catch (Exception e) {
// TODO: handle exception
}
}
player.close();
} catch (Exception e) {
// TODO: handle exception
}
}
}
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