搜了一个mp3文件，首先转成wav 用mp3Towav.sh脚本

#!/bin/bashfolder=/home/qzc/workspace/
for file in $(find "$folder" -type f -iname "*.mp3")
doname=$(basename "$file" .mp3)dir=$(dirname "$file")echo ffmpeg -i "$file" -acodec pcm_s16le -ac 1 -ar 16000 "$dir"/"$name".wavffmpeg -i "$file" -acodec pcm_s16le -ac 1 -ar 16000 "$dir"/"$name".wav
done

然后是示例代码

package com.ewivt.redline.dms.jc5000;import javax.sound.sampled.*;
import java.io.File;
import java.io.IOException;public class AudioPlay {//private String path; //带路径的音频文件public static AudioInputStream audioStream;public static AudioFormat audioFormat;public static SourceDataLine sourceDataLine;public static boolean playing = false; //当前播放状态public static boolean replay = false; //是否继续播放public AudioPlay(String path, int times) {for (int i = 0; i < 2; i++) {System.out.println("i" + i);playMusicStopLast(path);try {Thread.sleep(200);} catch (InterruptedException e) {e.printStackTrace();}}}public static void main(String[] args) {final String path = "/home/qzc/workspace/11.wav";System.out.println("i 0");new Thread() {public void run() {playMusicStopLast(path);}}.start();System.out.println("i 1");try {Thread.sleep(10000);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("i 2");final String path1 = "/home/qzc/workspace/22.wav";new Thread() {public void run() {playMusicStopLast(path1);}}.start();}//停止上一个播放的新播放public static void playMusicStopLast(String path) {replay = false;while (playing) {try {Thread.sleep(50);} catch (InterruptedException e) {e.printStackTrace();}}playMusic(path);}public static void playMusic(String path) {try {replay = true;playing = true;int count;byte buf[] = new byte[1024];//获取音频输入流audioStream = AudioSystem.getAudioInputStream(new File(path));//获取音频的编码格式audioFormat = audioStream.getFormat();DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, audioFormat, AudioSystem.NOT_SPECIFIED);sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);sourceDataLine.open(audioFormat);sourceDataLine.start();//播放音频while (replay && (count = audioStream.read(buf, 0, buf.length)) != -1) {sourceDataLine.write(buf, 0, count);}//播放结束，释放资源sourceDataLine.drain();sourceDataLine.close();audioStream.close();playing = false;} catch (UnsupportedAudioFileException ex) {ex.printStackTrace();} catch (LineUnavailableException ex) {ex.printStackTrace();} catch (IOException ex) {ex.printStackTrace();}}
}

另外线程播放好处是后一个播放能停止前面一个播放，否则只能等前面播放完成才能播放后面一个