java Swing 播放背景音乐

import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import sun.audio.AudioData;
import sun.audio.AudioPlayer;
import sun.audio.AudioStream;
import sun.audio.ContinuousAudioDataStream;

public class MusicPlay {
    private AudioStream as; // 单次播放声音用
    ContinuousAudioDataStream cas;// 循环播放声音

    // 构造函数
    public MusicPlay(URL url) {
        try {
            // 打开一个声音文件流作为输入
            as = new AudioStream(url.openStream());
        } catch(FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch(IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    // 一次播放 开始
    public void start() {
        if(as == null) {
            System.out.println("AudioStream object is not created!");
            return;
        } else {
            AudioPlayer.player.start(as);
        }
    }

    // 一次播放 停止
    public void stop() {
        if(as == null) {
            System.out.println("AudioStream object is not created!");
            return;
        } else {
            AudioPlayer.player.stop(as);
        }
    }

    // 循环播放 开始
    public void continuousStart() {
        // Create AudioData source.
        AudioData data = null;
        try {
            data = as.getData();  //getData()函数不支持 mid的音频文件
        } catch(IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        // Create ContinuousAudioDataStream.
        cas = new ContinuousAudioDataStream(data);

        // Play audio.
        AudioPlayer.player.start(cas);
    }

    // 循环播放 停止
    public void continuousStop() {
        if(cas != null) {
            AudioPlayer.player.stop(cas);
        }
    }

}

使用：

MusicPlay myMusicPlay = new MusicPlay(MusicPlay.class.getResource("/music/dog.wav"));
myMusicPlay.start();//播放一次
myMusicPlay.stop();//停止
myMusicPlay.continuousStart();//循环播放
myMusicPlay.continuousStop();//停止

 注意这里只是示例，stop与start不能连用，另这程序试验过，无法播放mp3音频文件、无法播放mid音频文件