Java播放音频文件

1、Java播放MP3

 不是用独立线程播放：

AudioInputStream audioInputStream;// 文件流
			AudioFormat audioFormat;// 文件格式
			SourceDataLine sourceDataLine;// 输出设备

 

File file = new File(filepath + filename);//将MP3文件路径转换为File对象
			
			// 取得文件输入流
			audioInputStream = AudioSystem.getAudioInputStream(file);
			audioFormat = audioInputStream.getFormat();//格式化
			// 转换mp3文件编码
			if (audioFormat.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) {
				audioFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,
						audioFormat.getSampleRate(), 16, audioFormat
								.getChannels(), audioFormat.getChannels() * 2,
						audioFormat.getSampleRate(), false);
				audioInputStream = AudioSystem.getAudioInputStream(audioFormat,
						audioInputStream);
			}

			// 打开输出设备
			DataLine.Info dataLineInfo = new DataLine.Info(
					SourceDataLine.class, audioFormat,
					AudioSystem.NOT_SPECIFIED);
			sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
			sourceDataLine.open(audioFormat);
			sourceDataLine.start();

isStop = false;
			byte tempBuffer[] = new byte[320];
			try {
				int cnt;
				hasStop = false;
				// 读取数据到缓存数据
				while ((cnt = audioInputStream.read(tempBuffer, 0,
						tempBuffer.length)) != -1) {//从输入流中读取音频信息
					if (isStop)
						break;
					if (cnt > 0) {
						// 写入缓存数据
						sourceDataLine.write(tempBuffer, 0, cnt);//将音频信息写入混频器
					}
				}
				
				// Block等待临时数据被输出为空
				sourceDataLine.drain();
				sourceDataLine.close();
				hasStop = true;
			} catch (Exception e) {
				e.printStackTrace();
				System.exit(0);
			}

 使用独立线程播放：

AudioInputStream audioInputStream;// 文件流
			AudioFormat audioFormat;// 文件格式
			SourceDataLine sourceDataLine;// 输出设备

 

File file = new File(filepath + filename);//将MP3文件路径转换为File对象
			
			// 取得文件输入流
			audioInputStream = AudioSystem.getAudioInputStream(file);
			audioFormat = audioInputStream.getFormat();//格式化
			// 转换mp3文件编码
			if (audioFormat.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) {
				audioFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,
						audioFormat.getSampleRate(), 16, audioFormat
								.getChannels(), audioFormat.getChannels() * 2,
						audioFormat.getSampleRate(), false);
				audioInputStream = AudioSystem.getAudioInputStream(audioFormat,
						audioInputStream);
			}

			// 打开输出设备
			DataLine.Info dataLineInfo = new DataLine.Info(
					SourceDataLine.class, audioFormat,
					AudioSystem.NOT_SPECIFIED);
			sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
			sourceDataLine.open(audioFormat);
			sourceDataLine.start();
// 创建独立线程进行播放
Thread playThread = new Thread(new PlayThread());
			playThread.start();

 

// 播放线程
	class PlayThread extends Thread {
		byte tempBuffer[] = new byte[320];

		public void run() {
			try {
				int cnt;
				hasStop = false;
				// 读取数据到缓存数据
				while ((cnt = audioInputStream.read(tempBuffer, 0,
						tempBuffer.length)) != -1) {//从输入流中读取音频信息
					if (isStop)
						break;
					if (cnt > 0) {
						// 写入缓存数据
						sourceDataLine.write(tempBuffer, 0, cnt);//将音频信息写入混频器
					}
				}
				// Block等待临时数据被输出为空
				sourceDataLine.drain();
				sourceDataLine.close();
				hasStop = true;
			} catch (Exception e) {
				e.printStackTrace();
				System.exit(0);
			}
		}
	}

 PS：需要外部jar支持：

jl1.0.jar
mp3spi1.9.4.jar
tritonus_share.jar