java播放声音类和一个简单示例

import java.io.File;
import java.io.IOException;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.SourceDataLine;

//播放声音的类
public class PlaySounds extends Thread {

 private String filename;
 public PlaySounds(String wavfile) {

  filename = System.getProperty("user.dir")+wavfile;
 }
 public void run() {

  File soundFile = new File(filename);

  AudioInputStream audioInputStream = null;
  try {
   audioInputStream = AudioSystem.getAudioInputStream(soundFile);
  } catch (Exception e1) {
   e1.printStackTrace();
   return;
  }
  AudioFormat format = audioInputStream.getFormat();
  SourceDataLine auline = null;
  DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
  try {
   auline = (SourceDataLine) AudioSystem.getLine(info);
   auline.open(format);
  } catch (Exception e) {
   e.printStackTrace();
   return;
  }
  auline.start();
  int nBytesRead = 0;
  //这是缓冲
  byte[] abData = new byte[512];
  try {
   while (nBytesRead != -1) {
    nBytesRead = audioInputStream.read(abData, 0, abData.length);
    if (nBytesRead >= 0)
     auline.write(abData, 0, nBytesRead);
   }
  } catch (IOException e) {
   e.printStackTrace();
   return;
  } finally {
   auline.drain();
   auline.close();
  }
 } 
}

// 文件名:MuiscPlay.java 
import java.io.*; 
import java.net.URL; 
import sun.audio.*;

/** 
* 
* @author wuhuiwen 
* 播放音频文件，产生音效 
*/ 
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(); 
        } 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); 
        }    
    }

}